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System Reference Document for the Four Points RPG System

The open-source basic rules of the 4C System / Four Color System

An Introductory TTRPG Design SRD

A System Reference Document for Lay On Hands

As if OSR & Storygames had a baby.

A reference and license for the two-trait game system used in the Draculola game.

A System Reference Sheet with the essential rules of The Resistance Toolkit by Grant Howitt & Chris Taylor

A System Reference Sheet with the essential rules of the first Edition of The Black Hack by David Black.

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

Create your own map crawl!

The Cornhole SRD

Class Struggle Game SRD

Third Party License Design Kit & SRD for Down We Go

An SRD for building TTRPGs full of self-expression, teamwork, and difficult choices.

A lo-fi sci-fi RPG SRD

An Uno Card-based RPG System

An SRD for creating DELVE expansions

An SRD for one page solo TTRPGs.

Make your own games using Quietus

Make your own stealth based roleplaying games using the engine behind Night Reign

A Systems Reference Document for Beak, Feather, & Bone

The underlying system for all Soft Horizon games. Free!

An asset to make your own hacks / Un recurso para hacer tus propios hacks

Systems Reference Document and Open Game License

A Toolkit For Creating Single-player Exploration Games