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).



  • HoardPlay a growing dragon.
  • Hoborg'A dieselpunk novel with Spanish-created robot hobos in a balcanized America at the beginning of the XX century.' - that anyone can edit, fork and contribute to.
  • Homotopy Type Theory: Univalent Foundations Of Mathematics'Homotopy type theory is a new branch of mathematics that combines aspects of several different fields in a surprising way.'
  • House of MasksIn a far off land where mighty sorcerers dwell, the God-King Castor rules from a castle where the spirit realm and physical realm touch, allowing for powerful magics to happen and for a person’s spirit form to take control of one’s body..
  • HyperA modular gaming system.
  • IcosahedralA role-playing game.
  • Immersion into Noise'On a planet that is increasingly technologically linked and globally mediated, how might noises break and re-connect in distinctive and productive ways within practices located in the world of art and thought?'
  • In the Shade of the CommonsAbout bridging the gaps between information societies.
  • Income Models for Open AccessDeveloping a business model for an open access journal.
  • InkscapeA vector graphics editor.
  • Inside a Star-filled SkyA recursive, infinite tactical shooter.
  • Integrity at ScaleA book proposing the Redesign Revolution.
  • Intellectual Property: Law and the Information Society"This book is an introduction to intellectual property law, the set of private legal rights that allows individuals and corporations to control intangible creations and marks—from logos to novels to drug formulae—and the exceptions and limitations that define those rights."
  • International Free & Open Source Software Law ReviewThe International Free and Open Source Software Law Review (IFOSS L. Rev.) is a collaborative legal publication aiming to increase knowledge and understanding among lawyers about Free and Open Source Software issues.
  • International Journal of the CommonsA journal that discusses resources that can be shared and used collectively.
  • Introduction to Basic Legal CitationUS legal citation.
  • Introduction to Economic Analysis'This book presents standard intermediate microeconomics material and some material that, in the authors' view, ought to be standard but is not.'
  • Invulnerable Tabletop Super Hero Roleplaying Game'The Invulnerable RPG Year One Edition allows you to create your own hero, and experience worlds of adventure!'
  • Iridium SystemA simple and realistic system combining skills and classes.
  • Iron Edda
  • Is Behavioral Economics Doomed?'Those of you who have read about – and who has not? – the current economic crisis may wonder just how rational economic man or woman is. Behavioral economics has become the modern rage. So is rational economic man – homo economicus – dead?'
  • Is It Open Data?"We've made it easy for you to make enquiries to data holders about the openness of the material they hold — and to record publicly the results of those efforts."
  • It Came From The Wide Blue YonderCthulhu medieval supers.
  • It's a Jetsons WorldA book which contrasts extraordinary private innovation with government recalcitrance.
  • JAGSA universal generic games system.
  • JazzA flexible and easy-to-use game system drawn from many sources.
  • Jenny EverywhereJenny Everywhere, aka the Shifter, is the world's first open source superhero.
  • Keeping On The BorderlandsA Fiasco playset parodying Dungeons & Dragons.
  • Khas Fara, Village of FearAn evil witch has taken over a small town.
  • Konkani Vishkawosh'Konkani Vishwakosh is a four-volume hard copy encyclopedia (3632 pages) published by Goa University; a work that took over 14 years to develop.'
  • La Cura, an Open Source Cure"A brain cancer. Some very personal Open Data. An opportunity."
  • Labyrinth LordA retroclone of Basic/Expert D&D.
  • Lamentations Of The Fire PrincessWeird fantasy role-playing.
  • Las Calles Hablan'A feature length documentary about street art in Barcelona'
  • Let's CCA South Korean search engine for Creative Commons materials.
  • Libertarian PapersA journal of libertarian scholarship.
  • Libre CultureAn anthology arguing for freeing up works from copyright.
  • Libre Graphics MagazineA magazine focused on GIMP, Inkscape and other open source graphics software — as well as the art created from that software.
  • Libre: The Open Source Card Game'In a time where time wasn't, Seven Factions struggle for Liberation of the others so that they may live free and without struggle. This is the world of Libre.'
  • LibrebusA project to raise awareness of libre.
  • Light And Matter'This is an introductory text intended for a one-year introductory course of the type typically taken by biology majors, or for AP Physics B.'
  • Linked Open Vocabularies'[Y]our entry point to the growing ecosystem of linked open vocabularies (RDFS or OWL ontologies) used in the Linked Data Cloud.'
  • LinuxLinux is an operating system. Sometimes called GNU/Linux
  • LinvixA Spanish language Linux magazine.
  • List of Open Source ProgramsList of Open Source Programs for Windows
  • Little WarsA storytelling game HG Wells played with his children.
  • littleBits'An opensource library of electronic modules that snap together with tiny magnets for prototyping and play'
  • Living Room'Living room is a musical stop-motion short film about the secret musical life of a group of chewing gums.'
  • LobsterAn extensive font designed to flow seamlessly.
  • LongshotA science fiction Western.


  • Basic Dungeons & DragonsThe mechanics of original and basic D&D.
  • @ccessAn OKFN project to encourage libre open access.
  • CC-PROA rebranding of the CC BY-SA licence to emphasise its value to professionals.
  • d20 SystemThe roleplaying system which first appeared in Dungeons & Dragons 3E.
  • FATEA 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 CollectiveThe LibrePlanet Gaming Collective is a group of free software activists organized around their enthusiasm for video games.
  • RusałkaA "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 GovernmentThe Abbott Liberal Government's assessment of what it has achieved in its first 100 days.
  • The Public Domain Game JamA competition to create a game inspired by the public domain.
  • The Public Domain ManifestoA statement on the value of the public domain.
  • Who Needs Access? You Need AccessAn OKFN project to increase open access.
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution 3.0 License