| 3Muse D6 RPG System: Free multigenere RPG system. Currently has fantasy and SuperHeroe rules. |
| Alpha-Zulu Games: Contains to free games: Alternacy, featuring character-driven skill development; and Mnemonic, a minimal rules, memorizable system designed for portability. |
| Alternate Realities: A free universal RPG by Carter Butts, Karim Nassar, and Brian Rayburn. Approx. 88 pages (HTML, MS Word, Postscript). |
| ARM: Minimalist system using logarithmic scales for all game mechanics. |
| Campaign HQ: By Craig Griswold. Contains scenarios, rules, and paper minis. |
| Cosmic Synchronicity RPG: A free RPG that incorporates concepts of Jungian psychology and Robert Anton Wilson's writings to produce a multi-genre cross-worlds playing environment. |
| Cyno's Roleplay: A universal RPG by Chieh Cheng. Approx. 33 pages HTML rules, plus four approx. 10-15 page genre books (fantasy, modern, near-future). |
| DCS: A simple role-playing engine, which can be customised for various game worlds and game types. |
| Draft RPG: A small set of rules suitable for running compaigns of independent backgrounds. Open content license, downloadable in PDF format. |
| Dramats Personae: Free simple role-playing system; there are no statistics, little math, no complex charts of equipment, and no magic. Characters represent skilled, but human (or roughly human), beings and have to use their wits rather than their powers, attributes or magic items to succeed. |
| DUDE Role-Playing Game: This diceless universal determination engine is a one-stat, cinematic, freeform RPG, with several sourcebooks. |
| EGO-Endless Gaming Options: A simple, universal system, with a stable core rule, a complete foundation, and plenty of room for modifications. Free to all. |
| Epitome - Continuous Roleplaying Game: Freeform organic diceless system that puts system mechanics in the hands of the users. |
| Ex Mortis V 1.0 BRPS: Ex Mortis base role playing system. Free to the public. Fully functional RPG. |
| Fantastic Realities: Works with any time period and genre, includes 16 species, magic and monster systems, and realistic rules all of which are optional. |
| FERpg: The "Fast and Easy RPG", a small coin- and dice-based system. Includes two campaign settings. |
| GAME: Skill- and attribute-based rules designed to fit on one page. |
| Generic Roleplaying All Purpose Engine: A free, one page, generic game system. |
| Gestalt - Innovative Roleplaying: Web Site of the Gestalt Roleplaying System. Featuring system rules and scenarios for free download. "Coming soon". |
| GURPS Lite: Free 32 page PDF version of the GURPS rules. "Covers the essentials of character creation, combat, success rolls, magic, adventuring, and game mastering." |
| Harpe: The Hugely Adaptable (Action/Anime) Role-Playing Engine is a free, easy to use universal role-playing game geared towards high-action/anime role-players, but can be used with any RPG style and genre. |
| Heritage: An in-depth diceless system. |
| Hexatome: Exploiting the Number of Six: Light-weight role playing game rule system which emphasizes simplicity as well as the scenario and fluently progressing plots. |
| Hyper: Generic role-playing game. Official site. |
| Impresa Modular Roleplaying System: Modular RPG construction set. Free express rules for download include open collaborative license. |
| Infinite Horizons: Freely available rules for a multi-genre role-playing game and supplements. |
| Kaleidoscope RPG Support Page: An open ended system that adapts to a range of settings and genres with few rules. |
| Nuelow: Series of interlocking games that focus a little more on love (both in the ideal and carnal sense) than those that have proceeded it. |
| OPIGS Supers: One page gaming system for super heroes. |
| OPIGS:: Simple one page gaming system. |
| Oroborus multi-genre RPG: Rules light, point allocation, skill based game from Ragnarok Press. |
| Paradox: A multi-genre system. Basic and Advanced rule books are available free for download. |
| Percentile Dice Game System: A 2 ten sided dice using system released under the Free Gaming License. |
| Player's Labor-saving Utility System: Alan Glvoer's archive of Joe Coleman's PLUS RPG. |
| POLY, a free, customizable system for table top and LARP: A modular system that is adaptable to many styles of play. |
| Prism: A versatile multi-genre free RPG by Frank J. Perricone. It is a modular system originally intended for use with Rolemaster's combat system. Over 100 pages, illustrated. |
| Quasar Role-Playing Game: Public domain rules intended for family-friendly roleplaying. |
| RIP: Diceless system. Includes sample dark future and fantasy campaigns. |
| Role Playing System: Foundations for a game system, reference implementation of that system and resource page to develop game worlds. |
| SAGA: A small system using attribute based dice pools. |
| Shadows: Simple yet powerful roleplaying for all ages. |
| Simple Rules Engine: A two page generic skill and attribute based roleplaying engine, focused on characters and stories. |
| SLUG: (Simple, Laid-back Universal Game) Copyright 1992 & 1993 By Steffan O'Sullivan |
| Storytelling20: A "storytelling-oriented" game with rules available in English and Italian. |
| The Awakenings Rules Engine: TARE, a universal rules engine. The complete basic rules are currently free, with two commercial campaign settings available for it. |
| The Guide to Adventure: Includes fantasy and science fiction campaign settings. |
| The Ladder: A generic rules-lite roleplaying game that utilises neat little character descriptions and a five-rung ladder of task results as the core mechanic. |
| The Osprey Open Source Roleplaying Engine: A point-based, skill-based roleplaying game distributed under an Open Content license. |
| The Window: Flexible, modular rules built around three gaming precepts. |
| ToAd: A model reality kit, where what seems real is real. |
| UniSys-Universal System: A Free-RPG with the goal of being the most played free-RPG in the world. UniSys is a realistic, advanced, fast and detailed universal roleplaying game. . |
| Universal: Features a free, universal roleplaying game system. Also includes supplements for the fantasy and Doctor Who genres. |
Classical
