Game engine allows you to create own MMORPG
Extensive Java chess database libraries.
Chess Database application
A Simple RPG fighting game for teaching Python
A 3D simulator game where you can drive, fly, and sail
Minecraft tools.zip
Modern AS3 Game Engine
3D urban environment renderer : browser-app ; as well as a GTA clone
3D .NET engine for Windows, Linux, Mac
Open-source, cross-platform, C++ game engine for creating 2D/3D games
A public domain cross platform 3D game
Flexible and easy-to-use 2d game engine
A port of Sky3DS Diskwriter for Mac OS X and Linux
Multi-platform game engine similar to old Megaman with a stage editor
MinecraftToolsMac.zip
py 2048, a well know 2048 clone board game
C++11 cross-platform game engine using SDL2
A Multiplayer Bao (Bawo) App for GNU
A game engine written in the D programming language