Phaser is a free and fast 2D game framework for making HTML5 games
HTML5 Phigros chart player/simulator
Solar2D Game Engine main repository (ex Corona SDK)
Open source HTML5 game framework that offers WebGL and Canvas
A web-based IDE for HTML5 game development. Powered by Phaser
HTML5 Canvas Tower Building Game
An easy to use 2D HTML5 game engine written in TypeScript
Desktop/Android/HTML5/iOS Java game development framework
The game engine for everyone
Free, cross-platform 2D game engine powered by Haxe and OpenFL
A fresh & lightweight javascript game engine
3D game engine/framework in C, with Luajit and Python bindings now
Fast and lightweight JavaScript game engine built on WebGL and glTF
Client-side JS platform for artists, designers and students to express
Cross-platform game engine in Rust
The HTML5 Creation Engine
Python MUD/MUX/MUSH/MU* development system
Free game engine for development of desktop, mobile, and web games
LayaAir is an open-source 2D/3D engine
2D JavaScript Physics Engine
The Ren'Py Visual Novel Engine
An HTML5 Game Framework
A node.js plugin to integrate nw.js/electron games with steamworks
Prince of Persia reimplementation written in HTML5 / JavaScript
Compiler from Go to JavaScript for running Go code in a browser