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

• The Liberate Pixil Cup Quest ● A game where you fight monsters.
• The Modern Path ● A tabletop RPG.
• The Open Source Way ● A book about open source projects.
• The Open Utopia ● An open content take on Thomas More's Utopia.
• The Python Game Book ● What it says in the title.
• The Shackled Self ● A game of princes who pursue asceticism to save the world.
• The Shrouded Lands ● A fantasy setting.
• The Simple Game System ● A simple and generic rules-system based on d6s.
• The Social Media Reader ● 'Culling a broad range and incorporating different styles of scholarship from foundational pieces and published articles to unpublished pieces, journalistic accounts, personal narratives from blogs, and whitepapers, The Social Media Reader promises to be an essential text, with contributions from Lawrence Lessig, Henry Jenkins, Clay Shirky, Tim O'Reilly, Chris Anderson, Yochai Benkler, danah boyd, and Fred von Loehmann, to name a few.'
• The Toxies ● 'The Toxies is a satirical red carpet awards ceremony for toxic chemicals and pollutants.'
• The Vicious Crucible of the Eburnean Tower ● 'The Eburnean Tower has stood for centuries as a symbol of scholarship, arcane power, and ruthless domination.'
• The Vicious Crucible of Verdigris Valley ● 'The borderlands of the Verdigris Valley have never been peaceful, but now an invasion force gathers at the summit of the Pashuan Way, looking hungrily down on the rich homesteads and crippled fort below.'
• The Wealth of the Commons ● 'A new collection of 73 essays that describe the enormous potential of the commons in conceptualizing and building a better future'
• The Wizard's Amulet ● An adventure for 5th edition Dungeons & Dragons.
• Theonosis ● A crowdsourced fantasy setting.
• Tings ● A NaNoWriMo novel.
• TINT ● This is Not This is Not a Podcast - a sports podcast.
• To the Barricades ● A boardgame about a faceoff between radicals and the police.
• Toast ● A rules-light universal RPG.
• Top Ten Open Source Gifts for the Holidays ● 'The opensource.com team gathered ten of our favorite gadgets to help you pick out that perfect present for that special (open source) someone.'
• Torch & Sword ● A retroclone of 0D&D.
• Traveller ● A long-lived role-playing game with some setting details.
• TRIC SRD ● A 4E clone.
• Tricks and Treats ● A Halloween-themed tabletop RPG about trick-or-treaters out on Halloween who must overcome scary monsters to rescue a friend
• Tri-Fold FATE ● The basic rules of FATE on three pages.
• True20 ● A d20-based RPG.
• Ultramodern4 ● Dungeons & Dragons 4E rules in a modern setting.
• Uncharted Worlds ● 'Uncharted Worlds is a Space Opera roleplaying game built upon the Apocalypse World rules. It’s inspired by the big, bold, larger-than-life space-faring epics like Mass Effect, Firefly, Star Trek, and by games like Traveller, Masters of Orion, Starcraft (and a bit of Galaxy Trucker).'
• Unlikely Treasures 1 ● Tables of treasures for dungeon-crawling fantasy.
• vessel.cc ● An art installation.
• Voidspanners ● A swashbuckling space adventure for Basic Fantasy RPG.
• Volley Zombie ● A simple HTML5 game for the Liberated Pixel Cup.
• vs Elves ● A supplement for vs Monsters.
• vs Monsters ● A 24HRPG by Phil Reed.
• Wanton Role-Playing System ● An OGL version of the RPG Over the Edge.
• Warrior & Wizard ● A retroclone of The Fantasy Trip.
• Wayfarers ● Points-buy medieval fantasy role-playing.
• Weird World ● 'Weird World is a game about playing characters with unnatural powers in a dangerous, exciting world.'
• WE_Magazine ● A magazine about collective action.
• What's the Deal with Copyright and 3D Printing ● What it says.
• Where Are The Joneses? ● A British comedy about a woman seeking her long-lost siblings.
• WikiHouse ● Build your own house.
• Wikipedia ● A libre encyclopedia that anyone can edit.
• Wikipedia Chanukah ● JoCo's only free/libre/open song.
• Wikipedia:Sound/list ● "This is an incomplete list of full length free content musical works available on Wikipedia or Wikimedia Commons, with special emphasis on works that are (or should be) linked in Wikipedia articles." (Mainly classical music)
• WikiPremed MCAT Course ● 'WikiPremed's mission is to lower economic barriers to becoming a doctor and to improve the quality of MCAT review for everyone.'
• Winning the Web ● '[T]his report represents a comprehensive survey of techniques employed in recent access to knowledge (A2K) activism that have succeeded in taking intellectual property (IP) reform issues to a wide audience.'
• Witless Minion ● The role-playing game of mooks, minions, and dupes.
• Wordplay Core Rules ● A straightforward narrative role-playing game.
• Wrack & Wruin ● Ryan St's rewriting of original D&D in the style of Apocalypse World.

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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

• The Modern Path ● A tabletop RPG.
• The Shackled Self ● A game of princes who pursue asceticism to save the world.
• The Shrouded Lands ● A fantasy setting.
• The Simple Game System ● A simple and generic rules-system based on d6s.
• The Vicious Crucible of the Eburnean Tower ● 'The Eburnean Tower has stood for centuries as a symbol of scholarship, arcane power, and ruthless domination.'
• The Vicious Crucible of Verdigris Valley ● 'The borderlands of the Verdigris Valley have never been peaceful, but now an invasion force gathers at the summit of the Pashuan Way, looking hungrily down on the rich homesteads and crippled fort below.'
• The Wizard's Amulet ● An adventure for 5th edition Dungeons & Dragons.
• To the Barricades ● A boardgame about a faceoff between radicals and the police.
• Toast ● A rules-light universal RPG.
• Torch & Sword ● A retroclone of 0D&D.
• Traveller ● A long-lived role-playing game with some setting details.
• TRIC SRD ● A 4E clone.
• Tricks and Treats ● A Halloween-themed tabletop RPG about trick-or-treaters out on Halloween who must overcome scary monsters to rescue a friend
• Tri-Fold FATE ● The basic rules of FATE on three pages.
• True20 ● A d20-based RPG.
• Ultramodern4 ● Dungeons & Dragons 4E rules in a modern setting.
• Uncharted Worlds ● 'Uncharted Worlds is a Space Opera roleplaying game built upon the Apocalypse World rules. It’s inspired by the big, bold, larger-than-life space-faring epics like Mass Effect, Firefly, Star Trek, and by games like Traveller, Masters of Orion, Starcraft (and a bit of Galaxy Trucker).'
• Unlikely Treasures 1 ● Tables of treasures for dungeon-crawling fantasy.
• Voidspanners ● A swashbuckling space adventure for Basic Fantasy RPG.
• vs Elves ● A supplement for vs Monsters.
• vs Monsters ● A 24HRPG by Phil Reed.
• Wanton Role-Playing System ● An OGL version of the RPG Over the Edge.
• Warrior & Wizard ● A retroclone of The Fantasy Trip.
• Wayfarers ● Points-buy medieval fantasy role-playing.
• Weird World ● 'Weird World is a game about playing characters with unnatural powers in a dangerous, exciting world.'
• Witless Minion ● The role-playing game of mooks, minions, and dupes.
• Wordplay Core Rules ● A straightforward narrative role-playing game.
• Wrack & Wruin ● Ryan St's rewriting of original D&D in the style of Apocalypse World.
• WTactics ● 'We're a community of free culture-loving individuals, creating a free card game.'
• Wushu Open ● A game where detailed narration affects your chances of success.
• Xceptional ● A supers RPG.
• Xochitlcozamalotl ● Aztec daisies, god-rabbits and divine parties meet in this Aztec soap opera.
• Yags ● A moderately crunchy cinematic rules system.
• You All Meet In A Tavern ● 'As a fledgling adventurer you have decided that the best way to get into the business is by attending the monthly Adventurer-Nite at the local White Griffon Tavern.'
• ZeFRS ● A retroclone of TSR's Conan RPG.

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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.'