OpenSoldat is a unique 2D (side-view) multiplayer action game
Retro game engine for creating games like it's 1997
A modern, cross-platform Quake game engine based on FitzQuake.
Open source FPS/RTS Game
PAK file editor for Quake engine games
3D-Accelerated open-source DOOM engine
Game engine for playing tomb raider 1 - 5 levels.
Quake C mods and support - SSQC / CSQC
A QuakeWorld package containing everything needed to play QW right now
Smokin' Guns - unofficial release for Mac OS 10.5
Converts log files (with color codes) to readable html files.
A Quake III Arena Mod.
Free and open source FPS based on Quake III Arena