Odamex is a free, cross-platform, modern client-server Doom engine
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Cross-platform real-time strategy game (3D)
0 A.D. is a free, open-source, cross-platform real-time strategy game.
An unmodified version of the MMORPG Impressive Title by KovuLKD
A free 3d game for PC that does not limit the player. Fight,Build,Gain
A fun realistic multiplayer free-and-open-source first-person-shooter!
Free MMORPG
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
3D Space Station Simulator (inspired by SS13)
PvP, MUD RPG.
Clone of Urban Assault with new Graphics.
Your death sentence awaits...
Free 3D Roguelike action RPG
My fork of Manic Digger
3D FPS Digital Paintball 3 Multiplayer Online Game
Action-packed local multiplayer game