MultiLingual Interactive Fiction
Hungry Hero is an open source Flash game built on Starling Framework.
A very small multi-platform game engine for creating desktop games.
Multi-Language Wrapper Collection for the Irrlicht Engine
Delphi-like IDE for cross-platform game development
Cross-platform 2D game engine
The next generation mud is an open-source extensible, programmable mud
A generic C++ MUD server featuring a strategy-style hexagon map
Isometric engine for 2D rendering with XNA and SDL