XNA based game engine completely written in c#
Engines for Batch Games
Cross-platform C framework very compact libraries and tools.
A generic 2D engine for any kind of game
AutoTeach makes kids study and learn in exchange for internet access.
a game library to develop audio games
A 2D Adventure Game & Engine
Basic JAR&ZIP changing script
Java Gamepad API for multiple platforms
3D Game engine
A basic 3D environment with a first-person POV
C++ game libraries plus server.
Multi-threaded 2D Renderer licensed under the Mozilla Public License
multi-kinect system
Modular Gaming Open Source Persistent Browser Based Game Framework
A 2D game engine base on OpenGL and SDL,support for Windows & Linux
TurboSphere is an easy to learn and powerful JS based game engine.
Library for creating turn-based games with simultaneous moves.