Desktop/Android/HTML5/iOS Java game development framework
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
A simple and easy-to-use library to enjoy videogames programming
Cinema Enters Game Console
Asphyre is a cross-platform framework for Delphi and FreePascal.
3D .NET engine for Windows, Linux, Mac
PixelLight is a cross-platform application framework