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