Verly.js
:red_circle::wavy_dash::large_blue_circle::wavy_dash::black_circle: Easy to integrate Verlet physics engine. :link:
Babylon.js
Babylon.js: a complete JavaScript framework for building 3D games with HTML 5 and WebGL
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.
Phina.js
phina.js is game library
Isometric
JSIso - An HTML5 Canvas Tile Engine
Canvas Engine
Framework for HTML5 Canvas oriented 2D video games
Verlet JS
A simple Verlet physics engine written in javascript
Enchant.js
A simple JavaScript framework for creating games and apps
Frozen
Frozen is an open-source HTML5 game engine delivering ease-of-use, rapid development through tooling and modularity.
Turbulenz Engine
Turbulenz is a modular 3D and 2D game framework for making HTML5 powered games for browsers and mobile devices.
Tmlib.js
JavaScript をより使いやすく, より便利に, そしてより豊かに.
Joy.js
A Joyful 2D HTML5 Game Engine.
Flash JS
JavaScript graphics and games engine with API familiar to Flash one. Just look to examples sources.
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.