This is a selected list of open-source video games. Open source video games are games assembled from and are themselves open source software, including public domain

Public domain

Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...

 games with published source code. This list includes games in which the game engine is open-source but the game content (media and levels, for example) is under a different license.

Title	First Release	Last Update	Genre	Engine License	Content License	Additional Information
0 A.D. 0 A.D. (game) 0 A.D. is a free, open-source, cross-platform real-time strategy game under development by Wildfire Games. It is a historical war and economy game focusing on the years between 500 B.C. and A.D. 500...	2010	2011	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPLv2	CC-BY-SA Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	Historical, cross-platform RTS, using an original engine named Pyrogenesis. Game source code released July 10, 2009.
Abuse Abuse (computer game) Abuse is a run and gun video game developed by Crack dot Com and published by Origin Systems/Electronic Arts. It was released in , and originally ran on MS-DOS and Linux operating systems. An improved port of the game was released for Mac OS by Bungie Studios and for the Acorn Archimedes by R-Comp...	1995	2011	Shoot 'em up	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...  and Proprietary*	Game source code was released as public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...  along with the shareware-released media files. *Only shareware data, excluding the sound effects, is in the public domain; the rest is proprietary.
Advanced Strategic Command	1999	2010	TBТ Turn-based tactics Turn-based tactics , or tactical turn-based , is a computer and video game genre of strategy video games that through stop-action simulates the considerations and circumstances of operational warfare and military tactics in generally small-scale confrontations as opposed to more strategic...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Tactical war game in the tradition of Battle Isle.
Arx Fatalis Arx Fatalis Arx Fatalis is a partially open source first-person role-playing video game for the Xbox and PC, released on November 2002 by Arkane Studios, a video game developer based in Lyon, France....	2002	2011	RPG Role-playing game A role-playing game is a game in which players assume the roles of characters in a fictional setting. Players take responsibility for acting out these roles within a narrative, either through literal acting, or through a process of structured decision-making or character development...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	The design of Arx Fatalis was heavily influenced by Ultima Underworld. Game source released on January 14, 2011.
Adventure Colossal Cave Adventure Colossal Cave Adventure gave its name to the computer adventure game genre . It was originally designed by Will Crowther, a programmer and caving enthusiast who based the layout on part of the Mammoth Cave system in Kentucky...	1976		Text adventure	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...	The original text adventure game by Crowther / Woods.
Aleph One	2000	2010	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Based on the source code for Marathon 2: Durandal Marathon 2: Durandal Marathon 2: Durandal is the first sequel in the Marathon series of science fiction first-person shooter computer games from Bungie Software. It was released on November 24, 1995. The game is mostly set on the fictional planet of Lh'owon, homeworld of the S'pht, and once again the player takes the... .
Angband	1990	2011	RPG Role-playing game A role-playing game is a game in which players assume the roles of characters in a fictional setting. Players take responsibility for acting out these roles within a narrative, either through literal acting, or through a process of structured decision-making or character development...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	A roguelike Roguelike The roguelike is a sub-genre of role-playing video games, characterized by randomization for replayability, permanent death, and turn-based movement. Most roguelikes feature ASCII graphics, with newer ones increasingly offering tile-based graphics. Games are typically dungeon crawls, with many...  dungeon crawl Dungeon crawl A dungeon crawl is a type of scenario in fantasy role-playing games in which heroes navigate a labyrinthine environment, battling various monsters, and looting any treasure they may find...  game.
Aquaria Aquaria (video game) Aquaria is a 2D sidescrolling action-adventure computer game designed by Alec Holowka and Derek Yu, who together form the independent game company Bit Blot, which developed and originally published the game. After more than two years of development, the game was released in 2007 for Windows...	2010	2010	Action-adventure Action-adventure game An action-adventure game is a video game that combines elements of the adventure game genre with various action game elements. It is perhaps the broadest and most diverse genre in gaming, and can include many games which might better be categorized under narrow genres...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Open sourced with Humble Indie Bundle Humble Indie Bundle The Humble Indie Bundles or Humble Bundles are a series of game bundles, that are sold and distributed online at a price determined by the purchaser. The games are multi-platform, DRM-free, and independently developed, and buyers can set the revenue split between the developers, charities and... .
Armagetron Advanced Armagetron Advanced Armagetron Advanced is a multiplayer game in 3D that attempts to emulate and expand on the light cycle sequence from the film Tron. It is available for Linux, Mac OS X, Microsoft Windows, AmigaOS 4 and OpenBSD as free software released under version 2 of the GNU General Public...	2001	2010	Racing Racing game A racing video game is a genre of video games, either in the first-person or third-person perspective, in which the player partakes in a racing competition with any type of land, air, or sea vehicles. They may be based on anything from real-world racing leagues to entirely fantastical settings...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	A multiplayer, 3D Tron Tron -Film:*Tron , a franchise that began in 1982 with the Walt Disney Pictures film Tron** Tron , a 1982 science fiction film by Disney, starring Jeff Bridges, Bruce Boxleitner, Cindy Morgan, Dan Shor and David Warner... lightcycle racing game.
AssaultCube AssaultCube AssaultCube is a free multiplayer first-person shooter game, based on the CUBE engine. It takes place in realistic environments, with fast, arcade gameplay...	2006	2010	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Based on the Cube engine.
Battle for Wesnoth	2005	2011	TBS Turn-based strategy A turn-based strategy game is a strategy game where players take turns when playing...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Turn based strategy game with RPG elements. Includes single-player campaign and skirmish modes as well as multiplayer.
Beyond the Titanic	1986		Text adventure	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Game source released on March 20, 2009.
Blob Wars: Blob And Conquer	2008	2009	Action-adventure Action-adventure game An action-adventure game is a video game that combines elements of the adventure game genre with various action game elements. It is perhaps the broadest and most diverse genre in gaming, and can include many games which might better be categorized under narrow genres...	GPLv2	GPLv2, CC-by-sa, other open source	3D sequel to Blob Wars: Metal Blob Solid.
Blob Wars: Metal Blob Solid	2003	2009	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Bos Wars Bos Wars Bos Wars is an open source, cross-platform real-time strategy video game. The project was started by Tina Petersen in 2004, and the current project leader is François Beerten...	2004	2010	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	2D RTS running on a modified version of the Stratagus Stratagus Stratagus was a free cross-platform real-time strategy game engine used to build other games. It is written in C with the configuration language being Lua. SDL, gzip and bzip2 are among the external libraries used.-History:...  engine.
BZFlag BZFlag BZFlag is a free, open source, online multiplayer video game.A first-person tank battle game, similar in concept to Battlezone, it was originally written by Chris Schoeneman for SGI graphics workstations running IRIX, but has now been ported to other operating systems including...	1997	2011	Tank FPS	LGPL	LGPL
C-evo C-evo C-evo is a free turn-based strategy computer game written in Delphi, with the majority of design and programming done by Steffen Gerlach. The source code is in the public domain, but the graphics are freeware...	1999	2008	TBТ Turn-based tactics Turn-based tactics , or tactical turn-based , is a computer and video game genre of strategy video games that through stop-action simulates the considerations and circumstances of operational warfare and military tactics in generally small-scale confrontations as opposed to more strategic... , 4X 4X 4X games are a genre of strategy video game in which players control an empire and "explore, expand, exploit, and exterminate." The term was first coined by Alan Emrich in his September 1993 preview of Master of Orion for Computer Gaming World...	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...	Proprietary Proprietary software Proprietary software is computer software licensed under exclusive legal right of the copyright holder. The licensee is given the right to use the software under certain conditions, while restricted from other uses, such as modification, further distribution, or reverse engineering.Complementary...	Inspired by Sid Meier's Civilization.
Chromium B.S.U. Chromium B.S.U. Chromium B.S.U. is an arcade-style, top-scrolling space shooter available on Windows, iPhone, PSP, Mac, Linux and numerous other UNIX-like operating systems. It is a free software distributed under the Artistic License....	2000	2010	Arcade Arcade game An arcade game is a coin-operated entertainment machine, usually installed in public businesses such as restaurants, bars, and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games, and merchandisers...	Artistic Artistic License The Artistic License refers most commonly to the original Artistic License , a software license used for certain free and open source software packages, most notably the standard Perl implementation and most CPAN modules, which are dual-licensed under the Artistic License and the GNU General Public...	Artistic Artistic License The Artistic License refers most commonly to the original Artistic License , a software license used for certain free and open source software packages, most notably the standard Perl implementation and most CPAN modules, which are dual-licensed under the Artistic License and the GNU General Public...	A fast paced, arcade-style, top-scrolling space shooter
CodeRED: Alien Arena CodeRED: Alien Arena Alien Arena is a free, stand-alone first-person shooter computer game based on source code released by id Software. Begun by COR Entertainment in 2004, the game combines a 1950s-era sci-fi atmosphere with gameplay similar to the Quake, Doom, and Unreal Tournament series...	2004	2011	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary
CorsixTH	2009	2011	Business Sim City-building game City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management...	MIT MIT License The MIT License is a free software license originating at the Massachusetts Institute of Technology . It is a permissive license, meaning that it permits reuse within proprietary software provided all copies of the licensed software include a copy of the MIT License terms...	Proprietary (original game data)	An open source clone of Theme Hospital Theme Hospital Theme Hospital is a simulation computer game developed by Bullfrog Productions and published by Electronic Arts in 1997, in which the player designs and operates a hospital. Like most of Bullfrog's games, Theme Hospital is permeated by an eccentric sense of humour. The game is the thematic...
Crimson Fields	2006	2009	TBТ Turn-based tactics Turn-based tactics , or tactical turn-based , is a computer and video game genre of strategy video games that through stop-action simulates the considerations and circumstances of operational warfare and military tactics in generally small-scale confrontations as opposed to more strategic...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Tactical war game in the tradition of Battle Isle.
Crossfire Crossfire (computer game) Crossfire is a free and open source cross-platform multiplayer online computer role-playing gameCrossfire features a tile based graphic system with a pseudo-isometric perspective. All content is licensed under the GNU GPL...	1992	2008	MMORPG MMORPG Massively multiplayer online role-playing game is a genre of role-playing video games in which a very large number of players interact with one another within a virtual game world....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Cube 2: Sauerbraten	2004	2010	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	zlib Zlib License The zlib License is a permissive free software license which defines the terms under which the zlib and libpng software libraries can be distributed. It is also used by other free software packages....	Proprietary Proprietary software Proprietary software is computer software licensed under exclusive legal right of the copyright holder. The licensee is given the right to use the software under certain conditions, while restricted from other uses, such as modification, further distribution, or reverse engineering.Complementary...	Deathmatch style multiplayer gameplay with map editing.
Dink Smallwood Dink Smallwood While compared to other role playing games, Dink Smallwood was praised for its humour, being described as “a spoonful of Zelda,…a dash of Monkey Island and a pinch of Diablo.” The humour was described as the one good aspect of the game and was found quite entertaining...	1997	2008	Action RPG Action role-playing game Action role-playing games form a loosely defined sub-genre of role-playing video games that incorporate elements of action or action-adventure games, emphasizing real-time action where the player has direct control over characters, instead of turn-based or menu-based combat...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Doom	1993		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on 1997, placed under GPL on 1999.
Doom 3 Doom 3 Doom 3 is a science fiction horror video game developed by id Software and published by Activision. An example of the first-person shooter genre, Doom 3 was first released for Microsoft Windows on August 3, 2004. The game was later adapted for Linux, as well as being ported by Aspyr Media for Mac...	2004		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on November 22, 2011
Duke Nukem 3D Duke Nukem 3D Duke Nukem 3D is a first-person shooter computer game developed by 3D Realms and published by GT Interactive Software. The full version was released for the PC . It is a sequel to the platform games Duke Nukem and Duke Nukem II published by Apogee...	1996		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on April 1, 2003.
Egoboo Egoboo (video game) Egoboo is a 3D open source dungeon crawling action role-playing game with current support for Windows XP, Windows Vista, Linux, Mac OS X, and some earlier versions of Windows...	2001	2010	Action RPG Action role-playing game Action role-playing games form a loosely defined sub-genre of role-playing video games that incorporate elements of action or action-adventure games, emphasizing real-time action where the player has direct control over characters, instead of turn-based or menu-based combat...	GPLv2	GPLv2
Enigma	2003	2007	Puzzle	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Fish Fillets NG Fish Fillets NG Fish Fillets NG is a puzzle game. The goal in each level is to find a safe way out for both of the two fish. It's comparable to other sliding puzzle games such as sokoban and klotski. In Fish Fillets the play is complicated by a few additional elements and rules...	2004	2010	Puzzle	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Released commercially as Fish Fillets in 1998. Source released in 2002 under the GPL.
FlightGear FlightGear FlightGear Flight Simulator is a free, open-source multi-platform flight simulator developed by the FlightGear project since 1997....	1997	2010	Flight Sim Flight simulator A flight simulator is a device that artificially re-creates aircraft flight and various aspects of the flight environment. This includes the equations that govern how aircraft fly, how they react to applications of their controls and other aircraft systems, and how they react to the external...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Freeciv Freeciv Freeciv is a multiplayer , turn-based strategy game for workstations and personal computers inspired by the commercial proprietary Sid Meier's Civilization series...	1996	2011	TBS Turn-based strategy A turn-based strategy game is a strategy game where players take turns when playing...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Civilization II Civilization II Sid Meier's Civilization II is a turn-based strategy computer game designed by Brian Reynolds, Douglas Caspian-Kaufman and Jeff Briggs. Although it is a sequel to Sid Meier's Civilization, neither Sid Meier nor Bruce Shelley was involved in its development.Civilization II was first released in... clone.
FreeCol FreeCol FreeCol is a 4X video game, a clone of Sid Meier's Colonization. Released under the GNU General Public License, FreeCol is free and open source software.FreeCol is mostly programmed in Java and should thus be platform-independent...	2003	2011	TBS Turn-based strategy A turn-based strategy game is a strategy game where players take turns when playing...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Sid Meier's Colonization clone.
FreeDoom Freedoom Freedoom is a free Doom engine based first-person shooter game currently under development. The game is currently in an alpha stage and many features are missing, for example some monsters and other sprites are replaced by placeholder images, some levels are missing, and some levels have no music....	1993 (2001)	2011	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	(Not an engine)	BSD	Doom content/resource clone.
Freedroid	2008	2011	RPG Role-playing game A role-playing game is a game in which players assume the roles of characters in a fictional setting. Players take responsibility for acting out these roles within a narrative, either through literal acting, or through a process of structured decision-making or character development...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Two games: 1. FreedroidRPG - FreedroidRPG is an isometric role playing game. 2. FreedroidClassic - FreedroidClassic is a clone of the game "Paradroid" which was released on Commodore 64 in 1985.
Frets on Fire Frets on Fire Frets on Fire is a free, open-source Finnish music video game created by Unreal Voodoo. Players use the keyboard to play along with markers which appear on screen, with the aim to score points, achieve a high point multiplier, and complete a song...	2006	2008	Music Music video game A music video game, also commonly known as a music game, is a video game where the gameplay is meaningfully and often almost entirely oriented around the player's interactions with a musical score or individual songs...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Guitar Hero Guitar Hero Guitar Hero is a music video game developed by Harmonix Music Systems and published by RedOctane for the PlayStation 2 video game console. It is the first entry in the Guitar Hero series. Guitar Hero was released on November 8, 2005 in North America, April 7, 2006 in Europe and June 15, 2006 in... clone.
Frets on Fire X	2008	2009	Music Music video game A music video game, also commonly known as a music game, is a video game where the gameplay is meaningfully and often almost entirely oriented around the player's interactions with a musical score or individual songs...	GPLv2	GPLv2	Frets on Fire fork Fork (software development) In software engineering, a project fork happens when developers take a legal copy of source code from one software package and start independent development on it, creating a distinct piece of software... .
Frogatto & Friends Frogatto & Friends Frogatto & Friends, or simply Frogatto, is a platformer game with adventure-elements, created by a team that includes the founder of Wesnoth, and three of Wesnoth's department leads, and was first released in July 2010...	2010	2011	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Initially for Windows, Linux, and Mac; hold and toss enemies, swim, talk; scripting language included.
Frozen Bubble Frozen Bubble Frozen Bubble is a free software Puzzle Bobble style computer game which is available on several operating systems including Linux, Windows, Mac OS X, the Symbian Series 60, Windows Phone 7 and Android line of smartphones...	2002	2008	Puzzle	GPLv2	GPLv2	Puzzle Bobble Puzzle Bobble , also known as Bust-a-Move, is a 1994 arcade puzzle game created by Taito Corporation, based on Taito's popular 1986 arcade game Bubble Bobble, featuring characters and themes from the original... clone.
Gang Garrison 2 Gang Garrison 2 Gang Garrison 2 is a freeware, open-source, indie video game "demake" of Valve Software's Team Fortress 2. Inspired by the 3D graphics of Team Fortress 2, it takes place in a 2D, 8-bit environment, while retaining its online multiplayer gameplay. The game was started by TIGSource.com users...	2008	2010	Shooter Shooter game Shooter games are a sub-genre of action game, which often test the player's speed and reaction time. It includes many subgenres that have the commonality of focusing "on the actions of the avatar using some sort of weapon. Usually this weapon is a gun, or some other long-range weapon". A common...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	A retro "demake" of Team Fortress 2 Team Fortress 2 Team Fortress 2 is a free-to-play team-based first-person shooter multiplayer video game developed by Valve Corporation. A sequel to the original mod Team Fortress based on the Quake engine, it was first released as part of the video game compilation The Orange Box on October 10, 2007 for Windows... .
Gish Gish (video game) Gish is a 2D PC platform game developed by Alex Austin, Edmund McMillen and Josiah Pisciotta and distributed by Chronic Logic, Stardock and other distributors. A sequel was announced, but subsequently canceled in late 2009 when Edmund left Cryptic Sea....	2010	2010	Action Action game Action game is a video game genre that emphasizes physical challenges, including hand–eye coordination and reaction-time. The genre includes diverse subgenres such as fighting games, shooter games, and platform games, which are widely considered the most important action games, though some...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Open sourced with Humble Indie Bundle Humble Indie Bundle The Humble Indie Bundles or Humble Bundles are a series of game bundles, that are sold and distributed online at a price determined by the purchaser. The games are multi-platform, DRM-free, and independently developed, and buyers can set the revenue split between the developers, charities and... .
Glest Glest Glest is a free and open source real-time strategy computer game developed by a team based in Spain.-Development:Release of version 3.0 added online multiplayer LAN/Internet support. Glest is designed to be moddable, with game elements defined by editable XML files, and includes a map editor.Since...	2004	2008	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	CC-BY-SA Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	3D RTS game with two factions, A.I. and same-platform networking support. Development ceased in 2008. Two forks exist, named MegaGlest and Glest Advanced Engine.
Globulation 2 Globulation 2 Globulation 2 is a real-time strategy game is available in beta as of January 2009 and a final version is due to be released in the future. The game minimizes gaming micromanagement by automatically assigning tasks to units.-Game modes:...	2008	2009	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPLv3	GPLv3	Currently in open beta.
GLtron GLtron GLtron is an open source computer game based on the light cycle portion of the movie Tron. It is released under the GNU General Public License and is available on multiple platforms.-Gameplay:...	2003	2003	Racing Racing game A racing video game is a genre of video games, either in the first-person or third-person perspective, in which the player partakes in a racing competition with any type of land, air, or sea vehicles. They may be based on anything from real-world racing leagues to entirely fantastical settings...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
GNOME Games GNOME Games GNOME Games is a collection of computer games that is part of the standard open-source GNOME desktop environment. It includes the following games:* AisleRiot - - a suite of Solitaire card games....	1998	2010	Various	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	A collection of games accompanying the rest of the GNOME desktop environment.
GNU Chess GNU Chess GNU Chess is a computer program which plays a full game of chess against a human or other computer program.GNU Chess is one of the oldest computer chess programs for Unix-based computers and one of the earliest available with full source code....	1984	2011	Puzzle Computer chess Computer chess is computer architecture encompassing hardware and software capable of playing chess autonomously without human guidance. Computer chess acts as solo entertainment , as aids to chess analysis, for computer chess competitions, and as research to provide insights into human...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
GNU Go GNU Go GNU Go is a free software program by the Free Software Foundation that plays Go. Its source code is quite portable, and can be easily compiled for GNU/Linux, as well as other Unix-like systems, Microsoft Windows and Mac OS X; ports exist for other platforms....	1999	2009	Puzzle Computer Go Computer Go is the field of artificial intelligence dedicated to creating a computer program that plays Go, a traditional board game.-Performance:...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Gunroar			FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	Simplified BSD	Simplified BSD	A futuristic vertical shooter.
Gusanos	2004	2005	Shoot 'em up	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Clone of Liero Liero Liero is a computer game for DOS, first released by Finnish programmer Joosa Riekkinen in 1998. The game has been described as a real-time version of Worms. It has many weapons and sounds from its precursor, MoleZ. 'Liero' is Finnish for earthworm and is pronounced... .
Hedgewars Hedgewars Hedgewars is a turn-based free and open-source strategy game, artillery game, skill game. It is cross-platform and runs on FreeBSD, Linux, Mac OS X, Microsoft Windows, iOS, and Android. It features a single-player mission/tutorial mode, in addition to multi-team multiplayer gameplay...	2007	2011	Artillery game	GPLv2	GPLv2	Worms clone.
Heretic	1994		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPLv2	Proprietary	Game source released on 1999, put under GPL on September 4, 2008.
Hexen Hexen Hexen is a first-person shooter video game developed by Raven Software, published by id Software, and distributed by GT Interactive beginning on September 30, 1995. It is the sequel to 1994's Heretic, and the second game in the Serpent Riders series...	1996		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPLv2	Proprietary	Game source released on 1999, put under GPL on September 4, 2008.
Hexen II Hexen II Hexen II is a first-person shooter developed by Raven Software from 1996 to 1997, published by id Software and distributed by Activision. It was the third game in the Hexen/Heretic series, and the last in the Serpent Riders trilogy. It was made available on Steam on August 3, 2007...	1997		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL	Proprietary	Game source released 2000.
Homeworld Homeworld Homeworld is a real-time strategy computer game released on September 28, 1999, developed by Relic Entertainment and published by Sierra Entertainment. It was the first fully three-dimensional RTS. In 2003, Relic released the source code for Homeworld...	1999		RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	RELIC EULA	Proprietary
KDEGames Kdegames The kdegames package contains games written for the KDE. kdegames provides games in a number of genres including card games, arcade games and board games.- Arcade :*KBlocks - A Tetris clone*KBounce - A JezzBall clone for KDE...	—	2009	Various*	GPLv2	GPLv2	*Collection of games provided with the official release of KDE KDE KDE is an international free software community producing an integrated set of cross-platform applications designed to run on Linux, FreeBSD, Microsoft Windows, Solaris and Mac OS X systems... .
Kernel Panic			RTS	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Real time strategy game powered by the Spring engine.
Kiki the nano bot Kiki the nano bot kiki the nano bot is a puzzle game, basically a mixture of the games Sokoban and Kula World.It is available for Microsoft Windows, Linux, and Mac OS X.- Plot :...	2003	2007	Puzzle	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...	Mixture of Sokoban Sokoban is a type of transport puzzle, in which the player pushes boxes or crates around in a warehouse, trying to get them to storage locations. The puzzle is usually implemented as a video game.... and Kula World Kula World Kula World is a 3D platform-based puzzle game created for the Sony PlayStation, which places the player in control of a Kula beach ball. The main objective of the game is to collect keys which unlock the level exits, as well as coins and jewels along the way... .
Kroz	1987		Maze Maze A maze is a tour puzzle in the form of a complex branching passage through which the solver must find a route. In everyday speech, both maze and labyrinth denote a complex and confusing series of pathways, but technically the maze is distinguished from the labyrinth, as the labyrinth has a single...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Game source released on March 20, 2009.
Lincity Lincity Lincity is a free construction and management simulation game, which puts the player in control of managing a city's socio-economy. Its name is a play on the title of the original city-building game, SimCity, and it was released under the GNU General Public License.- Gameplay :Lincity is a city and...	1999	2004	Business Sim City-building game City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
LinCity-NG	2005	2009	Business Sim City-building game City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Lincity fork Fork (software development) In software engineering, a project fork happens when developers take a legal copy of source code from one software package and start independent development on it, creating a distinct piece of software... .
Linley's Dungeon Crawl Linley's Dungeon Crawl Linley's Dungeon Crawl is a roguelike computer game originally programmed by Linley Henzell in 1995, and first released to the general public on October 1, 1997. Dungeon Crawl Stone Soup, a branch of Dungeon Crawl currently in development, is one of the most popular roguelikes being played today...	1997	2011	Roguelike Roguelike The roguelike is a sub-genre of role-playing video games, characterized by randomization for replayability, permanent death, and turn-based movement. Most roguelikes feature ASCII graphics, with newer ones increasingly offering tile-based graphics. Games are typically dungeon crawls, with many...	LGPL	LGPL	The current version of Dungeon Crawl, Linley's Dungeon Crawl, is one of the most popular roguelike Roguelike The roguelike is a sub-genre of role-playing video games, characterized by randomization for replayability, permanent death, and turn-based movement. Most roguelikes feature ASCII graphics, with newer ones increasingly offering tile-based graphics. Games are typically dungeon crawls, with many... s being played today.
Liquid War Liquid War Liquid War is a unique multi-player action game. It is based on an original shortest path algorithm and core concept by Thomas Colcombet and programmed by Christian Mauduit.-Description:...	1995	2008	Maze games	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	2D game in which you control particles and move them to defeat the opposing side.
Lugaru Lugaru Lugaru: The Rabbit's Foot is the first commercial video game created by Wolfire Games. It is a cross-platform, 3D action game for Microsoft Windows, Mac OS X, and GNU/Linux. It features Turner, an anthropomorphic rabbit with curiously well-developed combat skills.Lugaru was made almost solely by...	2005	2010	Action-adventure game Action-adventure game An action-adventure game is a video game that combines elements of the adventure game genre with various action game elements. It is perhaps the broadest and most diverse genre in gaming, and can include many games which might better be categorized under narrow genres...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project.... v2	Proprietary	Open sourced with Humble Indie Bundle Humble Indie Bundle The Humble Indie Bundles or Humble Bundles are a series of game bundles, that are sold and distributed online at a price determined by the purchaser. The games are multi-platform, DRM-free, and independently developed, and buyers can set the revenue split between the developers, charities and... .
M.A.X.Gold	2005	2011	TBS Turn-based strategy A turn-based strategy game is a strategy game where players take turns when playing...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Remake of M.A.X.
MegaMek MegaMek MegaMek is an open source, turn-based strategy computer game that simulates the Classic BattleTech board game. MegaMek is not licensed by or affiliated with Topps or Catalyst Game Labs, the owners and publishers of the BattleTech line, but is nonetheless a faithful simulation of the game...	2005	2009	TBТ Turn-based tactics Turn-based tactics , or tactical turn-based , is a computer and video game genre of strategy video games that through stop-action simulates the considerations and circumstances of operational warfare and military tactics in generally small-scale confrontations as opposed to more strategic...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Simulates the Classic BattleTech Classic BattleTech Classic BattleTech is a table-top wargame set in the fictional BattleTech universe that simulates combat between futuristic mechanized forces. Originally published by FASA Corporation, the game is now produced by Catalyst Game Labs under license from WizKids... board game.
Micropolis	1989 (2008)	2008	Business Sim City-building game City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management...	GPLv3	GPLv3
Microwar Microwar MicroWar is Space Invaders style arcade game, with a micro-compter industry theme. The game is free, under licence BSD, made with Python and Pygame. It was developed by Pierre-Alain Dorange.- Game play :...	2000	2009	Arcade Arcade game An arcade game is a coin-operated entertainment machine, usually installed in public businesses such as restaurants, bars, and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games, and merchandisers...	BSD	BSD	A 'Space Invaders' style arcade game, in the cruel world of micro-computer industry.
Moria Moria (computer game) Moria is a roguelike computer game based heavily on J. R. R. Tolkien's novel The Lord of the Rings. The game's objective is to kill a Balrog, presumably Durin's Bane, deep within the Mines of Moria. A later port of Moria called Umoria inspired the Angband roguelike game...	1983	1999	RPG Role-playing game A role-playing game is a game in which players assume the roles of characters in a fictional setting. Players take responsibility for acting out these roles within a narrative, either through literal acting, or through a process of structured decision-making or character development... /Roguelike Roguelike The roguelike is a sub-genre of role-playing video games, characterized by randomization for replayability, permanent death, and turn-based movement. Most roguelikes feature ASCII graphics, with newer ones increasingly offering tile-based graphics. Games are typically dungeon crawls, with many...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Myst Online: Uru Live Myst Online: Uru Live Myst Online: Uru Live is an open source massively multiplayer online adventure game developed by Cyan Worlds. The game is the multiplayer component to the 2003 video game Uru: Ages Beyond Myst. Like Uru, Myst Online takes place in 2000's New Mexico, where an ancient civilization known as the D'ni...	2007	2011	MMORPG MMORPG Massively multiplayer online role-playing game is a genre of role-playing video games in which a very large number of players interact with one another within a virtual game world....	GPL	Proprietary
NetHack NetHack NetHack is a single-player roguelike video game originally released in 1987. It is a descendant of an earlier game called Hack , which is a descendant of Rogue...	1987	2003	RPG Role-playing game A role-playing game is a game in which players assume the roles of characters in a fictional setting. Players take responsibility for acting out these roles within a narrative, either through literal acting, or through a process of structured decision-making or character development... /Roguelike Roguelike The roguelike is a sub-genre of role-playing video games, characterized by randomization for replayability, permanent death, and turn-based movement. Most roguelikes feature ASCII graphics, with newer ones increasingly offering tile-based graphics. Games are typically dungeon crawls, with many...	Nethack GPL NetHack General Public License The NetHack General Public License is a copyleft software license primarily used by the roguelike game NetHack. It is certified as an open source license by the Open Source Initiative....	Nethack GPL NetHack General Public License The NetHack General Public License is a copyleft software license primarily used by the roguelike game NetHack. It is certified as an open source license by the Open Source Initiative....
Netrek Netrek Netrek is an Internet game for up to 16 players, written almost entirely in cross-platform open source software. It combines features of multi-directional shooters and team-based real-time strategy games...	1988	2009	Shoot 'em up Shoot 'em up Shoot 'em up is a subgenre of shooter video games. In a shoot 'em up, the player controls a lone character, often in a spacecraft or aircraft, shooting large numbers of enemies while dodging their attacks. The genre in turn encompasses various types or subgenres and critics differ on exactly what...	Various all-permissive	Various all-permissive
Neverball Neverball Neverball is a 3D platform game similar to Super Monkey Ball. It is currently available for Windows platforms, Mac OS X, Linux, FreeBSD, Dreamcast, AmigaOS 4, iOS and Maemo...	2005(?)	2009	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Also includes additional game Neverputt.
Nexuiz Nexuiz Nexuiz is a free first-person shooter video game developed and published by Alientrap Software. It is free and open-source software and is distributed under the GNU General Public License . Version 1.0 of the game was released on May 31, 2005. The current version, 2.5.2, was released on October 1,...	2005	2009	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Forked into Xonotic Xonotic Xonotic is a first-person shooter video game. It is cross-platform, free and open source software. It is a fork of Nexuiz, and is based on the DarkPlaces engine, a heavily modified version of the Quake engine. Gameplay is inspired by Unreal Tournament and Quake, but with various unique elements...  following a commercial licensing agreement by a minority of the development team.
Oolite Oolite (computer game) Oolite is a free and open source 3D Space trading and combat simulator in the spirit of Elite. It is, as the name suggests, Object Oriented [E]lite, written in Objective-C. Among Oolite's several similarities to its inspirational source, the gaming experience is enhanced by the context set in...	2006	2011	Space Sim	GPLv2	GPLv2	Elite Clone
OpenArena OpenArena OpenArena is a free and open source first-person shooter computer game based heavily on the Quake III Arena style deathmatch. The OpenArena project was established on August 19, 2005, the day after the id Tech 3 GPL source code release...	2005	2010	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPLv2	GPLv2	Quake III Clone
OpenCity OpenCity OpenCity is a free open source 3D city-building game. The entire game is written in standard C++ with OpenGL and SDL from scratch.In the game, the player builds a city by marking land as commercial, industrial or residential zones. Those zones depend on each other to grow...	2003	2008	Business Sim City-building game City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
OpenTTD OpenTTD OpenTTD is an open source remake and expansion of the 1995 Chris Sawyer video game Transport Tycoon Deluxe. It is an "urban planning and simulation game" in which the player aims to earn money through transportation of passengers and freight by land, water and air.OpenTTD duplicates most of...	2005	2011	Business Sim	GPLv2	GPLv2	An open-source clone of 'Transport Tycoon Deluxe'
OpenTyrian	2007	2009	Scrolling shooter	GPLv2		The OpenTyrian team ported Porting In computer science, porting is the process of adapting software so that an executable program can be created for a computing environment that is different from the one for which it was originally designed...  the closed-source Pascal Pascal (programming language) Pascal is an influential imperative and procedural programming language, designed in 1968/9 and published in 1970 by Niklaus Wirth as a small and efficient language intended to encourage good programming practices using structured programming and data structuring.A derivative known as Object Pascal...  code of Tyrian to C C (programming language) C is a general-purpose computer programming language developed between 1969 and 1973 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system....  with permission of Jason Emery.
Penumbra: Overture Penumbra: Overture Penumbra: Overture is the first in a series of episodic first-person adventure games developed by Swedish developer Frictional Games. It was originally intended as the first episode of a trilogy. With the announcement of the second episode, Penumbra: Black Plague, it was stated that the second game...	2007	2009	Survival horror with FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...  aspects	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary Proprietary software Proprietary software is computer software licensed under exclusive legal right of the copyright holder. The licensee is given the right to use the software under certain conditions, while restricted from other uses, such as modification, further distribution, or reverse engineering.Complementary...	Developed by Swedish developer Frictional Games Frictional Games Frictional Games is an independent video game company located in Helsingborg, Sweden. The developer comprises a small core team and is led by Thomas Grip and Jens Nilsson. Certain key roles such as Music and Narrative Design are performed by external staff like Mikko Tarmia and Tom Jubert,... , the game blends the genres of survival horror, first-person shooter, and adventure. Open sourced with Humble Indie Bundle Humble Indie Bundle The Humble Indie Bundles or Humble Bundles are a series of game bundles, that are sold and distributed online at a price determined by the purchaser. The games are multi-platform, DRM-free, and independently developed, and buyers can set the revenue split between the developers, charities and... .
Pingus Pingus (video game) Pingus is a free, open source computer game inspired by Lemmings and created by Ingo Ruhnke. It features penguins instead of lemmings. It has been reviewed favorably by CNN.com, about.com, Unix Review, and other publications.-History:...	1998	2007	Puzzle	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Inspired by Lemmings Lemmings (video game) Lemmings is a puzzle computer game developed by DMA Design and published by Psygnosis in . Originally developed for PC and Commodore Amiga, Lemmings was one of the most popular computer games of its time, and several gaming magazines gave it some of their highest review scores at the time... .
Planeshift PlaneShift (video game) PlaneShift is a cross-platform 3D Online Multiplayer Role Playing Game in a fantasy setting. The framework is open source with the server and client released under the GNU General Public License, while the artistic content is covered under a proprietary license. All content, however, is free to...	2001	2010	MMORPG MMORPG Massively multiplayer online role-playing game is a genre of role-playing video games in which a very large number of players interact with one another within a virtual game world....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Free to play MMORPG
PokerTH PokerTH PokerTH is an open source Texas hold 'em simulator for Microsoft Windows, Mac OS X, and GNU/Linux. The game is faithful to the Texas Hold 'em rules and betting system. PokerTH allows for up to ten human players, with computer-controlled players filling in if there are not enough humans...	2006	2011	Card Card game A card game is any game using playing cards as the primary device with which the game is played, be they traditional or game-specific. Countless card games exist, including families of related games...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Project: Starfighter	2001	2008	Shoot 'em up Shoot 'em up Shoot 'em up is a subgenre of shooter video games. In a shoot 'em up, the player controls a lone character, often in a spacecraft or aircraft, shooting large numbers of enemies while dodging their attacks. The genre in turn encompasses various types or subgenres and critics differ on exactly what...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary
Pushover	1992	2008	Puzzle	GPLv3 GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary
PySol PySol PySol is an open source and platform independent computer game that incorporates around 1,000 solitaire games, including card games and other types of single-player games.. It is written in the Python programming language. PySol was originated by Markus F.X.J...	2001	2009	Card games, Patience Patience (game) Patience is a genre of tabletop games, consisting of card games that can be played by a single player. Patience games can also be played in a multiplayer fashion....	GPLv3	Public domain Public domain Works are in the public domain if the intellectual property rights have expired, if the intellectual property rights are forfeited, or if they are not covered by intellectual property rights at all...  and GPLv3
Quake	1996		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on 1999.
Quake II Quake II Quake II, released on December 9, 1997, is a first-person shooter computer game developed by Id Software and distributed by Activision. It is not a sequel to Quake; it merely uses the name of the former game due to Id's difficulties in coming up with alternative names.The soundtrack for Quake II...	1997		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on December 21, 2001.
Quake III Arena Quake III Arena Quake III Arena , is a multiplayer first-person shooter video game released on December 2, 1999. The game was developed by id Software and featured music composed by Sonic Mayhem and Front Line Assembly...	1999		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on August 19, 2005.
Red Eclipse Red Eclipse Red Eclipse is a multi-platform, free, and open source first-person shooter that runs on top of the Cube Engine 2. The game is predicated around multiplayer based action, but can be played offline against bots as well....	2011		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....		Cube 2: Sauerbraten engine.
Rigs of Rods Rigs of Rods Rigs of Rods is an open source, freeware, multi-simulation game which uses soft-body physics to simulate the motion and deformation of trucks. The game is built using a specific soft-body physics engine called Beam, which simulates a network of interconnected nodes and gives the ability to...	2007	2011	Vehicle Sim Vehicle simulation game Vehicle simulation games are a genre of video games which attempt to provide the player with a realistic interpretation of operating various kinds of vehicles. This includes automobiles, aircraft, watercraft, spacecraft, military vehicles, and a variety of other vehicles...	GPLv3	GPLv3
Revenge of the Titans Revenge of the Titans Revenge of the Titans is a tower defense game with real-time strategy elements. The game was developed by Puppy Games. It was one of the five games included in the second Humble Indie Bundle. As a result of the success of the Humble Indie Bundle sale the source code of Revenge of the Titans was...	2010	2011	Tower Defense Tower defense Tower defense is a subgenre of real-time strategy computer games.The goal of tower defense games is to try to stop enemies from crossing a map by building towers which shoot at them as they pass. Enemies and towers usually have varied abilities, costs, and ability costs... , RTS	Custom all-permissive	Proprietary Proprietary software Proprietary software is computer software licensed under exclusive legal right of the copyright holder. The licensee is given the right to use the software under certain conditions, while restricted from other uses, such as modification, further distribution, or reverse engineering.Complementary...	Java based game.
Tenés Empanadas Graciela Tenes Empanadas Graciela Tenés Empanadas Graciela is a turn-based strategy game distributed by several popular Linux distributions. The idea for this free and open source software program came from the board game TEG .In 1996 the Argentine Ricardo riq Quesada started working at the game,...	1996		TBS Turn-based strategy A turn-based strategy game is a strategy game where players take turns when playing...	GPLv2	GPLv2
Racer Racer (simulator) Racer, fully named Racer Free Car Simulation, is a free gaming simulator that runs on Microsoft Windows, Linux, and Mac OS X.Although Racer started out as a driving simulator, it also has features that are usually seen in racing games, such as racing against AI cars, or against human opponents in...	2003	2011 (Proprietary)	Sim Racing Sim racing Sim racing is the collective term for computer software that attempts to simulate accurately auto racing , complete with real-world variables such as fuel usage, damage, tire wear and grip, and suspension settings...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....  / Proprietary	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....  / Proprietary	Only source code of 0.5 version is available, all other releases are closed source.
Rise of the Triad Rise of the Triad Rise of the Triad: Dark War is a first-person shooter video game that was first released on February 17, 1995 and developed by Apogee Software . The members of the development team involved referred to themselves as "The Developers of Incredible Power"...	1995	1995	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on December 20, 2002.
Rocks'n'Diamonds Rocks'n'Diamonds Rocks'n'Diamonds is a scrolling tile-based computer puzzle game that can be described as a combined Boulder Dash, Supaplex, Emerald Mine, and Sokoban clone. It is a freeware and open source video game created by Artsoft Entertainment and designed by Holger Schemel...			Puzzle	GPLv2	GPLv2
Ryzom	2004	2010	MMORPG MMORPG Massively multiplayer online role-playing game is a genre of role-playing video games in which a very large number of players interact with one another within a virtual game world....	AGPL	CC-BY-SA Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	All textures and effects, 3D models, animations, characters and clothing (no music or sounds) are under CC-BY-SA.
Scorched 3D Scorched 3D Scorched 3D is a turn-based artillery game modeled after the classic DOS game Scorched Earth "The Mother Of All Games". Unlike Scorched Earth however, it is available free in its entirety. Also, Scorched 3D adds, amongst other new features, a 3D island environment and LAN and internet play...	2001	2009	Artillery game	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Secret Maryo Chronicles Secret Maryo Chronicles Secret Maryo Chronicles is a free, open source two-dimensional platform game. It was developed and is maintained by the Secret Maryo Chronicles development team, led by Florian Richter ....	2003	2009	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPLv3	GPLv3
Seven Kingdoms Seven Kingdoms (computer game) Seven Kingdoms is a real-time strategy computer game developed by Trevor Chan of Enlight Software. The game enables players to compete against up to six other kingdoms allowing players to conquer opponents by defeating them in war , capturing their buildings with spies, or offering opponents...	1996	2011	RTS	GPL	GPL	Source code released in November, 2008.
Shadow Warrior Shadow Warrior Shadow Warrior, often known by its initials SW, is a first-person shooter computer game developed by 3D Realms and released on May 13, 1997 by GT Interactive. Shadow Warrior was developed using Ken Silverman's Build engine and improved on 3D Realms' previous Build engine game, Duke Nukem 3D...	1997		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Game source released on April 1, 2005.
Simutrans Transport Simulator	1997	2011	Business Sim	Artistic Artistic License The Artistic License refers most commonly to the original Artistic License , a software license used for certain free and open source software packages, most notably the standard Perl implementation and most CPAN modules, which are dual-licensed under the Artistic License and the GNU General Public...		Similar to Transport Tycoon Transport Tycoon Transport Tycoon and Transport Tycoon Deluxe are computer games developed by Chris Sawyer and published by MicroProse in 1994 , and 1995...  and its open source clone, OpenTTD OpenTTD OpenTTD is an open source remake and expansion of the 1995 Chris Sawyer video game Transport Tycoon Deluxe. It is an "urban planning and simulation game" in which the player aims to earn money through transportation of passengers and freight by land, water and air.OpenTTD duplicates most of... . The player must build a profitable transportation system.
Smash Battle Smash Battle Smash Battle is a free open source 2D Platform game. The entire game is written in standard C++ with SDL from scratch.Only a multiplayer mode exists at the time, where two to four players can battle each other.-Gameplay:...	2008	2009	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPLv3	CC Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	Retro 8-bit style platform shooter
Smokin' Guns Smokin' Guns Smokin' Guns is a first-person shooter video game. Smokin' Guns is intended to be a semi-realistic simulation of the American Old West's atmosphere and was developed on id Software's Quake III Arena Engine...	2009	2010	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPLv2	Proprietary	Western-themed first-person shooter using the ioquake3 engine.
Sokoban Sokoban is a type of transport puzzle, in which the player pushes boxes or crates around in a warehouse, trying to get them to storage locations. The puzzle is usually implemented as a video game....	1982	2006	Transport Puzzle Transport puzzle Transport puzzles are logistical puzzles, which often represent real-life transport problems.-Description:In transport puzzles you move persons and/or objects through a given landscape. As in rearrangement puzzles, no piece is ever lost or added to the board...	GPL	GPL	Sokoban is a puzzle which the player pushes boxes or crates around in a warehouse, trying to get them to storage locations.
Solarwolf Solarwolf SolarWolf is an updated clone of the 1983 action/arcade game Solar Fox for the Atari 2600 produced by CBS Electronics which was itself adapted from the 1981 arcade game of the same name....			Arcade Arcade game An arcade game is a coin-operated entertainment machine, usually installed in public businesses such as restaurants, bars, and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games, and merchandisers...	LGPL	LGPL	Clone of Solar Fox for the Atari 2600 Atari 2600 The Atari 2600 is a video game console released in October 1977 by Atari, Inc. It is credited with popularizing the use of microprocessor-based hardware and cartridges containing game code, instead of having non-microprocessor dedicated hardware with all games built in... . A 2-D action game where the player must collect the blocks on every level while avoiding various obstacles.
Sopwith Sopwith (computer game) Sopwith is a sidescrolling shoot 'em up created by David L. Clark of BMB Compuscience in 1984. It was originally written to run on the IBM PC under DOS but there was also a port made near the time of its creation for the Atari 520ST. More recent versions have been ported to even more systems...	1984		Shoot 'em up Shoot 'em up Shoot 'em up is a subgenre of shooter video games. In a shoot 'em up, the player controls a lone character, often in a spacecraft or aircraft, shooting large numbers of enemies while dodging their attacks. The genre in turn encompasses various types or subgenres and critics differ on exactly what...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Spring	2005	2011	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....		Spring is a 3D engine for many RTS games. It also runs several Total Annihilation mods.
Return to Castle Wolfenstein Return to Castle Wolfenstein Return to Castle Wolfenstein is a first person shooter video game published by Activision and originally released on November 19, 2001 for Microsoft Windows. It was made available on Steam on August 3, 2007. The single player game was developed by Gray Matter Interactive and Nerve Software...	2001		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary
Supernova	1987		Text adventure	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Game source released on March 20, 2009.
StepMania StepMania StepMania is an open source and cross-platform rhythm video game and engine. It was originally developed as a simulator of Konami's arcade game series Dance Dance Revolution, and has since evolved into an extensible rhythm game engine capable of supporting a wide variety of rhythm-based game types...	2005(?)		Rhythm game Rhythm game Rhythm game or rhythm action is a genre of music-themed action video game that challenges a player's sense of rhythm. Games in the genre typically focus on dance or the simulated performance of musical instruments, and require players to press buttons in a sequence dictated on the screen...	MIT MIT License The MIT License is a free software license originating at the Massachusetts Institute of Technology . It is a permissive license, meaning that it permits reuse within proprietary software provided all copies of the licensed software include a copy of the MIT License terms...		A DDR Dance Dance Revolution Dance Dance Revolution, abbreviated DDR, and previously known as Dancing Stage in Europe and Australasia, is a music video game series produced by Konami. Introduced in Japan in 1998 as part of the Bemani series, and released in North America and Europe in 1999, Dance Dance Revolution is the...  clone, the player must hit buttons or keys in time with the music.
Steel Storm: Episode I Steel Storm Steel Storm is an independent video game series developed by Kot-in-Action Creative Artel using the free software DarkPlaces engine that were released for Microsoft Windows, Mac OS X, and Linux platforms...	2010	2010	Action Action game Action game is a video game genre that emphasizes physical challenges, including hand–eye coordination and reaction-time. The genre includes diverse subgenres such as fighting games, shooter games, and platform games, which are widely considered the most important action games, though some...	GPLv2 GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	CC-BY-NC-SA Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	An indie top-down arcade shooter with single-player, deathmatch, and co-op.
SuperTux SuperTux SuperTux is a free, open-source two-dimensional platform game. The game was originally created by Bill Kendrick and is maintained by the SuperTux Development Team....	2003	2007	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	2D platformer inspired by the Super Mario Super Mario Bros. is a 1985 platform video game developed by Nintendo, published for the Nintendo Entertainment System as a sequel to the 1983 game Mario Bros. In Super Mario Bros., the player controls Mario as he travels through the Mushroom Kingdom in order to rescue Princess Toadstool from the antagonist...  series.
SuperTuxKart SuperTuxKart SuperTuxKart is a Mario Kart-inspired arcade racing game featuring the Linux mascot Tux. The game was originally conceived as an enhanced fork of TuxKart, but with other internet mascots by the Game of the Month team consisting of Ingo Ruhnke, Charles Goodwin, and several others, eventually...	2006	2011	Racing Racing game A racing video game is a genre of video games, either in the first-person or third-person perspective, in which the player partakes in a racing competition with any type of land, air, or sea vehicles. They may be based on anything from real-world racing leagues to entirely fantastical settings...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Arcade racing game similar to Mario Kart Mario Kart is a series of go-kart-style racing video games developed by Nintendo as a series of spin-offs from its trademark Mario series of platformer adventure-style video games... .
Teeworlds Teeworlds Teeworlds is a free open source fast-paced sidescrolling multiplayer-only computer game. The game features simple cartoon-themed graphics and physics, and relies heavily on classic shooter weaponry and gameplay. The controls are heavily inspired by the First-person shooter genre of computer games...	2007	2011	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	zlib Zlib License The zlib License is a permissive free software license which defines the terms under which the zlib and libpng software libraries can be distributed. It is also used by other free software packages....	zlib Zlib License The zlib License is a permissive free software license which defines the terms under which the zlib and libpng software libraries can be distributed. It is also used by other free software packages....	2D side-scrolling Side-scrolling video game A side-scrolling game or side-scroller is a video game in which the gameplay action is viewed from a side-view camera angle, and the onscreen characters generally move from the left side of the screen to the right. These games make use of scrolling computer display technology...  shooter Shooter game Shooter games are a sub-genre of action game, which often test the player's speed and reaction time. It includes many subgenres that have the commonality of focusing "on the actions of the avatar using some sort of weapon. Usually this weapon is a gun, or some other long-range weapon". A common... .
Thousand Parsec Thousand Parsec Thousand Parsec is a free and open source project with the goal of creating a framework for turn-based space empire building games....	2002	2009	TBS Turn-based strategy A turn-based strategy game is a strategy game where players take turns when playing...	GPL, LGPL		Framework for turn based space empire building games.
Tile World	2002	2006	Puzzle	GPL	GPL	Clone of Chip's Challenge Chip's Challenge Chip's Challenge is a tile-based, puzzle video game for several systems, including the hand-held Atari Lynx, Amiga, Commodore 64, ZX Spectrum, DOS, and Windows . It has also been ported to the TI-84+ calculator and the TI-89 Titanium...
TORCS TORCS TORCS is an open source 3D car racing simulator available for GNU/Linux, FreeBSD, Mac OS X, and Microsoft Windows. TORCS was created by Eric Espié and Christophe Guionneau, but project development is now headed by Bernhard Wymann. It is written in C++ and is licensed under the GNU GPL...			Racing Racing game A racing video game is a genre of video games, either in the first-person or third-person perspective, in which the player partakes in a racing competition with any type of land, air, or sea vehicles. They may be based on anything from real-world racing leagues to entirely fantastical settings...	GPL
Torus Trooper	2004	2004	Scroller	BSD	BSD
Tremulous Tremulous Tremulous is a free and open source team-based first-person shooter with real-time strategy elements.The game features two opposing teams: humans and aliens. Each team must attack the enemy's base and team members, while defending their own base...	2006		FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	CC-BY-SA Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	Alien VS human base building, defending, and attacking opposite team.
Tux Racer Tux Racer Tux Racer is a Free Software 3D computer game starring the Linux mascot, Tux the penguin. In the game, the player controls Tux as he slides down a course of snow and ice collecting herring. Sliding on ice makes Tux go faster, while sliding on snow allows for more maneuverability and sliding on...	2000	2009	Racing Racing game A racing video game is a genre of video games, either in the first-person or third-person perspective, in which the player partakes in a racing competition with any type of land, air, or sea vehicles. They may be based on anything from real-world racing leagues to entirely fantastical settings...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Tux, of Math Command Tux, of Math Command Tux, of Math Command is an open source arcade-style video game for learning mathematics, initially created for Linux. The game-play mechanic is based loosely on that of the arcade game Missile Command, but with comets falling on cities, rather than missiles...	2001	2011	Educational game Educational game Educational games are games that have been designed to teach people about a certain subject, expand concepts, reinforce development, understand an historical event or culture, or assist them in learning a skill as they play...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
UFO: Alien Invasion UFO: Alien Invasion UFO: Alien Invasion is an open source strategy video game in which the player fights aliens that are trying to take control of the Earth. The game is heavily influenced by the X-COM series . It is based on a modified id Tech 2 engine, and runs on Linux, Microsoft Windows, AmigaOS 4, and Mac OS X...	2006	2010	TBТ Turn-based tactics Turn-based tactics , or tactical turn-based , is a computer and video game genre of strategy video games that through stop-action simulates the considerations and circumstances of operational warfare and military tactics in generally small-scale confrontations as opposed to more strategic...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project.... , CC BY-SA, CC Sampling+	Inspired by the old XCOM-Series, but with 3D-combats on surface of earth
UltraStar Deluxe UltraStar UltraStar is a clone of SingStar, a music video game. UltraStar lets one or several players score points by singing along to a song or music video and match the pitch of the original song well. UltraStar displays lyrics as well as the correct notes similar to a piano roll. On top of the correct...	2007	2009	Music Music video game A music video game, also commonly known as a music game, is a video game where the gameplay is meaningfully and often almost entirely oriented around the player's interactions with a musical score or individual songs...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project.... , CC Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	SingStar SingStar SingStar is a competitive music video game series for PlayStation consoles, developed by London Studio and published by Sony Computer Entertainment. 23 English-language instalments of the series have been released for the PlayStation 2, and six versions for the PlayStation 3 have been released... clone.
Unknown Horizons Unknown Horizons Unknown Horizons is a genre-mix of city-building game and real time strategy. It is released under the GNU General Public License and is therefore free software....	2008	2011	City-building game City-building game City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project.... , CC Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S... , OFL	Genre-mix of city-building game City-building game City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management...  and real-time strategy Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....  game inspired by the Anno series.
Urban Terror Urban Terror Urban Terror, commonly abbreviated as UrT, is a free multi-player first person shooter game developed by FrozenSand. Originally a total conversion of id Software's Quake III Arena, FrozenSand released Urban Terror as a free standalone game in 2007 utilizing ioquake3 as an engine...	2000	2011	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary Proprietary software Proprietary software is computer software licensed under exclusive legal right of the copyright holder. The licensee is given the right to use the software under certain conditions, while restricted from other uses, such as modification, further distribution, or reverse engineering.Complementary...	Multiplayer tactical shooter based on the id tech 3 engine.
Ur-Quan Masters, The	2002	2011	Action RPG Action role-playing game Action role-playing games form a loosely defined sub-genre of role-playing video games that incorporate elements of action or action-adventure games, emphasizing real-time action where the player has direct control over characters, instead of turn-based or menu-based combat...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Open Source port of Star Control II Star Control II Star Control II: The Ur-Quan Masters is a critically acclaimed science fiction computer game, the second game in the Star Control trilogy. It was developed by Toys for Bob and originally published by Accolade in 1992 for PC; it was later ported to the 3DO with an enhanced multimedia presentation,...  based on the GPL-released 3DO 3DO Interactive Multiplayer The 3DO Interactive Multiplayer is a video game console originally produced by Panasonic in 1993. Further renditions of the hardware were released in 1994 by Sanyo and Goldstar. The consoles were manufactured according to specifications created by The 3DO Company, and were originally designed by...  source code.
Vdrift VDrift VDrift is a cross-platform, free/open source driving simulation made with drift racing in mind. The driving physics engine was recently re-written from scratch but was inspired by and owes much to the Vamos physics engine. It is released under the GNU General Public License v3...		2011	Racing Racing game A racing video game is a genre of video games, either in the first-person or third-person perspective, in which the player partakes in a racing competition with any type of land, air, or sea vehicles. They may be based on anything from real-world racing leagues to entirely fantastical settings...	GPL
Vega Strike Vega Strike Vega Strike is a first-person space trading and combat simulator, developed for Microsoft Windows, POSIX Unix-like operating systems such as Linux, and Mac OS X systems. Many of the core game mechanics of Vega Strike are indirectly inspired by Elite...	2008	2008	Space Sim	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Elite clone.
Warsow	2005	2011	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary
Warzone 2100 Warzone 2100 Warzone 2100 is an open source real-time strategy and real-time tactics hybrid computer game, originally developed by Pumpkin Studios and published by Eidos Interactive...	1999	2011	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPLv2 GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPLv2 GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project.... , CC Creative Commons licenses Creative Commons licenses are several copyright licenses that allow the distribution of copyrighted works. The licenses differ by several combinations that condition the terms of distribution. They were initially released on December 16, 2002 by Creative Commons, a U.S...	3D real-time strategy game with a unit design system
Widelands Widelands Widelands is a free slow-paced real-time strategy video game under the GNU General Public License. Widelands takes many ideas from and is quite similar to The Settlers and The Settlers II. It is still a work in progress game, with development still required in graphics and bugfixing...	2002	2011	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Widelands is a RTS similar to The Settlers II.
Wolfenstein: Enemy Territory Wolfenstein: Enemy Territory Wolfenstein: Enemy Territory is a free and open source multiplayer first-person shooter video game set during World War II...	2003	2003	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPLv3	Proprietary Proprietary software Proprietary software is computer software licensed under exclusive legal right of the copyright holder. The licensee is given the right to use the software under certain conditions, while restricted from other uses, such as modification, further distribution, or reverse engineering.Complementary...	Game source released on August 12, 2010.
Word Whiz	1988		Educational game Educational game Educational games are games that have been designed to teach people about a certain subject, expand concepts, reinforce development, understand an historical event or culture, or assist them in learning a skill as they play...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Game source released on March 20, 2009.
World of Padman World of Padman World of Padman is an open source first-person shooter computer game available in both English and German. Originally it was a modification for the game Quake III Arena titled PadMod created in the year 2004. After the source code for Quake III Arena was released, the game became standalone...	2007	2008	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Proprietary	Originally a Quake 3 modification. Became stand-alone in 2007, now runs on ioquake3.
WorldForge WorldForge The WorldForge project is producing an open source framework for massively multiplayer online role-playing games. The intent lies in creating a widely used development framework and set of libraries by motivating interested developers to improve on the original code.-History:The WorldForge Project...	1998	2011	MMORPG MMORPG Massively multiplayer online role-playing game is a genre of role-playing video games in which a very large number of players interact with one another within a virtual game world....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	An open source Open source The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...  framework for massively multiplayer online role-playing games.
Wormux Wormux WarMUX is a free and open-source game in the genre of "turn-based artillery games" like Scorched Earth or Worms. The project was started in December 2002 by Lawrence Azzoug Moy as Wormux, and was renamed to Warmux in November 2010...	2002	2010	Artillery game	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	Worms clone.
Xbattle Xbattle xbattle is a multi-player real time strategy game released in 1991 by Steve Lehar and Greg Lesher.The game was originally written for unix systems using the X Window System. Many military-type scenarios can be played out in this game. The board is very generic, consisting of repeated geometric...	1991	1996	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	Custom copyleft
Xconq Xconq Xconq is an open source computer strategy game and game engine. First posted to comp.sources.games in 1987, it is notable as one of the first multi-player games to be released for the X Window System...	1987	2005	TBS Turn-based strategy A turn-based strategy game is a strategy game where players take turns when playing...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	4X 4X 4X games are a genre of strategy video game in which players control an empire and "explore, expand, exploit, and exterminate." The term was first coined by Alan Emrich in his September 1993 preview of Master of Orion for Computer Gaming World...  strategy game engine Game engine A game engine is a system designed for the creation and development of video games. There are many game engines that are designed to work on video game consoles and personal computers... .
XEvil XEvil XEvil is a free software side-scrolling computer game developed by Steve Hardt at M.I.T. The game is a free-for-all deathmatch that pits any player against another player or a computer player...	1994	2003	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....		Fast paced side-scrolling action game.
Xonotic Xonotic Xonotic is a first-person shooter video game. It is cross-platform, free and open source software. It is a fork of Nexuiz, and is based on the DarkPlaces engine, a heavily modified version of the Quake engine. Gameplay is inspired by Unreal Tournament and Quake, but with various unique elements...		2011	FPS First-person shooter First-person shooter is a video game genre that centers the gameplay on gun and projectile weapon-based combat through first-person perspective; i.e., the player experiences the action through the eyes of a protagonist. Generally speaking, the first-person shooter shares common traits with other...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	A fork of the Game Nexuiz Nexuiz Nexuiz is a free first-person shooter video game developed and published by Alientrap Software. It is free and open-source software and is distributed under the GNU General Public License . Version 1.0 of the game was released on May 31, 2005. The current version, 2.5.2, was released on October 1,...
XPilot XPilot XPilot is a multiplayer computer game. It is open source and runs on many platforms. Although its 2D graphics have improved over time, they still resemble the style of Thrust. Gameplay includes Capture the Flag, base defense, racing and deathmatches...	1992		Arcade Arcade game An arcade game is a coin-operated entertainment machine, usually installed in public businesses such as restaurants, bars, and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games, and merchandisers...	GPL	GPL	A multiplayer Asteroids-like game.
X-Moto X-Moto X-Moto is a free and open source 2D motocross platform game developed for Linux, FreeBSD, Mac OS X and Microsoft Windows, where physics play an all important role in the gameplay. The basic gameplay clones that of Elasto Mania, but the simulated physics are subtly different. The project was started...	2005	2011	Platformer Platform game A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles . It must be possible to control these jumps and to fall from platforms or miss jumps...	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
Yo Frankie! Yo Frankie! Yo Frankie! is an open video game made by the Blender Institute, part of the Blender Foundation, originally scheduled for release in August 2008. It is based on the universe and characters of the free film produced earlier in 2008 by the Blender Institute, Big Buck Bunny...	2008		Action-adventure Action-adventure game An action-adventure game is a video game that combines elements of the adventure game genre with various action game elements. It is perhaps the broadest and most diverse genre in gaming, and can include many games which might better be categorized under narrow genres...	GPL/LGPL	Creative Commons
Zero-K Zero-K Zero-K is a free multi-platform open source real-time strategy computer game. Initially based on content from Total Annihilation on the open source Spring Engine, it was forked and all proprietary content replaced, and evolved into a completely new game with unique features...	2010	2011	RTS Real-time strategy Real-time strategy is a sub-genre of strategy video game which does not progress incrementally in turns. Brett Sperry is credited with coining the term to market Dune II....	GPL GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....		Zero-K is a multi-platform real time strategy game powered by the Spring engine.

See also

• Game engine recreation
• The Linux Game Tome
  The Linux Game Tome
  The Linux Game Tome is a website which provides a comprehensive list of games for Linux.- History :The site was started by Tessa Lau in 1995...
  
  
• List of open source game engines
• List of commercial video games released as freeware
• List of freeware games

External links