Self-hosted CMS platform based on the Laravel PHP Framework
Orx: Portable Game Engine
Examples of procedural geometry for Unity3D C#
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Educational framework for OpenGLES, OpenCL and OpenAL
Java Gamepad API for multiple platforms
Modular Gaming Open Source Persistent Browser Based Game Framework
TurboSphere is an easy to learn and powerful JS based game engine.
A lightweight HTML5 Game Engine
A very small multi-platform game engine for creating desktop games.
Read and write PGN format and test moves for legality.
A small Game Engine project.