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A guide to using Spiral Dice in your games

A System Reference Document for Lay On Hands

A Toolkit For Creating Single-player Exploration Games

A System Reference Sheet with the essential rules of Ben Milton's KNAVE RPG

Create cool 2D games with a free game maker!

The HTML5 2D+3D game maker. Open source and collaborative.

The livecoding environment

Create 2D games in JavaScript, made easier

A tiny game editor you can use on your phone or in your browser

A free, open source, project oriented level editor made for indie game developers by indie game developers.

a little engine for little games, worlds, and stories