Phaser is a light-weight 2D game framework for making HTML5 games for desktop and mobile browsers
a 2D rigid body physics engine for the web
A virtual joystick for touch capable interfaces.
GameJs is a thin library on top of the HTML canvas element. In addition to the drawing functions it has a set of generally helpful modules for game development.
html5 game engine optimized for rapid development
A Joyful 2D HTML5 Game Engine.
Super fast HTML 5 2D rendering engine that uses webGL with canvas fallback
JSIso - An HTML5 Canvas Tile Engine