Libre Games by Licence

Open Game License

  • Arcana EvolvedMonte Cook's d20 magnum opus, a riveting world of staff-wielding sorcerers, mages who speak to brooks and trees and those whose memories reach back to the beginning of time.
  • Core ElementsA distillation of the d20 System in just seven pages.
  • d20 AnimePlay magical girls, sorcerers and mecha pilots using everyone's favourite system.
  • d20 ModernModern role-playing, from occult investigation to special ops and anything in between.
  • Dark Dungeons • Dark Dungeons is a retroclone for the Rules Cyclopedia.
  • DiasporaSingularity FATE-based role-playing.
  • e20 SystemA roleplaying game whose mechanics allow for fast game play, streamlined character creation and advancement, and a cinematic storytelling experience adaptable to any genre or style of play.
  • FATE (game)A universal game based on the FATE engine.
  • FudgeAn early generic RPG.
  • Ghost RunnerAs a Ghost Runner, you the players must track down rogue Ghosts, pulled from the afterlife and embedded into cybernetic SHELS which are used to hold these spirits to the world.
  • GOREA d%-based horror RPG.
  • Iridium SystemA simple and realistic system combining skills and classes.
  • Microlite20A simplified version of the d20 System.
  • Monsters (Dungeon World)Based heavily on monsters written or converted by Mark Gedak for the August DM Sketchpad.
  • MULRAHAn RPG that has undergone considerable changes in recent versions.
  • OpenD6The popular D6 System finally released as open.
  • OpenQuestA complete and easy to play fantasy roleplaying game, with monsters, magic and exotic locales. OpenQuest uses the classic D100 rules mechanic, which uses percentages to express the chance of success or failure.
  • SpellchromeA classless version of the d20 System.
  • Sweet20Bringing indie sensibilities to the d20 System.
  • Tech NoirA cyberpunk game that uses a d20.
  • The Age of ShadowA role-playing game designed for one of the most popular fantasy trilogies of all time.
  • TravellerA long-lived role-playing game with some setting details.
  • True20A generic RPG based on a lite version of the d20 System.
  • Two Worldsd20 role-playing based on the computer game of the same name.
  • WayfarersPoints-buy medieval fantasy role-playing.

Creative Commons Licences
Creative Commons Attribution

  • A Strange CharmAn RPG based on time travellers eternally reborn as they trawl the stars and lost years.
  • Department 9You work for the Fates, manipulating people’s destinies to make sure everything goes according to The Plan.
  • DulseA game about relationships, ideals, and the choices we make to preserve or destroy them.
  • GhostsYour fantasy city is under siege. Play both the living and the dead.
  • House of MasksIn a far off land where mighty sorcerers dwell, the God-King Castor rules from a castle where the spirit realm and physical realm touch, allowing for powerful magics to happen and for a person’s spirit form to take control of one’s body..
  • LongshotYou’re a colonist four light years away from home, scraping by thanks to the occasional supply ship from Earth.
  • Man and UbermenschA fascist superhero replaces the US President during World War II.
  • MULRAHAn RPG that has undergone considerable changes in recent versions.
  • MyriadA rules-light modular generic RPG.
  • Old MessilaBilly the Kid is on a train to Old Messila, doomed to hanging in this Lady Blackbird hack.
  • PolliesA generic dice-based RPG.
  • RevolucionChart the course of any revolution, real or imagined, in any time or place.
  • ShadowsChildren accompanied by their formidable Shadows.
  • TelgrathiaA fantasy game based on Blackjack.
  • The G.A.M.E SystemThe Generic Action Mediation System is designed to give players flexibility in the powers they design.
  • The PlantA solo RPG where you play someone crawling around the innards of a power plant.
  • WordplayA straightforward narrative role-playing game.
  • Wushu OpenA game where detailed narration affects your chances of success.
  • You Are BadassA short and sweet game where you play a badass in the near future.

Creative Commons Attribution-Share Alike

  • Anima PrimeA fast-paced RPG based on Final Fantasy and Avatar: The Last Airbender.
  • As the Tea Leaves GrowSmall Toad – youngest student of Master Iron Willow – gave the rarest tea flower in Master Iron Willow's considerable collection to a passing beauty.
  • Beast HuntersTattooed hunters of beasts use their fiendish blood for sorcery.
  • COREA generic community-designed game.
  • DonjonA fantasy dungeoncrawl game with significant player narrative control.
  • Escape from ThanatosA Space Opera where one takes on the roles of Captain Talia Mercury, Merchant Prince Marcus Dunn, ageing Space Knight Sir Lux Angelo, Francisco - Talia's stalwart companion, and Mona - a mysterious stowaway as they crash land on the planet Thanatos after escaping the Omegan Empire!
  • FASTA light and simple skill-based RPG.
  • GeasaA story telling game about fickle fairies.
  • Hearth & HuntA coming-of-age ritual on the edge of the world.
  • JazzA flexible and easy-to-use game system drawn from many sources.
  • MidgardPlay a viking hero on epic adventures.
  • OSTSA generic rules-light RPG.
  • RunebearerA fantasy game which draws on several different RPG systems.
  • Shadow of YesterdayA pioneering RPG where characters are defined by their Keys and Secrets.
  • Terror of the Serpent MenDan Dynamo - renowned pulp hero - is playing host to the gorgeous Princess Aphasia of the Venusians.
  • ToastA rules-light universal RPG.
  • Wushu OpenA game where detailed narration affects your chances of success.

Creative Commons Attribution-Noncommercial

  • ConsoleAn RPG for emulating console video games.
  • Forty ThievesA minimalist beer-and-pretzels game about life as an Arabian thief.
  • MetafictionA short RPG about those who can travel through fiction.
  • NoteworthyThe only role-playing game where the characters are all bloggers.
  • Star EmpireArcade gamers are recruited for a stellar war.
  • The Princess GameThis is a game about a little girl. The only little girl in the whole wide world. The only person there is, really.
  • The Undying LandsPeople from the real world are catapulted into a land of fairy tales.
  • ValenceRebuild the fallen Human Empire.
  • Witless MinionThe role-playing game of mooks, minions, and dupes.

Creative Commons Attribution-Noncommercial-Share Alike

  • ... in Spaaace!Zany space adventures powered by the Token Effort system.
  • Ad AstraAn open source, science fiction campaign setting.
  • Alien SurvivorFight off the alien menace in this Lady Blackbird hack.
  • All The King's MenBack from the Crusades, you must kill the bandit lord Robin Hood.
  • ARDWINA REIGN setting that explores race, genetics and cultural identity.
  • BanditronThe chase movie as space western.
  • DjinnbustersHunt ghosts in a land of sultans and deserts.
  • DreadA diceless horror game that uses a Jenga tower.
  • Drowning and FallingThe Fantasy Role-Playing Game of Adventure and Death from Drowning and Falling
  • FISCYou are all members of the FISC, the financial investigation agency, the only hope of the Republic against the all-powerful multinational companies.
  • GamemasteringOver 300 pages of comprehensive techniques for Gamemasters of face-to-face roleplaying games.
  • GhostlightPlay a ghost who interacts with the world through emotion.
  • His DueOrdinary people find some of their memories have been taken in exchange for deadly magical powers.
  • IcarA detailed sci-fi RPG and setting, beautifully decorated with 3D images.
  • Iliamna UnknownVacationing software engineers search for the Iliamna Monster.
  • InumaA system for shared, improvised storytelling.
  • Lady BlackbirdA game, a setting and a starting adventure all in one, Lady Blackbird is a collage of recent innovations in gaming.
  • LOREThe Lightweight Universal Roleplaying System.
  • Lost SoulsPlay a lost soul returned from beyond the grave.
  • Maschine ZeitThe story of the beginning of the Machine Age.
  • Mayhem AcademyEnrol at a private school for tomorrow's amoral killing machines.
  • Meatbot MassacreA fun and engaging game of gladiatorial battles in the far future, where the dice you gather determines your actions for that round.
  • Metropole Luxury CoffinThe Metropole Luxury Coffin is home to the dregs of society. You’re not like them, though. You’re going to get out of here someday.
  • Minions, IncPlay the minion servant of a supervillain.
  • My Darn Ex-WifePlay a squid mechanic or a redneck father in this Lady Blackbird hack.
  • My Supernatural RomanceAn RPG for couples, originally inspired by True Blood, Twilight, Let the Right One In, Buffy, and other tales of star-crossed vampire-human romances.
  • Pirate SquadA Dungeon Squad hack for piratical adventures.
  • Post Apoc-BirdA Lady Blackbird hack set in a distant, post-apocalyptic future.
  • RUGSA generic rules-light game engine.
  • Ruritania 1844A live-action role-playing game set in an alternate pseudo-history.
  • SagaA rules-light narrative game engine.
  • SomnambulanceTeenagers struggle to discover the truth behind their mysterious sleep-walking.
  • SpacePiratesSpace opera in what appears to be German.
  • Star WreckAn RPG based on the movies that parodied Star Trek.
  • SuperligaA d20-based game dedicated to gonzo gaming.
  • Tea PartyPlay Sarah Palin or Joe the Plumber in this Lady Blackbird hack.
  • Ten Thousand WorldsA game which allows you to describe almost anything based on its 'levels'.
  • The Last ChallengeOld warriors gather round a campfire to tell stories of their exploits and prepare for the final battle of their careers.
  • The MustangA short game about three youths who confront a demon horse.
  • ThetisA world of nautical fantasy adventure.
  • Time & TempTime & Temp is a game of time travel and underemployment for 3 to 5 players.
  • Tiny TrianglesPlay mice champions for whom it's not how you fight but what you fight for.
  • TreasureA modular, symbols-based RPG.
  • ViolenceA parody which brings the gratuitous violence of the dungeon into the modern age.
  • ZamaniA detailed pulp-and-planet game.
  • Zombie SquadWhy mess around with clerics and balors when you can have zombies?

GNU
GNU Free Documentation License

  • Army BratsWelcome to Fort Biloxi. Your parents have sent you to military school to "help you focus". What could be scarier than military school? How about being one of the new kids? Luckily, you have a cunning plan. You and the other new kids (the other players) are going to try to get expelled so you can go back to public school with all your friends.
  • CirceOne of the first games to be open source.
  • JAGSA universal generic games system.
  • Sacred SteelAn RPG once lost, but capable of preservation thanks to its open licence.

GNU General Public License

  • CirceOne of the first games to be open source.
  • FringeA half-finished RPG designed by committee.
  • HyperA modular gaming system.
  • OspreyA generic role-playing engine.
  • YAGSA moderately crunchy cinematic rules system.

Own Licence

  • MidianAn intricate and lengthy RPG of dark fantasy.
  • New Realms"Yet ANOTHER Universal Anime RPG."
  • NUGGETA simple, light RPG.
  • PhobosThe wonders and terrors of technology and magic.
  • Redbox HackA clever reinterpretation of fantasy gaming.
  • SeventhA fantasy role-playing game.
  • ZeFRSA retroclone of TSR's Conan RPG.

Public Domain

  • HoardPlay a growing dragon.
  • MidianAn intricate and lengthy RPG of dark fantasy.
  • The Far TowersPlay travelling enforcers and heroes putting wrongs to right.

Free Art License

OpenContent License

  • DraftA generic RPG with rules for magic and hit locations.
  • EpitomeA free, universal RPG.
  • Star QuestA science fiction game and a setting with no strict cannon.

Open Publication License

  • Grey LotusA fantasy RPG with a freeform magic system.
  • LycadianAn elaborate fantasy setting and accompanying rules engine.