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An OSR adjacent classless, raceless, levelless, and experienceless game system in 25 pages.

A guide to making solo tarot RPGs

A system reference document (powered by the Maze)

Make your own games using Quietus

Vis-a-Vis is a fast, modular, and competitive RPG system focused on player vs. player interaction.

Systems Reference Document and Open Game License

For TTRPGs you design as you play.

How To Make A Bad Time Game!

Little systems for TTRPG designers

The underlying system for all Soft Horizon games. Free!

A retro, Day-Glo, Nitro, freak-show, rainbow system - grab fistfuls of dice and gamble for epic FX!

Create detailed branched random event generators and games that use a single roll.

A 3d6 TTRPG system that includes templates and logo.

A toolkit for creating card-based solo journaling games.

Build and explore communities and their places

Systems Reference Document and Open Game License

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

A cootie-catcher system built for solo-journaling games.

Fuel Your Stories!

Create your own content based on Firelights

A Systems Reference Document for Beak, Feather, & Bone

Make your own game ignited by Hopes & Dreams.

System reference document for PINKHACK.

A System Reference Document for Lay On Hands

System Reference Document for the Four Points RPG System

A story-first, push-your-luck system for your games

A Toolkit For Creating Single-player Exploration Games

Cleaned up PDF for the wonderful vs M Engine SRD

An Early Middle Ages Roleplaying Game SRD