enchant.js

enchant.js is an HTML5 + JavaScript based game engine. It is a standalone library that enables cross-platform application development for PC, Mac, iPhone, iPad, and Android from just 30 KB of source code. enchant.js was developed at Ubiquitous Entertainment Inc.'s Akihabara Research Center, and released April of 2011. Nearly 200 games have been created in its first two months of release, making it the world's most-used HTML5 game engine.