Open Game License

A copyleft licence designed for games but usable elsewhere.


One of the first announcements

Has Open Gaming been a success? (Mike Mearls)

Fast Forward Entertainment forced to destroy books for OGL violations





Wizards of the Coast

  • 13th Age'This is the home of the 13th Age / Archmage Engine system reference document. It contains all the open content from the 13th Age RPG – the Archmage Engine.'
  • 4SRDA project to closely clone D&D 4E.
  • Action! System"The Action! System Core Rules provide all of the basic rules necessary to create and play a role-playing game. Create adventures and characters based on your favorite movies, TV shows or novels."
  • Adventurer Conquerer King System'Autarch's Adventurer Conqueror King System fulfills the promise of the original fantasy role-playing game by providing comprehensive, integrated support for play across all levels of a campaign.'
  • Adventures Of The Space PatrolRetro-Cute Sci-Fi Role-Playing
  • Alchemy SystemA modified d20 game set in its own universe.
  • Animalball MeleeA simplified d20 System for gladiatorial combat.
  • Astral DreamsA space opera miniatures wargame.
  • Backswords & BucklersFantasy dungeoncrawling in Elizabethan England.
  • Basic Fantasy Role-Playing GameA fusion of Basic D&D with D&D 3E to create a simple, light-weight game.
  • Blue RoseA d20-based RPG.
  • Bulletproof Blues'Welcome to Bulletproof Blues: a "rules light" superhero roleplaying game set in the universe of Kalos Comics.'
  • Cascade FailureLife in a post-apocalyptic future.
  • ContagionA free wargame.
  • Core ElementsA distillation of the d20 System in just seven pages.
  • Cyberpunk RemixThis game is about your crazy friends and family.
  • D100II SRDThis allows you to play the old d100 games.
  • 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.
  • d20 Open Mass Combat SystemA free wargame.
  • Dangers & DweomersA merger of Swords & Wizardry and Basic Fantasy.
  • Dan's Diminutive D20Quick and easy d20 role-playing.
  • Dark DungeonsA tabletop RPG based on the Rules Cyclopedia.
  • Dark PassagesA modern fusion and re-organisation of 0E and 1E rules.
  • Darker DungeonsA tabletop RPG based on a streamlined version of the Rules Cyclopedia.
  • D&D4.5A partial clone of D&D 4E.
  • DiasporaSingularity FATE-based role-playing.
  • DramaSystem SRDThe basic system of the Hillfolk RPG.
  • Dresden Files RPGA FATE RPG about modern magic.
  • Dungeons & Dragons 3EThe third edition of the world's most popular roleplaying game.
  • Dungeons DaringA fantasy RPG designed by a committee.
  • E6The game inside Dungeons & Dragons.
  • Epées & SorcellerieA game inspired by Original Dungeons & Dragons with some modern changes.
  • Errant RPGA fantasy role-playing game.
  • Fantastic Heroes & WitcheryAn extensive tabletop RPG.
  • Fantasy Craft%%form_data{intro}%%
  • Fantasy CraftA fantasy RPG based on the MasterCraft engine.
  • FATE 2EA universal game based on the FATE engine.
  • Fate Accelerated EditionA lite version of the fractal role-playing game Fate.
  • Fate Core SystemAn extended version of the fractal role-playing game Fate.
  • Fate System ToolkitA toolkit for the Fate tabletop RPG.
  • For Gold & GloryA retroclone of 2E AD&D.
  • Four Colors al FrescoPlay a superhero in the Italian Renaissance.
  • Free FATEA free, expanded version of FATE.
  • 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.
  • Grand OGL WikiA collection of open game content, primarily for Dungeons & Dragons.
  • GUMSHOE SRD'The document is a reference for game designers, and is not tuned to teach the game, or provide a playable game experience.'
  • Iridium SystemA simple and realistic system combining skills and classes.
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  • Basic Dungeons & DragonsThe mechanics of original and basic D&D.
  • d20 SystemThe roleplaying system which first appeared in Dungeons & Dragons 3E.
  • FATEA game system based on the mechanic: dice roll + invoked and tagged Aspects.
  • Saga Machine'Saga Machine is a brand new tabletop role-playing system by the Tab Creations Collective.'
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