The core rules were written by
Steve Perrin as part of his game
RuneQuest. It was
Greg Stafford's idea to simplify the rules (eliminating such mechanics as Strike Ranks and Hit Locations) and issue them in a 16-page booklet called
Basic Role-Playing. Since the first
BRP release, designers including
Sandy Petersen,
Lynn Willis, and
Steve Henderson have contributed to the system. The system was notable for being the first role-playing game system to introduce a full skill system to characters regardless of their profession. This was developed in
RuneQuest but was also later adopted by the more skill-oriented
Call of Cthulhu RPG.
BRP was conceived of as a generic system. Specific rule systems for support differing genres could be added to the core rules in a modular fashion. In order to underscore this, in 1982 Chaosium released the
Worlds of Wonder box set, which contained a revised main booklet and several booklets providing the additional rules for playing in specific genres. The
superhero-themed
Superworld originated as part of this set. A third edition of the core booklet, now entitled
Basic Roleplaying: The Chaosium System, was released in 2002. In 2004, Chaosium began publishing the
Basic Roleplaying monographs, a series of paperback booklets. The first four monographs (
Players Book,
Magic Book,
Creatures Book, and
Gamemaster Book) was the same as
RuneQuest third Edition, but with trademarked elements removed, as Chaosium had lost the rights to the name but retained copyright to the rules text. Additional monographs allowing for new mechanics, thereby extending the system to other genres, were released in the following years. Many of these monographs reproduced rules from other Chaosium-published
BRP games that had gone out of print. Jason Durall and Sam Johnson gathered up previous works and updated them to a new edition. published in 2008. This comprehensive book,
Basic Roleplaying: The Chaosium System was nicknamed the "Big Gold Book". It allowed game masters to build their own game out of the included subsystems. A quickstart booklet for new players accompanied it. In 2011, it was updated to a second edition. In 2020, Chaosium released
Basic Roleplaying in abbreviated form (vs. the 2008 edition) as a
System Reference Document (SRD). A new edition, updating the 2008/2011 editions and titled
Basic Roleplaying: Universal Game Engine, appeared in 2023, initially as a
PDF, later as a hardbound book, and later still as a standalone SRD under the "ORC License" (Open RPG Creative) and has since spun off a market of multiple commercial products, both standalone BRP adventures and full-fledged RPGs, published under the terms of the ORC license. The full text (not the art, trade dress, etc.) of the PDF and print version was also ORC-licensed as a SRD. ==Licensed adaptations==