Cocos2d-X is a suite of open-source, cross-platform, game-development tools used by thousands of developers all over the world.
2010-2015 cocos2d-x community
Real time physics simulation library
2003-2010 Erwin Coumans
Tiny XML 2
A simple, small, efficient, C++ XML parser that can be easily integrating into other programs.
Original code by Lee Thomason