Cocos simplifies game creation and distribution with Cocos Creator
Solar2D Game Engine main repository (ex Corona SDK)
Multi-platform 2D and 3D game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Orx: Data-Driven Game Engine
Urho3D Game engine
A 2D game engine and level editor
A cross-platform 2D game engine
The Atomic Game Engine is a multi-platform 2D and 3D engine
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
2D physics engine for games
3D Game engine
cross-platform 2d game engine
Cross-platform 2D game engine