If you want to use box2d, use box2dweb[0]. It's much smaller and faster and is actually up to date. However if you want your game to run smoothly on mobile phon

If you want to use box2d, use box2dweb[0]. It's much smaller and faster and is actually up to date. However if you want your game to run smoothly on mobile phones your best bet is Chimpunk-js[1]. [0] https://code.google.com/p/box2dweb/ https://code.google.com/p/box2dweb/ [1] https://github.com/josephg/Chipmunk-js https://github.com/josephg/Chipmunk-js