Twine, a tool for telling interactive, nonlinear stories
Host your own lobbies and dedicated servers, and mod it
The Ren'Py Visual Novel Engine
A modular Common Lisp game engine
A cross-platform IO layer for an interactive fiction player
A quick and easy to use drag and drop retro game creator
Eva.js is a front-end game engine for creating interactive projects
Fast and lightweight JavaScript game engine built on WebGL and glTF
IsoCity: City building simulation game
Programming eXperience Toolkit
The HTML5 Creation Engine
Open source library for creative expression on the web, desktop, etc.
nvim plugin designed to make you better at Vim Movements
The Ultimate Chess Toolkit
Fantasy computer for making, playing and sharing tiny games
Educational game development environment designed to teach programming
s&box is a modern game engine, built on Valve's Source 2
artisan scope: the world's most trusted roasting software
A game for learning CSS grid layout
A game for learning CSS flexbox
HTML5 Canvas Tower Building Game
2D JavaScript Physics Engine
Play chess from your terminal
A Foundation Model for Generalist Gaming Agents
Digital Estate Planning: The Game