Java Gamepad API for multiple platforms
Multi-Language Wrapper Collection for the Irrlicht Engine
Multimedia asset management and manipulator for Étoilé
C++ game libraries plus server.
An extensible development framework for roleplay games.
Andruill Engine is a GMS (Game Management System) written in PHP.
A 2D Adventure Game & Engine
Atlarius is no longer under development.
AutoTeach makes kids study and learn in exchange for internet access.
A truly extensible cross-platform game engine
An HTML web game platform
Game framework on top of Python, Panda3D and Twisted
Free strategy browsergame engine.
8-bit Graphical API for Java
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C-Lesh is a game programming language for 2D games.