Odamex is a free, cross-platform, modern client-server Doom engine
3rd Party Video Games Developer: MetalManGames, titles of games
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Merges WAD files for Doom engine games.
Space shooter style game arcade version - Games/Entertainment Software
first person shooter, space invader
A fun-filled new take on the casual first person arena shooter.
An old-school first person shooter from classic Amiga computers
3D. Destroy icebergs & enemies in the dark cold seas of the future.
Free and open source FPS based on Quake III Arena
Game engine supporting many 3D/2D formats and graphic effects