Find your next system.

Absurd, diceless space comedy driven by secret bids and shared narrative power.

Heroic d20 fantasy where characters contribute stories to the world: unique qualities, backgrounds, and relationships combine with dynamic combat and tools for original creation.

A setting-neutral system using one six-sided die and optional rules modules.

A microgame framework derived from 2400 that prioritizes description and fictional positioning, with polyhedral dice, a compact SRD, and templates for designing new games.

Modiphius’s multi-genre engine for cinematic action, using pools of d20s, successes, Momentum, and GM resources adapted to the needs of each individual game.

A generic system combining advantages and limited resources to resolve actions, with a token-based second edition and quick-start rules available on the publisher’s website.

The original ACKS fantasy SRD, covering adventures, strongholds and domains.

A historical generic engine from Gold Rush Games for adventures in different genres using a shared foundation for characters and rules.

A universal diceless game in which characters choose how much effort to commit.

A superhero game with ranked abilities, percentile checks and an expanded 2023 rules set.

A compact GRAmel roleplaying game with separate player and game-master guides.

Paragon is AGON’s heroic-adventure engine, adaptable to other settings through trials, conflicts resolved with few rolls, and dedicated playsets.

A modular science-fiction game from Sasquatch Game Studio using a control die and a situation die.

An action game inspired by videogames and animation, combining personal scenes with dramatic battles featuring elemental powers, bonded weapons and summoned creatures with distinctive abilities.

Monster agents of DIVISION investigate supernatural phenomena to prevent the apocalypse while their emotions, relationships and destructive powers test the bonds that hold them together.

Stories of survival, community, and power in a devastated world, with protagonists defined through playbooks and moves that launched the Powered by the Apocalypse tradition.

A fantasy game in which heroes race a real-time clock to prevent an apocalypse.

Monte Cook’s alternative fantasy game builds on a d20 framework, introducing distinctive peoples, classes and magic that reinterpret familiar adventuring roles and character archetypes.

Hermetic magi, companions, and grogs build a covenant in Mythic Europe through magical research, adventures, supernatural traditions, and the passing years.

A free Genesys introductory adventure set in the Twilight Imperium galaxy.

A fantasy game using custom dice to resolve physical, mental and social conflicts.

A reusable d6 resolution engine with half-dice increments and a fixed target of 15.

A lightweight fantasy roleplaying game inspired by early adventure games, designed for approachable character creation, exploration, encounters, and ongoing campaigns with a traditional feel.

The historical Basic Roleplaying SRD published under Chaosium’s own BRP Open-Gaming License. It is separate from the current BRP Universal Game Engine ORC material.

A cyberpunk game about humans, robots, clones and psychics, using pools of d6s.

An open-source grunge-fantasy project designed for quick play with little preparation, providing editable source files so groups can modify rules and regenerate their own documents.

Simple solo game.

Black Flag is a fantasy engine built on the 5e tradition, with Luck and Talents; Tales of the Valiant is its reference game.

A career-based fantasy game with inventory pressure and reactive combat.

A game of criminal crews, dangerous scores and faction rivalry in haunted Doskvol.

An action-focused toolbox using a d10 for checks and a separate d4 for twists.

Open SRD of the survival horror game of the same name.

A multi-genre percentile rules engine for fantasy, horror, science fiction and other adventures.

An invention-focused game adaptable to different eras and genres.

Fantasy roleplaying driven by characters’ beliefs and difficult choices.

A card-based rules engine whose characters grow by improving their decks.

Exploration, strange forests and dangerous ruins with light, classless rules.

A compact toolkit for designing roleplaying games around four-sided dice.

Superpowered gangsters and law enforcers in the Prohibition-era United States.

Dieselpunk war and supernatural intrigue using the Magnetic Variant of the D6 System.

A solo exploration toolkit using a map made from playing cards.

Troll Lord Games’ fantasy adventure game uses the SIEGE Engine, focusing checks on prime attributes while supporting the conversion of adventures from related fantasy games.

A classic-tradition science-fiction reference built around 2d6, supporting space campaigns and original material created using the Cepheus Engine rules and publishing framework together.

A free and open generic RPG by Fari Games.

A technofantasy role-playing game with pools of six-sided dice.

A retroclone of Golden Heroes.

A freeform role-playing system for solo or shared storytelling.

Mongoose’s historical adaptation of Conan presents sword-and-sorcery adventures and must be distinguished from later roleplaying games using the same franchise through different publishers and systems.

Tactical alien defence with percentile tests and the OMEGA agency.

A compact generic roleplaying system using dice pools and bonuses to resolve actions.

A science-fiction exploration game in the Coriolis line. Crews leave a declining Ship City to explore dangerous ruins and recover artefacts in the Great Dark.

Coriolis: The Third Horizon follows spacefarers among ancient portals, rival factions and mysterious powers. It is distinct from Coriolis: The Great Dark.

The historical version of Cortex combines attributes, skills, and different-sized dice for adventures across different genres and worlds.

A compact, setting-neutral game built with Cortex Prime.

A multi-genre toolkit combining descriptive traits, different-sized dice, and rules modules to build the play experience a group wants.

Indigenous science fantasy in an alternate future without colonisation of the Americas.

A small fantasy game with 2d6 tests and generated spells.

Minimalist Lovecraftian horror focusing play on investigation and encounters with the incomprehensible, using a rules-light approach designed to be explained and started very quickly.

XCOM-inspired sci-fi game of alien invasions, interns who are giant rats, and the megacorps who employ them. Running on LUMEN.

A multi-genre engine featuring concept-defined characters, graded difficulty, and resources that let players choose how much effort to commit to each challenge.

The historical reference for D&D third edition and its 3.5 revision: adventuring fantasy with character classes, spells, monsters, and the d20 rules framework.

RESTful API that returns SRD data for endpoint names like `spells/?name=Acid+Arrow`.

An archived reference to D&D 5e tools in the Astral virtual tabletop.

The fifth-edition rules foundation for fantasy adventures: heroes from different classes explore dangerous places, negotiate with other characters, and confront extraordinary monsters together.

SRDs and other Open Game Content hosted on MediaWiki.

Another Runequest-like SRD.

Two historical d20 Modern supplements extend adventures into science fiction and earlier eras while retaining the d20 rules framework and their original edition dependencies.

The historical adaptation of the d20 framework to contemporary adventures, with characters, skills, and equipment for stories beyond the system’s traditional medieval fantasy setting.

Modern fantasy expansion material from the Arcana section of the d20 Modern SRD.

Play D&D 3.5e on Foundry VTT.

A modern role-playing system using pools of six-sided dice.

Pulp science-fiction heroes who gain power by taking greater risks.

Heroic fantasy with a dice-pool method that balances talent against challenge.

A complete 2010 fantasy retroclone, from dungeon exploration to immortality.

A historical fantasy roleplaying game that combines a classic D&D rules lineage with selected Rolemaster-inspired procedures.

Undercover agents investigate and contain supernatural threats while conspiracies, cosmic horror, and the personal cost of their operations erode their lives.

Another OD&D retroclone with an SRD.

Comic occult missions for the Brotherhood in the 2015 prerelease beta.

Custom dice designed to be used with FATE, but adaptable to other systems too.

A solo role-playing game played in your head while falling asleep.

Play D&D 5e on Foundry VTT.

A free fantasy and historical roleplaying system built on twelve-sided dice, combining manoeuvre-driven combat, distinct priestly powers and magic that supports inventing new spells.

Dungeon fantasy with shared authorship: adventurers explore, fight, and find treasure while players can introduce facts and help steer the fiction through their successes.

A BIONICLE G1 fan role-playing game with d20 checks and custom powers.

A percentile engine for modern espionage, investigations and action.

A fantasy adventure game of dangerous journeys, magic and exploration. Characters use a d20 skill system with fast, hazardous combat. The current Swedish game is also called Drakar och Demoner.

An engine for emotional conflicts and relationships, used by Hillfolk.

A service of descriptive text, audio and maps for tabletop sessions.

Old-school adventure fantasy with strange secrets, dungeons, and danger, presented as a fast-moving game with a broad range of supporting third-party adventures and supplements.

Fantasy adventure driven by the fiction, character moves and shared discoveries.

A fantasy rules reference with narrative threats and polyhedral character dice.

The fourth edition of D&D, with character powers, tactical encounters and skill challenges.

A fan-made fantasy and science-fiction mash-up using d10 roll-and-keep tests.

A compact fantasy RPG with d20 roll-under tests and quick dungeon adventures.

A Polish Renaissance-fantasy RPG about inheritance, power and trust.

Greg Porter’s generic system combines point-built characters, six-sided dice, and tools for fantasy, espionage, science-fiction, or superhero campaigns at different levels of capability.

Class-and-level fantasy based on the Effect Engine, featuring traits, backgrounds, and specialties; Essence collects the core rules for characters progressing through levels one to ten.

Transhuman science fiction of conspiracy and horror: digital identities, interchangeable bodies, and existential threats raise questions about being human after a devastating catastrophe.

Debt-driven treasure hunting in a strange city entering its electric age.

A free introduction to ELEMENTAL’s cinematic, genre-flexible d6 rules.

A space-adventure RPG based on Frontier’s Elite Dangerous universe.

Tactical guns, blades and supernatural powers in the post-rapture city of New Enoch.

Michael Downey’s fantasy roleplaying rules, published with an author’s permission notice covering his original content.

Cyberpunk espionage and magic in late-21st-century San Francisco.

A genre-flexible system combining separate ability and skill dice.

Evil Genius Games’ contemporary action RPG supports adventures in modern settings, with a dedicated programme for publishing compatible supplements and adventures under its own agreement.

A real-time political crisis game of persuasion, private agendas and presidential decisions.

A d6-using system.

Old-school fantasy and sword-and-planet options built from several d20 traditions.

A retroclone of the original 1974 Dungeons and Dragons.

Crafty Games’ fantasy roleplaying game uses Mastercraft to support customized heroes and campaigns through a rules framework descended from the d20 tradition.

Fantasy exploration and tactical encounters using pools of custom six-sided dice.

An early story-focused Fudge variant with aspects and phased character creation.

Story-focused Fudge with aspects, a skill pyramid and characters built through life phases.

A compact, multi-genre version of Fate using approaches, aspects and Fate points.

A compact version of the narrative Fate system for stories about capable characters, offering a generic rules framework adaptable to different worlds and campaign genres.

A multi-genre narrative engine with skills, aspects and Fate points for capable characters and shared stories.

Raymond Turney’s fantasy RPG, developed from his experience co-creating RuneQuest.

Basic-style dungeon adventures for characters of levels one to five.

A paranormal military action game inspired by Metal Gear Solid and The A-Team, with a rules lineage through World of Dungeons.

A flexible trait-based RPG using two six-sided dice multiplied together.

Flexible, genre-neutral adventure with situation-based d6 pools and player-facing combat.

GMless stories about a fellowship pursuing a shared goal or falling apart.

Old-school fantasy rebuilding the advanced second-edition style of adventuring.

A fantasy exploration and survival game in a cursed land. Adventurers travel, discover ruins and can establish their own stronghold.

A d20 design framework for building class-and-level roleplaying games.

A universal tactical system using opposed d10 pools and energy spent on actions.

The framework derived from the Blades in the Dark SRD, featuring risky actions, consequences, and tools for creating original games identified as Forged in the Dark.

(archived page) a 2d6 system with wagers.

A superhero roleplaying toolkit with percentile rolls and a four-colour result table.

A very simple fantasy roleplaying game for first-time players.

A generic freeform roleplaying system using descriptive character traits and six-sided dice. This entry covers its first edition.

The beta of Freeform Universal’s second edition. It is a distinct rules release with a separate copyright notice.

A science-fiction heist RPG where a growing deck represents your freelancer.

A genre-flexible power-fantasy system with optional alternative resolution methods.

A lightweight, adaptable roleplaying engine that describes abilities with words, helping groups create characters and resolve actions without imposing a particular setting or world.

A compact, genre-neutral Fudge game using descriptive traits and four Fudge dice.

A solarpunk 2d10 system that has several variants of the core rules.

A universal RPG combining Hero System and Interlock approaches.

A generic action engine where mixed dice turn into multiple successful actions.

Grimdark gang roleplaying in a hostile futuristic megacity.

A generic narrative-dice system for fantasy, science fiction and other genres, where individual rolls can introduce meaningful changes to the unfolding story and its complications.

Railway ghost hunters protecting electric trains across haunted deadlands.

An minimal 2d6 system.

Hackable old-school fantasy with a common adventurer base and modular class templates.

Mythic fantasy about divine heroes reshaping a broken world through Words of Creation, supernatural confrontations, and tools for running ambitious open-ended campaigns together.

A generic, old-school percentile skill engine, providing a foundation for characters and adventures in different settings.

A horror roleplaying game combining cosmic and bodily horror. Its creator also provides a separate kit for third-party material.

Cinematic fantasy driven by character goals, with fast narrative action.

A roleplaying reference designed for investigative stories, where abilities help uncover clues and the focus is understanding the mystery and deciding what to do.

Anime-inspired mecha combat balancing fast play, tactics and energy management.

A compact introduction to GURPS Fourth Edition’s universal roleplaying rules.

Old-school fantasy with opposed combat rolls and a second-by-second action count.

A solo haunted-house investigation using playing cards to simulate several kinds of dice.

Universal roleplaying with roll-and-keep d10 pools, wounds and timed actions.

Classic fantasy exploration with d20 checks, skill dice and resource management.

A historical generic-system reference now identified in its author’s catalogue as Hexagon.

Tactical cyberpunk about proxies, cybernetics and dangerous work in 2052.

Cinematic space adventure based on fifth edition, featuring crews, alien species, robots, starships, and gambits that replace fantasy magic with technology and action.

Cinematic space fantasy with summed d6 pools and a volatile Destiny Die.

Polish dystopian science fiction about street survival under total surveillance in 2045.

A two-page supernatural game about software engineers hunting Alaska’s Iliamna monster.

Small sword-and-sorcery adventures with three skill dice and dangerous ancient magic.

Fast adventure across genres with a scene target, effort dice, timers and loot.

A lightweight fantasy roleplaying game descended from Into the Odd, with substantial changes to its rules.

Chris McDowall’s adventure game is associated with a compact rules engine and Mark of the Odd, its specific route for creating derivative games and material.

Universal, skill-based roleplaying with percentile checks, location wounds and modular magic.

Industrial fantasy where firearms, machines and progress meet aether magic.

Classic fantasy adventuring in the style of 1975, with classes, levels and referee rulings.

Dark-fantasy adventures driven by sworn vows, playable solo, cooperatively, or with a game master, using oracles and moves to generate unfolding events and consequences.

A standalone science-fiction evolution of Ironsworn, using vows, space exploration, and planet and faction generators for play with or without a game master present.

Detailed universal roleplaying with point-built characters and a distinctive four-die roll.

Hard science-fiction survival among Jupiter’s colonies as supplies and infrastructure fail.

Survival adventures across an infinite multiverse of different eras and realities.

A classless old-school fantasy toolkit where equipment defines each adventurer’s role, combining concise rules, d20 tests and a collection of one hundred level-less spells.

An exploration-driven fantasy game and worldbuilding toolkit with classless characters, slot-based inventory, and procedures for wilderness journeys, dungeon expeditions and activities between adventures.

Dark fantasy about outcasts in a land ruled by cruel gods.

Classic fantasy adventures focused on dungeon exploration, monster encounters, and recovering treasure, with straightforward rules and compatibility with older adventures and supporting game material.

John Harper’s short fantasy adventure of fugitives travelling aboard an airship, with ready-made characters, keys and dice-pool rules.

A science-fiction roleplaying game of mech pilots, with narrative play and tactical combat. Player material and third-party publication terms have separate scopes.

Fantasy expeditions driven by time, resources and the ambitions of an adventuring company.

A percentile-skill rules framework for fantasy adventures and other contexts, published by Mongoose with an open-content declaration covering the text of the core rulebook.

A samurai-inspired fantasy roleplaying project using the Bloom system. Its rules permission does not confer rights to Legend of the Five Rings material.

An expanded fifth-edition fantasy game with additional options and tools, preserving compatibility with 5e material while providing a route for publishing original compatible supplements.

Investigate supernatural threats in a Roman Empire that never fell.

A Rust command-line utility that generates licence files, including support for Open Game Content notices. The original collection labels it as Go, but its repository is a Rust project.

Pulp fantasy with flying ships, detailed wounds and journeys to other planets.

Solve supernatural cases on the boundary between everyday Britain and its Hidden World.

A solarpunk roleplaying game drawing on Blades in the Dark and 24XX, with linked introductory rules.

A Pickpocket Press fantasy game built around lower-powered, dangerous adventures, preceding the later Tales of Argosa rules and retaining its own distinct publishing licence.

Magical cats help their humans and protect their hometown in adventures for all ages.

An SRD for a system based on what is colloquially known as "tactical Rock-Paper-Scissors".

Young superheroes balance saving the city with relationships and a changing sense of identity.

Mouse-scale fantasy adventures with a dedicated rules line and reference document, whose reuse permission is distinct from the separate licence for compatible third-party supplements.

Fantasy exploration and survival with compact 2d6 rules, quick characters, and extensive random tables for creating magic, creatures, cities, and old-school adventures together.

Heroic fantasy inspired by Greek myth and early adventure games.

Detailed science fantasy and space opera in the Guild Space universe.

A family of games reducing d20 to its essentials, with concise character creation, combat and magic designed to reuse existing adventures, monsters and fantasy worlds.

A simple d6 based game that spawned many hacks.

Rebels, intrigue and metal-fuelled magic in Brandon Sanderson’s Scadrial.

Supernatural drama about teenage monsters, identity, relationships, and power, using Apocalypse World-inspired rules and characters that embody the emotional tensions of growing up together.

Rules-light apocalyptic dark fantasy featuring desperate characters, accursed tombs, and lethal dangers in a decaying world steadily approaching its final days of existence.

Dieselpunk corporations and occult war against the Dark Legion across the solar system.

A superhero game for creating original heroes, powers, and villains, with third-edition rules and a specific publishing route for adventures, settings, and compatible characters.

Ashok Desai’s universal roleplaying system, published for adapting to different genres and settings. Its core book is distinct from the Myriad Lite software implementation.

Heroic action across genres, from mythic warriors to superpowered adventurers.

A multi-genre d100 game with skills shaped by culture and profession, detailed combat, magic, superpowers and vehicles rather than character classes or levels.

Mutants, magic and scavenged technology in a lurid post-apocalyptic future.

An asynchronous roleplaying game of fictional blogs, rival characters and public challenges.

Cyberpunk horror material for use with Mothership, currently in beta.

A designer’s toolkit for games where risky actions spend a scarce resource and consequences matter.

A fantasy roleplaying game with the author’s own conditions for noncommercial derivative work.

Classic exploration fantasy with rules organized for use at the table and an extensive range of adventures, monsters, and options for player characters.

A fast static reader collecting several open SRDs (D&D 5.2.1/5.1, Daggerheart, BRP) as clean HTML, with public Markdown sources and a complete Russian translation.

One-roll resolution and customisation options, represented here by the ORE Toolkit.

An open system that uses a d6-d6 as core.

A classless, point-based system with flexible genres and optional dice variants.

A multi-genre game combining flexible characters, exploding dice, and tactical choices, with online rules and a dedicated community license for publishing derivative material.

A historical, genre-neutral West End Games engine that resolves actions with pools of six-sided dice and underpins several variants.

A skill-based adventure system that streamlines the d100 tradition, combining percentile checks, combat and magic with a reusable system reference document.

A short Polish horror game about fleeing an unstoppable monster.

A detailed modern-action game with tactical choices and extensive equipment.

A fantasy roleplaying system drawing on the tactical fourth-edition D&D tradition.

The Organic Rules Components fantasy system by Vajra Enterprises. Its abbreviation is unrelated to the later ORC game licence.

The second-generation OSRIC reference recreates first-edition advanced fantasy adventures with character classes, magic, monsters, and exploration of dangerous dungeons and wilderness environments together.

The OSRIC revision reorganizes classic advanced fantasy for easier learning, adding explanations, examples, and a new line of rulebooks and supporting adventure material.

A Polish science-fiction campaign about exploring alternative Earths.

Paizo’s adventure fantasy with extensive character options: explore ruins, survive traps, face political intrigue, and seek treasure using rules derived from the d20 tradition.

The original version of Pathfinder second edition: fantasy adventures with detailed character building, cooperative tactics, and a flexible three-action system for character turns.

Pathfinder second edition’s Remaster retains its tactical fantasy foundation while reorganizing the core books with changes to presentation, rules terminology, and the licensing framework.

Twenty year old Java application with tons of Open Game Content in its generator.

Fantasy roleplaying with moves, teamwork and success levels altered by advantage.

Play Pathfinder 1e on Foundry VTT.

Play Pathfinder 2e on Foundry VTT.

A flexible, accessible game using opposing pools of white and black six-sided dice.

Old-school medieval fantasy with simple dice, dangerous dungeons and open-ended rulings.

A planar fantasy rules project combining traits, dimensions and exploding roll-and-keep dice.

A Fate-derived experiment using polyhedral approaches and dice pools instead of ordinary Fate dice.

A family of games inspired by Apocalypse World rather than one unified rulebook: each creator determines how their own stories, moves, and rules work.

A stat-free, cooperative engine where pushing another die can turn a costly success into disaster.

A science-fiction roleplaying system with tables for detailed play and the author’s own reuse conditions.

An introductory fantasy roleplaying game. Its separate creator resource provides text under specified reuse terms.

SRD for a modern version of HeroQuest (a d20 system with "masteries").

Dario Nardi’s d20 fantasy game brings magic and electrotech together, offering varied character options and adventures ranging from traditional fantasy to science fantasy.

A generic Spanish-language roleplaying system. The 3.0 book uses three ten-sided dice and keeps the middle result; Micro RyF is a separate condensed version.

Cosmic horror with 2d6, professions and sanity. Original open rules from 2018.

Renaissance is a d100 engine for early modern adventures; Clockwork & Chivalry second edition applies it to a fantastical version of Civil War England.

A multi-genre percentile system resolving scenes as extended conflicts, with a choice of basic or detailed combat, skill-based characters, and extensively customizable powers.

A compact, genre-flexible game designed for quick characters and improvised adventures.

An old-school fantasy project with a surviving official character-sheet preview.

A six-rule microgame where characters discover new skills through play.

A reference document in the RuneQuest rules tradition, with an OGL notice and edition-specific content boundaries.

Nine distinct small roleplaying engines, collected with separate licensing notices.

A dice pool based universal system.

A generic engine of actions and consequences, playable with d10s or cards and supported by genre-specific subsystems for fantasy, science fiction and pulp adventures.

A flexible narrative engine using custom symbol dice and freely described character elements.

An action-focused adventure system adaptable to many settings, using different die sizes for abilities and luck resources that help its leading characters.

Minimal dungeon fantasy that describes adventurers with compact monster-style statistics.

Dark fantasy about desperate survivors facing a world’s approaching destruction.

The introductory rules and publication guidance for Shadowdark, a fantasy adventure game using twenty-sided dice.

An all-ages storytelling game where each character has a troublesome invisible Shadow.

A portable roleplaying game designed for storytelling while walking outdoors.

A car-racing roleplaying game about competition, vehicle tuning and life between races.

An open source 3d6 system.

Science fantasy on an alien world shaped by strange peoples and ambient energy.

Matt Jackson’s compact roleplaying game designed to support solo play.

Eero Tuovinen’s universal system develops the rules of The Shadow of Yesterday, separating them from that game’s setting to support stories in other genres and worlds.

An introductory old-school fantasy game with four core classes and early-level adventures.

A dice-design toolkit explaining symbol probabilities, narrative checks and random generators.

Dark-elf revolutionaries fight oppression in a sprawling, dangerous vertical city.

Espionage and contemporary action in a d20-derived family, with agents, missions, and campaign tools that differ between the classic edition and Spycraft 2.0.

Fantasy with the open fifth-edition rules: SRD 5.2.1.

Space missions amid great houses, frontier conflicts and psychic dangers.

A comic space adventure about spectacularly incompetent crews.

Space opera set roughly five hundred years in the future, based on David Collins-Rivera’s universe and published as a freely available rulebook under ongoing development.

Science-fantasy adventures among strange worlds: crews equipped with powered armor, laser weapons, and magic investigate alien ruins and mysteries across a shared galactic setting.

Starfinder second edition brings magic, aliens, and advanced technology to the Pathfinder second-edition engine, featuring three-action turns and multiple degrees of success and failure.

An old-school science-fiction sandbox with world creation, factions and psychic adventurers.

Onyx Path’s family of narrative engines supports different genres. Storypath and Storypath Ultra share a lineage, with game-specific rules and distinct iterations.

Posthuman science fiction balancing extraordinary capabilities with beliefs and narrative influence.

Adventure fantasy inspired by the original game, with heroes, monsters, and treasure, presented by Mythmere Games through Complete Revised and associated supporting resources.

A free, browser-based Star Wars d20 tabletop RPG blending Saga Edition depth with 5e ease; includes online character, starship, and map builders.

A dark-fantasy roleplaying game of exploration and corruption, centred on the ancient forest of Davokar and the societies surrounding it.

A diceless roleplaying system distributed as a free PDF, with a copyright notice allowing personal printing.

A successor to Low Fantasy Gaming focused on fantasy adventures and emergent play, featuring its own revised rules and a freely available playtest document.

A classless fantasy roleplaying system with skills, opposed combat, fatigue and wounds.

Exotic fantasy with diverse cultures, magic and a shared action table.

A modular genre-neutral game with opposed dice and fast character creation.

A collection of short experimental roleplaying games, correspondence games and scenarios.

A universal heroic roleplaying system with scalable traits, gear and powers.

A d6-based fantasy retroclone emphasizing dungeon exploration and wargame roots.

David Black’s compact fantasy game uses classic adventure principles, with a historical reference document published with the author’s permission and a clearly delimited open-content notice.

Deadly modern missions offer ambitious Contractors extraordinary powers.

A science-fantasy introductory adventure beneath a shattered moon.

A hyperlinked rules reference covering fantasy classes, spells, monsters and variants.

James V. West’s generic narrative game uses character traits and a pool of dice to share responsibility for creating the unfolding story at the table.

A design toolkit for stories of risk, loss, stress and lasting consequences.

Fantasy centered on people and moral choices, where adventures and character growth reshape Near; Solar System develops the underlying rules into a separate framework.

An simple system (it uses only d6) but surprisingly deep.

A historical Irish publisher archive of modern, horror and cinematic action games.

Scott Lininger’s generic narrative system describes abilities through words and differently sized dice, emphasizing interpretation and concise resolution instead of extensive numerical character statistics.

The reference rules derived from Legacy: Life Among the Ruins, where players develop both a family of survivors and individual characters across generations.

A collaborative fantasy setting adaptable to different game systems.

A compact fantasy game with one d10, simple classes and quick adventures.

Gallant Knight Games’ minimalist rules engine powers fantasy, science-fiction, superhero, horror and other games, with adjustments and character options tailored to each title.

A Brazilian heroic fantasy game set in Arton, a world of cities, gods and dangerous creatures threatened by the Tormenta, with extensive options for adventurers.

Ice Age hunters explore a world where spirits and everyday survival overlap.

The historical reference for Mongoose Traveller first edition provides a science-fiction engine for characters, spacecraft and adventures across different interstellar settings.

A historical d20 adaptation of Traveller for space adventures involving characters, skills, combat, and travel; T20 Lite provides a shortened introduction to the rules.

A historical RPG reference whose original rules are currently unavailable.

Common people become adventurers and build a haven amid a ruined fantasy realm.

Guardians of Order’s historical generic system builds characters with points and three main statistics—Body, Mind, and Soul—supporting different genres and levels of power.

A minimalist narrative game for different genres, with characters defined by brief concepts and challenges resolved using one to three ordinary six-sided dice.

Science-fantasy journeys across a strange multiverse, featuring unusual characters, mystical barges, dying gods, and distant worlds explored through straightforward six-sided-dice rules and conversation.

Tragic fantasy about treasure hunters: Dark tells stories of doomed expeditions, while Gold adapts that foundation for ongoing exploration campaigns and old-school adventure play.

Green Ronin’s multigenre adventure engine uses a single d20 and first appeared in the original Blue Rose before becoming an independent rules framework.

Nate Treme’s minimalist 2d6 engine works across genres and settings, originating in The Eternal Caverns of Urk and inspiring distinct hacks and variants.

Classic fantasy with handfuls of six-sided dice and solo adventures.

A lighter introduction to the Fantasy Dice approach.

A historical reference to a poker-dice roleplaying game.

A universal game supporting guided, cooperative and solo play.

Space opera about exploration, conflict, politics and commerce.

A deliberately abrasive satire of indiscriminate dungeon-style violence in a modern city.

VISORPG-Z+ Gold Edition (2026): Solo roleplaying inspired by videogames, dialogue trees and genre templates.

Solo roleplaying inspired by videogames, dialogue trees and genre templates.

A lightweight versatile d6 system.

A lightweight roleplaying engine using ordinary playing cards.

A browser tool for fifth-edition encounters and initiative tracking.

An open release of the rules engine used by Over the Edge’s second edition, separated from its setting so creators can develop their own games and material.

Classic-tradition fantasy built for long campaigns, using concentrated rules that combine old and modern approaches while helping groups adapt material from other roleplaying games.

A dice pool based game where the size of the pool is determined by several factors; has optional rules converting to other resolution systems.

Far-future fantasy adventures with extensive sandbox-building tools.

Cinematic action and shared storytelling emphasize spectacular descriptions over simulation; Open, Reloaded, and Black Belt must be distinguished when checking their texts and permissions.

D6 based system.

YAGS Yet Another Game System - a generic system.

Free League’s adaptable engine supports different genres, from fantasy exploration and mystery to space horror and survival, with specific variants for each game.

Gritty sword-and-sorcery with percentile dice and colour-coded outcomes.