Reverse-engineered reimplementation of Twilight Princess
Compatibility layer for running Windows and Steam games
PSP emulator
Board game engine
External level editor for VVVVVV
First-person shooter game
Free and open-source real time strategy game
Free real-time strategy game like Settlers II
Interactive map generator for Minecraft
2D motocross platform game
Multiplayer oriented port for Doom and Doom II