FU: The Freeform Universal RPG (Classic)
An simple, exciting, narrative RPG that takes only a few minutes to get you into the action.
DIE A HUNDRED TIMES
a d100 system in 2 pages by Kobayashi
Game Lamprey
A universal parasitic RPG supplement.
Unbound
Infinite adventures in numberless worlds
OK RPG!
a simple and versatile roleplaying game
FLING
Flexible and Loose Instrument for Narrative Gaming
You Installed The Wrong DLC And Now You Must Fight Mathomagic Dracula
You installed the wrong DLC and now you must fight mathomagic dracula. Universal TTRPG DLC.
UGIS Rpg
Rules Lite Universal Generic Rpg
SAGAS v0.9 (Setting And Genre Agnostic System)
A universal, math-lite TTRPG
Wisp
24-word narrative generic ttrpg
DIPER
Dynamic Interactive Pool-based Engine Roleplaying
Plunged into the Dark
Start Playing an Action/Adventure Movie in Minutes!
Viator
A rules-lite universal ttrpg system
P2AXIS Free Roleplay
Universal guide for minimalist, FKR-style games.
Perimpar
A minimalist and universal RPG
La Reserva
Traducción: Una de las creaciones más influyentes en el diseño independiente de juegos de rol.
Rapture (Quick Play Ruleset)
Quick Play Ruleset for Rapture TTRPG
Alphabet Soup Universal Roleplaying System
Simple system using alphabet dice
阿羅漢 ｜Arhat [Chinese]
A minimalistic cryptic experimental universal role-playing game.
Verse RPG
A lighter, faster, simpler way to play in any genre you can imagine.
Open Skies
A Universal Card-Based RPG
Platinum RPG System (Core rules)
This is the Core TTRPG universal system for the books on this site.
OHM: Open, Hackable, Minimalistic
Resistance by Name, None in the Game