LayaAir is an open-source 2D/3D engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
JavaScript-based game engine designed to empower developers
An easy to use 2D HTML5 game engine written in TypeScript
2D JavaScript Physics Engine
The game engine for everyone
A high-performance, industry-standard 2D physics engine built on Box2D
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cocos simplifies game creation and distribution with Cocos Creator
A fresh & lightweight javascript game engine
The Tiny JavaScript Game Engine That Can!
Ct.js is a desktop game engine that makes learning programming fun
A 2D rigid body physics engine for the web
Open game and rendering engine packed into a JavaScript framework
Eva.js is a front-end game engine for creating interactive projects
Open source library for creative expression on the web, desktop, etc.
Full featured MUD server with all the trimmings.
Free, open source game engine online
Haskell game engine library for roguelike dungeon crawlers
State Management and Multiplayer Networking for Turn-Based Games
Javascript library for making tile based games
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