Make Your Own One-Page RPG
Create and publish your own one-page RPG
COSMIC Toolkit For Role Playing Games
This is a set of mechanics for playing or creating a d20+d6 role-playing game without corporate attachments.
ABC of Alchemy
Simple, intuitive, and system-agnostic alchemy ruleset for any TTRPG.
Glyfi SRD
An SRD for probability building diceless gaming!
Nechrosis: an escalating apocalypse calendar for MÖRK BORG
Optional rules for the Calendar of Nechrubel
The Shit-Black Death: mechanics for virulent contagion in MÖRK BORG
Spice up your game with a little anthrax. Or a lot.
Chronic Migraine Mechanics For 5E
Rules and options to play characters with chronic migraines in 5e
FORGE: Pearlescent - A FORGE House Rule & Procedure Compendium
Expanded procedures & rules for FORGE by zap-forge.itch.io
FORGE: Pearlescent - Wilderness Survival Expanded
Expanded travel & survival procedures & rules for FORGE by zap-forge.itch.io
Micro Mechanics Bundle [PF1e]
Alternative rules for Potions and Size class for Pathfinder First Edition!
The Fugue system
CC-licensed narrative rules for amnesia games
HAXX
A delightfully high-stress Hacking mechanic for Mothership
Soul Snacks
A Fiendish Delight