Open game and rendering engine packed into a JavaScript framework
Ct.js is a desktop game engine that makes learning programming fun
The Tiny JavaScript Game Engine That Can!
Fast and lightweight JavaScript game engine built on WebGL and glTF
Cocos simplifies game creation and distribution with Cocos Creator
A fresh & lightweight javascript game engine
The flexible game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Open source library for creative expression on the web, desktop, etc.
Full featured MUD server with all the trimmings.
Cross-platform 3D scene editor based on three.js, golang and mongodb
3D C++ Game Engine - yet another open source game engine
2D Game Engine
Web powered cross-platform 3D, WebXR game engine
Built to be ease of use, with no programming knowledge, Multi-platform