3D game engine/framework in C, with Luajit and Python bindings now
Old-school 2D game engine
Portable game engine with main focus on point-and-click adventures
An advanced flexible game engine for Java.
Built to be ease of use, with no programming knowledge, Multi-platform
A generic 2D engine for any kind of game
TurboSphere is an easy to learn and powerful JS based game engine.
Role Playing Game Engine
A very small multi-platform game engine for creating desktop games.
Little game background framework in java.