Libre works can be shared both in original form and after being adapted, though there may be some conditions on their use.
There are a number of different definitions of libre, including the Open Definition and the Definition of Free Cultural Works
No matter what the definition, libre content can be shared and adapted by any person for any purpose, including commercial purposes. The only requirements are minor, and include attribution (you need to give credit to those whose work you're using) and copyleft (if you use the content in your own work, your work has to be under the same licence as the content you use).
Subcategories:
Works
- 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.
- Those Funny Funguloids! ● 'Never before has collecting mushrooms been this mildly entertaining. At least not in outer space.'
- 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.'
- Tor ● Browse the Internet anonymously.
- Torch & Sword ● A retroclone of 0D&D.
- Traveller ● A long-lived role-playing game with some setting details.
- Triangle Wiki ● A wiki about the Triangle Region.
- 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.
- Trolling Effects ● 'Trolling Effects is a resource for those who have been targeted by patent trolls.'
- True20 ● A d20-based RPG.
- Tube ● A movie, still in production.
- Twenty One Turn Hero ● A curious one-page RPG where you face off against dragons and sorcerers.
- Twisted Space ● An encounter for the RPG Dungeons & Dragons 4E.
- 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).'
- Understanding Changes in Poverty ● "Understanding Changes in Poverty brings together different methods to decompose the contributions to poverty reduction."
- Uneven Wings ● a tabletop RPG in which players bid tokens to succeed at competitive tasks
- Unlikely Treasures 1 ● Tables of treasures for dungeon-crawling fantasy.
- Unsung Tales ● 'Unsung Tales is a card-based roleplaying game, in which you and your friends will work together to tell stories of mystery and adventure in a Sword and Sorcery world.'
- 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.
- Wealth Inequality in America ● An informative YouTube video.
- Weapons & Gear ● A Ronin Arts gear book for 4C System.
- Weasels! ● A simple system of intelligent weasels living in The Forest that must deal with a threat. Easy for kids.
- 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.
- White House Honey Ale ● Beer brewed on the White House grounds.
- Why Open Education Matters ● A contest where people were asked to 'Create a short video that explains the benefits and promise of Open Educational Resources for teachers, students and schools everywhere.'
- Why the Heck Should I Care about the TPP? ● What it says.
- Wide Stance ● A game about repressed homosexuality, written in five minutes.
- WikiHouse ● Build your own house.
Sources
- Thingiverse ● Designs for 3D printers.
- Traficantes de Sueños ● A Spanish book publisher.
- Twine Games ● Online choose your own adventure games.
- Ubuntu Free Culture Showcase ● Free culture that has been chosen by the Ubuntu community.
- Uncensored Interview ● Interviews
- (un)Common Adventure Gallery ● Collection of free-to-publish genre illustrations.
- unglue.it ● A project to crowdfund the application of Creative Commons licensing
- (un)Playable_G4mes ● 'Where game ideas come to die'
- Unseen Studio ● 'Unseen Studio is a small podcast network promoting Creative Commons culture and Open Source software. We currently have 3 podcasts; CCJam, Crivins and TuxJam.'
- Unsplash ● "Free high-resolution stock photos"
- UNZ.org ● A collection of scanned journal articles.
- US Government ● The source of a tremendous amount of public domain works.
- Valentin Champer ● A poet.
- Vimeo ● A video-hosting site.
- Vimeo ● You can search Vimeo by Creative Commons licence.
- Wellcome Images ● ' Thousands of years of visual culture made free through Wellcome Images'
- White House ● The website of the President of the United States.
- Wikidata ● 'Wikidata is a free knowledge base that can be read and edited by humans and machines alike.'
- Wikimedia Foundation ● A free culture project that gathers a number of wikis.
- Wikinews ● "The Wikinews project is a free content news source of the Wikimedia Foundation that seeks to provide content, free of charge, where everyone is invited to contribute reports about events large and small, either from direct experience, or summarized from elsewhere."
- Wikipedia List of Game Engines ● A list of game engines on Wikipedia.
- Wiley Open Access ● A variety of journals published by Wiley.
- Wizards of the Coast ● A game publisher.
- World Bank Open Knowledge Repository ● "The World Bank Open Knowledge Repository (OKR) is The World Bank’s official open access repository for its research outputs and knowledge products."
- WPClipart ● A collection of public domain clipart.
- Yanone ● A young German jack-of-all-trades.
- YouTube ● A video site.
- Zadkiel ● 'Zadkiel are three piece Alternative-Rock/Indie band from Nottingham.'
- Zenhabits ● 'Zen Habits is about finding simplicity in the daily chaos of our lives.'
- zero-project ● A collection of musical compositions, audiobooks and songs.
- Basic Dungeons & Dragons ● The mechanics of original and basic D&D.
- @ccess ● An OKFN project to encourage libre open access.
- 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."
- LibrePlanet Gaming Collective ● The LibrePlanet Gaming Collective is a group of free software activists organized around their enthusiasm for video games.
- Rusałka ● A "GMless game of tragic fairy tales"
- Saga Machine ● 'Saga Machine is a brand new tabletop role-playing system by the Tab Creations Collective.'
- The First 100 Days of Government ● The Abbott Liberal Government's assessment of what it has achieved in its first 100 days.
- The Public Domain Game Jam ● A competition to create a game inspired by the public domain.
- The Public Domain Manifesto ● A statement on the value of the public domain.
- Who Needs Access? You Need Access ● An OKFN project to increase open access.