Phaser is a free and fast 2D game framework for making HTML5 games
Solar2D Game Engine main repository (ex Corona SDK)
Cocos simplifies game creation and distribution with Cocos Creator
Open source HTML5 game framework that offers WebGL and Canvas
HTML5 Phigros chart player/simulator
HTML5 Canvas Tower Building Game
Desktop/Android/HTML5/iOS Java game development framework
Free, cross-platform 2D game engine powered by Haxe and OpenFL
An easy to use 2D HTML5 game engine written in TypeScript
A fresh & lightweight javascript game engine
The game engine for everyone
Cross-platform game engine in Rust
Fast and lightweight JavaScript game engine built on WebGL and glTF
The HTML5 Creation Engine
The Ren'Py Visual Novel Engine
Python MUD/MUX/MUSH/MU* development system
3D game engine/framework in C, with Luajit and Python bindings now
Game data file creator "The Challengers" game show presenter
Client-side JS platform for artists, designers and students to express
Free game engine for development of desktop, mobile, and web games
LayaAir is an open-source 2D/3D engine
An HTML5 Game Framework
2D JavaScript Physics Engine
The source code to VVVVVV
Gideros Release version