Desktop/Android/HTML5/iOS Java game development framework
A simple and easy-to-use library to enjoy videogames programming
Open source Cardboard SDK and samples
Orx: Portable Game Engine
Support for legacy OpenGL in core profiles
Cross platform SDK
Cinema Enters Game Console
ZED OS the clone of Windows XP
3D .NET engine for Windows, Linux, Mac
A cross-platform OpenGL based lightweight scenegraph library