RPG Maker 2000/2003 and EasyRPG games interpreter
Free and open source real-time strategy game
Magic Another Game Engine
The main repository for the development of the evolution game Thrive
Accuracy-focused XNA4 reimplementation for open platforms
An elegant Go board and SGF editor for a more civilized age
FlightGear Flight Simulator: free open-source multiplatform flight sim
A free transportation simulator game
A strategy game with a high fantasy theme
Chess analysis, training and testing for Windows.
A GNU/Linux operating system accessible for visually impaired.
Arianne is an engine to develop multiplayer online games like Stendhal
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Cooperative multiplayer graphical RPG and adventure game
A free 3D game engine to create games and realtimes scenes for Windows
Wurst Client - versatile Minecraft hacked client
Action RPG that's easy to mod
PC Game Cheats, Trainers, and Mods in One App
C-evo Distant Horizon; Empire Building Game
Game engine supporting many 3D/2D formats and graphic effects
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Open source FPS/RTS Game
Cross-platform real-time strategy game (3D)
A surrealist narrative-driven walking simulator