Desktop/Android/HTML5/iOS Java game development framework
Gideros Release version
CTFs as you need them
Build Cross-platform Applications
Multimedia asset management and manipulator for Étoilé
TurboSphere is an easy to learn and powerful JS based game engine.
A retro style video game engine for RPGs and adventure games.
An open source skateboard games engine written in C# and .NET.
Game framework on top of Python, Panda3D and Twisted
A generic C++ MUD server featuring a strategy-style hexagon map