A terminal interface for Tetris
Phaser is a free and fast 2D game framework for making HTML5 games
Solar2D Game Engine main repository (ex Corona SDK)
HTML5 Phigros chart player/simulator
Open source HTML5 game framework that offers WebGL and Canvas
HTML5 Canvas Tower Building Game
Tetris game powered by Python 3
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
Client-side JS platform for artists, designers and students to express
LayaAir is an open-source 2D/3D engine
Free game engine for development of desktop, mobile, and web games
An HTML5 Game Framework
2D JavaScript Physics Engine
Good-looking and addictive OpenSource games