Doom 3 (stylized as D00M³) is a science fiction survival horror first-person shooter video game developed by id Software and published by Activision. 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 OS X. Developer Vicarious Visions ported the game to the Xbox console (now backwards compatible to the Xbox 360), releasing it on April 3, 2005. British developers Splash Damage also assisted in design for the multiplayer elements of the game.