Crafty
Crafty is a JavaScript game library that can help you create games in a structured way.
Flash JS
JavaScript graphics and games engine with API familiar to Flash one. Just look to examples sources.
Chem
html5 game engine optimized for rapid development
Frozen
Frozen is an open-source HTML5 game engine delivering ease-of-use, rapid development through tooling and modularity.
Canvas Engine
Framework for HTML5 Canvas oriented 2D video games
Blend4 Web
Blend4Web is a tool for interactive 3D visualization on the Internet
Superpowers Core
:octopus: Superpowers — Extensible HTML5 app for real-time collaborative projects
Turbulenz Engine
Turbulenz is a modular 3D and 2D game framework for making HTML5 powered games for browsers and mobile devices.
Lychee JS
Environment-Independent JavaScript engine (HTML5 Canvas, V8GL, WebGL, native OpenGL, NodeJS)
Joy.js
A Joyful 2D HTML5 Game Engine.
Keydrown
A JavaScript key state handler for web apps
Playground
Playground.js is a framework for your javascript based games. It gives you out-of-box access to essentials like mouse, keyboard, sound and well designed architecture that you can expand to your needs.
Matter JS
a 2D rigid body physics engine for the web
Verly.js
:red_circle::wavy_dash::large_blue_circle::wavy_dash::black_circle: Easy to integrate Verlet physics engine. :link:
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.
Limejs
HTML5 game framework for web and iOS
Easystar.js
An asynchronous A* pathfinding API written in Javascript.