Babylon.js
Babylon.js: a complete JavaScript framework for building 3D games with HTML 5 and WebGL
Phaser
Phaser is a light-weight 2D game framework for making HTML5 games for desktop and mobile browsers
Verly.js
:red_circle::wavy_dash::large_blue_circle::wavy_dash::black_circle: Easy to integrate Verlet physics engine. :link:
Rot.js
ROguelike Toolkit
Limejs
HTML5 game framework for web and iOS
Nipplejs
A virtual joystick for touch capable interfaces.
Easystar.js
An asynchronous A* pathfinding API written in Javascript.
Canvas Engine
Framework for HTML5 Canvas oriented 2D video games
Phina.js
phina.js is game library
Verlet JS
A simple Verlet physics engine written in javascript
Tmlib.js
JavaScript をより使いやすく, より便利に, そしてより豊かに.
Keydrown
A JavaScript key state handler for web apps
Isometric
JSIso - An HTML5 Canvas Tile Engine
Frozen
Frozen is an open-source HTML5 game engine delivering ease-of-use, rapid development through tooling and modularity.
Egret Core
Egret is a brand new open mobile game and application engine which allows you to quickly build mobile games and apps on Android,iOS and Windows.
Chem
html5 game engine optimized for rapid development
Gamejs
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.