Open source FPS/RTS Game
0 A.D. is a free, open-source, cross-platform real-time strategy game.
3D-Accelerated open-source DOOM engine
SDL/OpenGL/OpenCL based particle simulation.
realtime 3d surface rendering library
A graphics engine + toolkit.
Opensource RTS game
Pear3DEngine is a modern and modular 3D development framework
Beyond dreams is a 3d solo/mmorpg game currently in developement.
An arcade shooter game with old-school gameplay delivered in a modern.