Game engine supporting many 3D/2D formats and graphic effects
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Educational framework for OpenGLES, OpenCL and OpenAL
A cross-platform OpenGL based lightweight scenegraph library
Make games with Lego-like building blocks