Fast and lightweight JavaScript game engine built on WebGL and glTF
A high-performance, industry-standard 2D physics engine built on Box2D
LayaAir is an open-source 2D/3D engine
A 2D rigid body physics engine for the web
Free, open source game engine online
JavaScript Game Engine
Built to be ease of use, with no programming knowledge, Multi-platform
Egret is a brand new open mobile game and application engine
Free MMORPG Engine. Develop and host graphical browser-based games.