Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Cooperative multiplayer graphical RPG and adventure game
Air traffic control tower and radar simulator (solo + multi-player)
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Snakes of Apocalypse is a funny multiplayer game
Crossfire RPG Game Weather Patch -- Now a branch on the official repo!
New version of PTkEI2, the cross-platform GUI client for Wolfpack Empi
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
A Multiplayer Bao (Bawo) App for GNU
A maintenance toolbox for cleaning up Space Engineers saves.
breakout/arkanoid clone multiplayers network game at 360°!
Star Trek Web browser game
Advanced Wasteland mission using ACE for Arma II
To create an open source and openly developed mmorpg
Wizard of wor HTML5 remake.
Open Source Virtual World and MMOG Development Platform
A Dungeons & Dragons Miniature Game.