Gideros Release version
Arianne is an engine to develop multiplayer online games like Stendhal
Game engine supporting many 3D/2D formats and graphic effects
X3D Prototypes for the SMUOS Component
Event driven concurrent framework for Python
3D .NET engine for Windows, Linux, Mac
Single-/multi-player card game Mau Mau (similar to UNO®)
evolution for vegastrike SpaceSim/Combat/Trade game
Java decentralized cross-platform network multiplayer game engine
c# lua bind with unity3d project for game development
Free strategy browsergame engine.
Gives agents personality, moods, emotions and emotional attachments.
A 2D Adventure Game & Engine
Java Gamepad API for multiple platforms
Modular Gaming Open Source Persistent Browser Based Game Framework
Library for creating turn-based games with simultaneous moves.
Open source network game service
A truly extensible cross-platform game engine
A very small multi-platform game engine for creating desktop games.
An extensible development framework for roleplay games.