Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform 2D and 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Sandbox video game with a powerful physics engine
A cross platform Lua based game engine
Modern AS3 Game Engine
3D .NET engine for Windows, Linux, Mac
Open-source, cross-platform, C++ game engine for creating 2D/3D games
2D physics engine for games
An Action Adventure Space Physics Game
A cross-platform OpenGL based lightweight scenegraph library
The Objective-C Interactive Simulation Abstraction Layer