Gun is a Revisionist Western

Revisionist Western

The Revisionist Western, Modern Western or Anti-Western traces to the mid 1960s and early 1970s as a sub-genre of the Western movie....

-themed video game developed by Neversoft

Neversoft

Neversoft Entertainment is an American video game developer, founded in 1994 by Joel Jewett, Mick West and Chris Ward. Neversoft is best recognized for their line of Guitar Hero and Tony Hawk skateboarding games, known as the Tony Hawk's series...

. It was published by Activision

Activision

Activision is an American publisher, majority owned by French conglomerate Vivendi SA. Its current CEO is Robert Kotick. It was founded on October 1, 1979 and was the world's first independent developer and distributor of video games for gaming consoles...

 for the Xbox

Xbox

The Xbox is a sixth-generation video game console manufactured by Microsoft. It was released on November 15, 2001 in North America, February 22, 2002 in Japan, and March 14, 2002 in Australia and Europe and is the predecessor to the Xbox 360. It was Microsoft's first foray into the gaming console...

, Xbox 360

Xbox 360

The Xbox 360 is the second video game console produced by Microsoft and the successor to the Xbox. The Xbox 360 competes with Sony's PlayStation 3 and Nintendo's Wii as part of the seventh generation of video game consoles...

, GameCube

Nintendo GameCube

The , officially abbreviated to NGC in Japan and GCN in other regions, is a sixth generation video game console released by Nintendo on September 15, 2001 in Japan, November 18, 2001 in North America, May 3, 2002 in Europe, and May 17, 2002 in Australia...

, Microsoft Windows

Microsoft Windows

Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...

 and PlayStation 2

PlayStation 2

The PlayStation 2 is a sixth-generation video game console manufactured by Sony as part of the PlayStation series. Its development was announced in March 1999 and it was first released on March 4, 2000, in Japan...

. The game was released in North America on November 8, 2005, and in mid-to late November in Europe. Since October 13, 2006, the game has also been available to buy on Valve's

Valve Corporation

Valve Corporation is an American video game development and digital distribution company based in Bellevue, Washington, United States...

 content delivery platform, Steam. It was released for the PlayStation Portable

PlayStation Portable

The is a handheld game console manufactured and marketed by Sony Corporation Development of the console was announced during E3 2003, and it was unveiled on , 2004, at a Sony press conference before E3 2004...

 under the title Gun: Showdown on October 10, 2006.