RPG Maker 2000/2003 and EasyRPG games interpreter
Cross-Platform C++ 2D/3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
dhewm 3 main repository
Vivid is a modern C++ 3D engine using OpenGL4+
mGSTEP port of the Cube game engine
A generic 2D engine for any kind of game
3D Game engine
TurboSphere is an easy to learn and powerful JS based game engine.
3D game engine for C and C++
Cross-platform 2D game engine