Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
The game engine for everyone
2D Game Engine
ZED OS the clone of Windows XP
Children's learning programming language Karel the Robot in 3D
The Atomic Game Engine is a multi-platform 2D and 3D engine
RelaxChess, chess game that makes no search futher needed for a wow
Egret is a brand new open mobile game and application engine
2D physics engine for games
C-Lesh is a game programming language for 2D games.