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
- #COPYWRONG ● Facts about how Australian copyright law is out of touch.
- Core Elements ● A distillation of the d20 System in just seven pages.
- Cosmo Noticias ● Information about space.
- Crash!/Lanterns of The Dead ● "Crash / Lanterns of the Dead is two game in one: a game about a crashed astronaut, and a game about an alien culture."
- Creative Commons & Government Guide ● A guide to using Creative Commons licensing in government.
- Creative Commons: A User Guide ● A step-by-step guide to the world of CC licences.
- Credit Is Due ● A song by Nina Paley about attribution.
- CrisisCommons Wiki ● 'A volunteer and project collaborative space for organizing projects and efforts around disaster relief.'
- Critical!: Go Westerly ● A light and light-hearted RPG.
- Critical Point Of View ● An INC Reader for Wikipedia.
- Crossword Maze ● 'You are a little girl, and your ‘quest’ is to find some random letters.'
- CryptoParty Handbook ● 'This 392 page, Creative Commons licensed handbook is designed to help those with no prior experience to protect their basic human right to Privacy in networked, digital domains.'
- Cyberpunk Remix ● This game is about your crazy friends and family.
- D100II SRD ● This allows you to play the old d100 games.
- d20 Anime ● Play magical girls, sorcerers and mecha pilots using everyone's favourite system.
- d20 Modern ● Modern role-playing, from occult investigation to special ops and anything in between.
- d20 Open Mass Combat System ● A free wargame.
- D6Pool ● A tabletop RPG set in modern times.
- Dangers & Dweomers ● A merger of Swords & Wizardry and Basic Fantasy.
- Dan's Diminutive D20 ● Quick and easy d20 role-playing.
- Daring Adventures ● 'Daring Adventures offers quick, no-prep superhero roleplaying, roughly in the style of golden age comics.'
- Dark Dungeons ● A tabletop RPG based on the Rules Cyclopedia.
- Dark Passages ● A modern fusion and re-organisation of 0E and 1E rules.
- Darker Dungeons ● A tabletop RPG based on a streamlined version of the Rules Cyclopedia.
- Data Journalism Handbook ● "[A] free, open source reference book for anyone interested in the emerging field of data journalism."
- D&D4.5 ● A partial clone of D&D 4E.
- Death of the Japanese Emperor ● An experiential larp for 4-8 players
- Death Takes A Holiday ● When Death takes a holiday, a hapless family of ghosts must shepherd the dearly departed.
- Debtocracy ● A documentary about the debt crisis.
- Deconstructing Masculinity ● 'Deconstructing Masculinity is an animated short documentary about gender norms and especially focussed on masculinity, the problem with the idea of violent masculinity.'
- Deep Freeze: Iceland's Economic Collapse ● 'In Deep Freeze, economists Philipp Bagus and David Howden demonstrate that the real cause of the calamity was bad central bank policy.'
- Department Nine ● Oracular spies fighting the future and Greek myths.
- Design Livre ● 'Design Livre is an attitude, a way of conceiving the design and seek a comprehensive and inclusive look, recognizing designs made by people.' (translated from Portuguese)
- Destiny System ● A universal RPG.
- Diagonal ● A Spanish language periodical.
- Diaspora ● Singularity FATE-based role-playing.
- Dice Icons ● Dice icons.
- Dictionary of Sydney ● About Sydney.
- Digital IPA Recipe ● A recipe for open source beer.
- Digital Public Library of America ● 'The DPLA is leading the first concrete steps toward the realization of a large-scale digital public library that will make the cultural and scientific record available to all.'
- DIYLILCNC ● Plans for a simple, cheap CNC mill.
- Dominion Rules ● Medieval classless fantasy role-playing.
- Donjon ● A fantasy dungeoncrawl game with significant player narrative control.
- Doodles & Dragons ● 'n celebration of finishing my year-long effort to draw a cartoon of every single monster in the 2nd Edition AD&D Monstrous Manual, I made a PDF containing a one page World of Dungeons hack along with every one of my cartoons.'
- Drafting The Gift Domain ● "an introduction to Open Content projects with respect to how they work, how they are designed, and how they continue to exist alongside Market driven entities."
- Dragon 2000 All You Can Eat ● A shady Chinese restaurant is the setting for a Fiasco playset.
- DramaSystem SRD ● The basic system of the Hillfolk RPG.
- Dresden Files RPG ● A FATE RPG about modern magic.
- Drupal: The Card Game ● "In this quick card game 2-4 players compete to earn the most reputation by developing new Drupal modules and building complex websites!"
- Dscript ● A new Roman script.
Sources
- Freetems ● Collection of CC0 / public domain photos, ebooks, music etc.
- Fury Comics ● Public domain comics for gratis viewing but difficult to download.
- Game-icons.net ● 'Hundreds of free icons to customize and include in your games'
- Give Life Back to Music ● First public domain record label.
- Global Voices ● A network of bloggers.
- Glyphicons ● 'GLYPHICONS is a library of precisely prepared monochromatic icons and symbols, created with an emphasis on simplicity and easy orientation.'
- Goblinoid Games ● A publisher of retro-style tabletop games.
- GoodSemester ● A place to share class notes.
- Google ● A company. You may have heard of them.
- Google Web Fonts ● 'Hundreds of free, open-source fonts optimized for the web'
- Grand OGL Wiki ● A collection of open game content from other sources.
- Gratis Games ● A provider of free retroclones.
- Green Ronin Publishing ● An RPG publisher.
- Greg Christopher ● An author of RPGs.
- Greg London ● A programmer, science fiction author and copyright minimalist.
- Hack the Bells ● A competition to remix the carillion in UC Berkeley.
- Hampshire College Free Software Recommendations ● Hampshire College's recommended FLOSS for students.
- hananmisery ● A musician.
- Harvard Library Open Metadata ● Metadata from the Harvard Library.
- HG Wells ● A famous author.
- Hungry Lucy ● A band that blends pop, haunting vocals and other styles.
- i-am-cc.org ● A third-party site that allows you to CC license your Instagram photos.
- iCommons ● "iCommons is a registered UK charity that promotes collaboration among proponents of open education, access to knowledge, free software, open access publishing and free culture communities around the world."
- I'M FRESH! YOU'RE PRETTY! ● Musicians.
- Incompetech ● Royalty-free music
- Institute of Network Cultures ● An institute which studies media, networks and the Internet.
- Interactivities Ink ● A creator of games you can print and play.
- Internet Archive ● An organisation devoted to permanent access to digital collections.
- Internet Archive Book Images ● Over 2 million images from books digitised on the Internet Archive.
- Inventory of FLOSS in the Cultural Heritage Domain ● Libre software that relates to culture and content.
- Italian Constitutional Court ● Has an experimental open data section.
- Italian Government ● A government.
- Jagannath Mohanty ● An Odia author and academic.
- Jamendo ● A website which only hosts Creative Commons songs.
- James D Hargrove ● An author.
- James Hutchings ● 'James Hutchings lives in Melbourne, Australia. His work has appeared in Daily Science Fiction, Enchanted Conversation and fiction365 among other markets.'
- Jason Morningstar ● Game designer for Bully Pulpit Games.
- Jason Rohrer ● A game designer who writes simple but not simplistic games.
- Jeff Moore ● An RPG author.
- Jeff Preston ● An artist.
- Jemex ● A catchy musician from Brooklyn.
- Joe Banner ● Writes adventures for Dungeon World.
- John Sundman ● An author.
- Johnstone Metzger ● A game designer.
- Jonathan Mann ● Wrote a song a day; now over 1700.
- Jono Bacon ● Man who is involved in Ubuntu community, also in a band.
- Josh Roby ● A game designer.
- Josh Woodward ● Josh Woodward writes and sings acoustic rock.
- Journal of Librarianship and Scholarly Communication ● "The Journal of Librarianship and Scholarly Communication is a quarterly, peer-reviewed open-access publication for original articles, reviews and case studies that analyze or describe the strategies, partnerships and impact of library-led digital projects, online publishing and scholarly communication initiatives."
- Journal of Sustainable Development ● A transdisciplinary international journal published monthly.
- 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.