Cocos simplifies game creation and distribution with Cocos Creator
Vivid is a modern C++ 3D engine using OpenGL4+
A 2D game engine and level editor
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
easy programming language for 2d games