Copyleft

Copyleft works can be shared both in original form and after being adapted, but they must remain under the copyleft licence even if they are modified.

Copyleft licences are also called 'reciprocal', 'viral' and 'share alike' libre licences. However, whereas copyleft can only describe a libre work, the other three terms can also describe proprietary works that must be kept under the same (proprietary) licence when adapted.

Openness: Libre

Works and Sources

Works

• Entropy Killed the Cat ● A movie.
• Entropy Of Imagination ● 'The inhabitants of this future Web reside in a closed system, where all possible experiences will soon be exhausted. The Web is winding down, falling into stasis. Here, Flatline is a brief infusion of novelty, bringing chaos to the system.'
• Entypo ● 'Entypo is a set of 250+ carefully crafted pictograms. The package contains an icon font'
• Envisioning Technology ● 'Envisioning Technology is an award-winning tech-trend forecasting studio with people in London, São Paulo and New York.'
• Epées & Sorcellerie ● A game inspired by Original Dungeons & Dragons with some modern changes.
• Errant RPG ● A fantasy role-playing game.
• EveryCook ● 'Better food through information.'
• Evil Wizards in a Cave ● 'Evil Wizards in a Cave is a short adventure module compatible with both the Dungeon World and Labyrinth Lord fantasy role-playing games.'
• Fairphone ● 'You can change the way products are made, starting with a single Phone. Together, we’re opening up the Supply Chain, and redefining the Economy – one step at a time.'
• Fantastic Heroes & Witchery ● An extensive tabletop RPG.
• Fantastique Unfettered ● A magazine of short stories.
• Fantasy Craft ● %%form_data{intro}%%
• Fantasy Craft ● A fantasy RPG based on the MasterCraft engine.
• Farm Taken Over ● A simple HTML5 game for the Liberated Pixel Cup.
• FAST ● A light and simple skill-based RPG.
• FATE 2E ● A universal game based on the FATE engine.
• Fate Accelerated Edition ● A lite version of the fractal role-playing game Fate.
• Fate Core System ● An extended version of the fractal role-playing game Fate.
• Fate System Toolkit ● A toolkit for the Fate tabletop RPG.
• Ficly (Jenny Everywhere) ● Ficly microfiction about Jenny Everywhere.
• Fire & Sword ● An evolution of RuneQuest.
• For Gold & Glory ● A retroclone of 2E AD&D.
• Forall X: An Introduction To Formal Logic ● 'This text describes two formal languages which have been of special importance to philosophers: truth-functional sentential logic and quantified predicate logic. The book covers translation, formal semantics, and proof theory for both languages.'
• Forge ● 'This is an HTML5 game. It’s extremely incomplete.'
• Fortune System Resource Document ● 'The Fortune System Resource Document includes the basic rules of the Fortune System. It also includes advice from existing Fortune System designers.'
• Four Colors al Fresco ● Play a superhero in the Italian Renaissance.
• Free as in Freedom ● A biography of free software guru Richard Stallman.
• Free Beer ● A libre recipe for beer.
• Free Beer (book) ● A book about free software and free culture from the speakers at FSCONS 2008.
• Free FATE ● A free, expanded version of FATE.
• FreeBassel Cookbook ● Cookbook made in solidarity with Bassel, a prisoner of the Syrian regime.
• French Government ● Two French cultural websites.
• Fringe ● A half-finished RPG designed by committee.
• FUBAR ● You've been screwed … and at least one person wants you dead.
• Fudge ● An early generic RPG.
• Full Circle Magazine ● A free, independent magazine for Ubuntu Linux.
• Future of Copyright ● A competition for fiction and non-fiction entries on copyright.
• Future of Copyright 2.0 ● A collection of fiction and non-fiction.
• Geasa ● A story telling game about fickle fairies.
• Ghost Runner ● As 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.
• GIMP ● A program for image manipulation and creation.
• Gimp Magazine ● 'The goal of this publication is to promote GIMP and related open source software.'
• Gods & Monsters ● An old-school style fantasy RPG.
• GORE ● A d%-based horror RPG.
• Grand OGL Wiki ● A collection of open game content, primarily for Dungeons & Dragons.
• Green Comet ● A sci-fi novel.
• Group Works ● 'A Pattern Language for Bringing Life to Meetings and Other Gatherings'
• Guess Who's a Mess ● 'Guess Who's a Mess is the third full-length Brad Sucks album. It's about dealing with other people's expectations.'
• GUMSHOE SRD ● 'The document is a reference for game designers, and is not tuned to teach the game, or provide a playable game experience.'
• HabitRPG ● 'Gamify your life'

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Sources

• Qi Hardware ● 'Qi's mission is to promote and encourage the development of copyleft hardware.'
• Qomun ● A directory of shareable works.
• Radio Nowhere ● 'Radio Nowhere is a rock/pop band from Oakland, California, in the United States. A friend told me that we sound like the missing link between Counting Crows and Duran Duran, and that sums it up pretty well.'
• Rafu ● Rafu, or Raffaele Manzo, is a game designer.
• Ronin Arts ● A publisher.
• Ryzom Asset Repository ● 3D assets from the MMORPG Ryzom.
• Sand & Steam ● An RPG company.
• Severed Fifth ● A band.
• SIL International ● An organisation which supports language communities
• Simone Aliprandi ● A researcher into copyright.
• Slim ● A band.
• Software Freedom Conservancy ● 'Software Freedom Conservancy is a not-for-profit organization that helps promote, improve, develop, and defend Free, Libre, and Open Source Software (FLOSS) projects.'
• Stuart Chaplin ● Story game author.
• Subaqueous ● 'Subaqueous is a solo music project of Isaac Cotec. The music has incorporated beat science to create progressive mid tempo and dance music.'
• Sunspot ● 'Disco-Metal Rock from the Cheese and Beer Galaxy'
• Teapot Dome Games ● A publisher of free role-playing games.
• Tenpenny Joke ● An alternative rock band.
• The SCP Foundation ● X-Files like wiki.
• Traficantes de Sueños ● A Spanish book publisher.
• (un)Playable_G4mes ● 'Where game ideas come to die'
• Wikipedia List of Game Engines ● A list of game engines on Wikipedia.
• Wizards of the Coast ● A game publisher.
• Yanone ● A young German jack-of-all-trades.
• Zadkiel ● 'Zadkiel are three piece Alternative-Rock/Indie band from Nottingham.'

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Licences

• CERN Open Hardware License ● 'In the spirit of knowledge sharing and dissemination, the CERN Open Hardware Licence (CERN OHL) governs the use, copying, modification and distribution of hardware design documentation, and the manufacture and distribution of products.'
• Creative Commons Attribution-ShareAlike ● A Creative Commons licence which allows copying provided credit is given and adaptations fall under the same licence.
• Creative Commons ShareAlike ● A retired Creative Commons licence.
• Free Art License ● A copyleft licence designed specifically for art.
• GNU Affero General Public License ● A copyleft software licence.
• GNU Free Documentation License ● A copyleft licence for manuals and software guides.
• GNU General Public License ● A copyleft licence designed for software.
• GNU Lesser General Public License ● A free software licence.
• Open Data Commons Open Database License ● A copyleft licence for databases.
• Open Game License ● A copyleft licence designed for games but usable elsewhere.
• Open Hardware License ● A couple of libre hardware licences.
• SIL Open Font License ● A copyleft font licence.
• TAPR Open Hardware License ● 'The TAPR Open Hardware License is TAPR's contribution to the community of Open Hardware developers.'

Tabletop Games

Works

• MurderHobos ● "MurderHobos gets to the meat of dungeon crawling: killing things and taking their stuff."
• Mutant Future ● Post-apocalyptic role-playing compatible with Labyrinth Lord.
• Mutants & Masterminds ● A d20 superhero RPG.
• Myth & Magic ● An adaptation of 2E AD&D.
• Necronautica ● A game of heroic soldiers fighting against an alien invasion.
• One Page Dungeon Contest 2012 ● Over a hundred one-page dungeons.
• One Shot ● 'A Roleplaying Game of Sacrifice and Vengeance'
• Open Adventure ● 'Open Adventure is a full-featured tabletop adventure game that offers out-of-box support for medieval fantasy and science-fiction expeditions.'
• Open4E ● 'This system is intended to be a streamlined and open tactical RPG. The primary source of inspiration is Dungeons and Dragons 4th Edition.'
• OpenD6 ● The popular D6 System finally released as open.
• OpenQuest ● A 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.
• Osprey ● A generic role-playing engine.
• OSRIC ● A retroclone of 1st Edition Dungeons & Dragons.
• Pathfinder ● A role-playing game based on Dungeons & Dragons 3.5.
• PCGen ● A character generator for the d20 System.
• Perfect20 ● A variant on D&D 3e.
• PFSRD ● A collection of Pathfinder official and third party materials.
• Phantom 52 ● 'A supernatural storytelling RPG'
• Prometheus SRD ● An open version of the character creation and advancement rules from Dungeons & Dragons 3E.
• Quest-ions ● 'Quest-ions is a fantasy roleplaying game with a novel mechanic using tokens.'
• Rainbow Deck ● 'The Rainbow Deck is a card game system that has a total of 162 cards.'
• Raven Crowking's Fantasy Game ● Raven Crowking's reworking of Dungeons & Dragons
• Realms of Wonder ● Rules-lite, classless, nostalgic RPG.
• Renaissance ● 'Renaissance is a free D100 roleplaying system designed for historical and fantasy gaming in the age of black powder weapons.'
• Rookvale ● 'Rookvale is a [tabletop] game of cinematic tactical combat [with demons]'
• Runebearer ● A fantasy game which draws on several different RPG systems.
• RuneQuest ● The RuneQuest core rules.
• Sacred Steel ● An RPG once lost, but capable of preservation thanks to its open licence.
• School Daze ● An RPG about high school.
• Scrabblenauts ● A game where spelling words with Scrabble tiles affects what happens in the story.
• Simple 20 ● A simple d20-based RPG.
• Sovereign ● A Risk-like boardgame.
• Spellchrome ● A classless version of the d20 System.
• Spellcraft & Swordplay ● A retro role-playing game that combines Chainmail and Original Dungeons & Dragons.
• Spirit of the Century ● Pulp two-fisted adventure in the 1930s.
• SRD5 ● A clone of Dungeons & Dragons 5th edition.
• Star Blades ● Science fiction role-playing using the original Dungeons & Dragons rules.
• Steel and Flame ● A more pulpy swords and sorcery esq RPG
• Swords & Wizardry ● A retroclone of original and whitebox Dungeons & Dragons.
• Synergy ● An open-source, rules-light, role playing game that does not rely on a “game master” or similar role to manage the game.
• Tech Noir ● A cyberpunk game that uses a d20.
• Terror Of The Serpent Men ● Dan Dynamo - renowned pulp hero - is playing host to the gorgeous Princess Aphasia of the Venusians.
• The 52 Pages ● An old school tabletop RPG with each concept explained on one page.
• The Age of Shadow ● A role-playing game designed for one of the most popular fantasy trilogies of all time.
• The Big Brown Book ● A take on 0E D&D that avoids using d20s altogether.
• The Dreaming Crucible ● A story about troubled adolescents travelling to Faerie.
• The Fifth World ● %%form_data{intro}%%
• The Fifth World ● Humans after civilisation - a tabletop roleplaying game that has been extensively revised.
• The Green ● A Donjon supplement by Valent Games.
• The Lands of the Dead ● 'This [Dungeon World] supplement is a resource to help you and your players create interesting, exciting, mysterious and dangerous lives after death.'

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• Basic Dungeons & Dragons ● The mechanics of original and basic D&D.
• CC-PRO ● A rebranding of the CC BY-SA licence to emphasise its value to professionals.
• d20 System ● The roleplaying system which first appeared in Dungeons & Dragons 3E.
• FATE ● A game system based on the mechanic: dice roll + invoked and tagged Aspects.
• Liberated Pixel Cup ● "Liberated Pixel Cup is a two-part competition: make a bunch of awesome free culture licensed artwork, and then program a bunch of free software games that use it."
• Saga Machine ● 'Saga Machine is a brand new tabletop role-playing system by the Tab Creations Collective.'