1 quarkJS 好像是中国人写的，支持一下
Isogenic Engine: The Isogenic HTML5 game engine looks very promising and will be packed with a lot of cool features and other goodies. It aims to enable developers to create isometric tile-based games, 2D side/top scroller games, platform games, 2D strategy games, and multiplayer networked and social games. You can find more information here
LimeJS: This HTML5 game framework was just released a few weeks ago. It has already been used to create games such as Roundball and Zlizer. It can be downloaded for free subject to the Apache License. Click here for more information.
Game Closure: Currently in private beta, this HTML5 game framework will enable developers to create cross-platform, multiplayer games. Click here for more information
Impact: Already released and available for $99, the Impact HTML5 game engine has been used to create some very impressive games (see Biolab disaster and Z-type). Click here to visit their website and for more information
Akihabara: The Akihabara HTML5 game engine allows you to make old-school, pixelated 8/16-bit games that also work on mobile touch devices. Click here for information or to see a handful of cool game demos made with the engine.