In the open gaming movement, a System Reference Document (SRD) is a reference for a

role-playing game A role-playing game (sometimes spelled roleplaying game, RPG) is a game in which players assume the roles of player character, characters in a fictional Setting (narrative), setting. Players take responsibility for acting out these roles within ...

's mechanics licensed under the Open Game License (OGL) to allow other publishers to make material compatible with that game.

History

The first SRD was published in 2000 by Wizards of the Coast (WotC) and is based on the third edition of '' Dungeons & Dragons''; it was revised following the release of ''D&D'' version 3.5 in 2003. That SRD allowed for third-party publishers to freely produce material compatible with ''D&D''. It also formed the basis for independent role-playing games from other publishers, such as '' Mutants & Masterminds'' and the '' Pathfinder Roleplaying Game'', among others. The 4th edition of ''D&D'', released in 2008, was not licensed under the OGL, but under the more restrictive Game System License. Subsequently, the 4e System Reference Document is quite different. Instead of the full texts of the OGL-licensed rules, the 4e SRD presents only lists of concepts and tables from the 4e rulebooks that may be used in a compatible product. The 5th edition of ''D&D'' was released in 2014. A new OGL-licensed SRD based on 5th edition was released in January 2016, and updated to version 5.1 in May 2016. Some other game systems, such as '' FATE'', the Mongoose Publishing editions of '' RuneQuest'', ''

Traveller Traveler(s), traveller(s), The Traveler(s), or The Traveller(s) may refer to: People Generic terms *One engaged in travel *Explorer, one who searches for the purpose of discovery of information or resources *Nomad, a member of a community withou ...

'', and '' Zweihänder Grim & Perilous RPG'' have also released their own mechanics under distinct OGL-licensed "System Reference Documents".

References

{{d20 D20 System