Bullet
lastmod 2014-01-11created 2014-01-042 edits
The Bullet Physics Library (Bullet for short) is a dedicated physics library for collision detection and rigid/soft body physics simulation. It is an open-source physics engine led by Erwin Coumans, and it can be used free of charge for commercial purposes under the ZLib license. Its adoption has been growing recently, and it is the best-known physics engine after PhysX and the Havok physics engine.