Open source FPS/RTS Game
Realtime raytracer using SIMD on ARM, MIPS, PPC and x86
Retro game engine for creating games like it's 1997
Steam Play compatibility tool that'll play a game with FTEQW.
PAK file editor for Quake engine games
3D-Accelerated open-source DOOM engine
Game engine for playing tomb raider 1 - 5 levels.
Multiple Game System Emulator
Converts log files (with color codes) to readable html files.
Tool collection for mapping for Quake 3 based games