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Raiders of R’lyeh: Gothic Black & White Edition
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Raiders of R’lyeh: Gothic Black & White Edition

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Watermarked PDF + Hardcover, Standard Color Book


We are nearing completion on FROM THE TIDELESS SEA, our first big expansion (at 280 pages and in final layout) for RAIDERS of R’LYEH! More here:


UPDATE: For those who want the complete rules plus expanded gamemaster’s resources, the Raiders of R’lyeh: Gamemaster’s Guide & Complete Rules is now available in both digital and print editions. (Note that the Gamemaster’s Guide & Complete Rules includes the same content as the Gothic Black & White edition, but with the addition of the gamemaster’s material.)

RAIDERS of R’LYEH is a stand-alone roleplaying game and sourcebook in which mercenary rogues explore forbidden frontiers, unearth ancient artifacts, and outwit villainous scum. Derived partly from the Runequest rules that have been released under the Open Game License, the game is crafted to emulate not only adventure in the CTHULHU MYTHOS of H.P. Lovecraft and his circle of influences, but especially the savage and evocative feel of Robert E. Howard’s Mythos and Weird menace stories.

Attention has been made to keep the game mechanics compatible with other percentile systems — while innovating additional rulesets unique to the setting and atmosphere — so those players wishing only to use Raiders of R’lyeh as an Edwardian era adventure sourcebook will have a massive global setting to explore and use in their preexisting Mythos campaign, as well as modular adventure, monster and scenario resources for gaming in 1900-1913. Those players wanting a standalone rulebook with its adventure modes of play, will have a complete toolkit for interacting with the Cthulhu Mythos.

  • A complete sourcebook for expeditions, intrigues and adventures in the pre-Great War Edwardian period
  • A wealth of resources about technology, inventions, architecture, weapons, gear, currencies, class structure, etiquette, vehicles, mounts, ports of call, and travel for the period
  • Guidelines for facilitating node-based investigation
  • A robust and extensive chapter on magic, sorcerers, occult works and artifacts from the world of 1910
  • A simple yet robust sanity system integrated into the PC and NPC motives and bonds
  • Options for “pulpier” occultists and occult detectives adventurers — akin to much of Lovecraft’s original material and most of Howard’s, and to the occult detectives in the works of various weird writers such as William Hope Hodgson, Arthur Machen, and so on — for players who want to incorporate pulpier magic into their mythos game
  • New adventurer roles, drives, bonds, and special abilities for players that emulate the period and feel of Weird menace and adventure
  • And much more: new skills, new gear, basic and tactical combat rules, chase rules, etc.
  • Includes an OGL and bibliography of sources, with support for open-ended customization, enabling designers to adapt the game and hack their own settings and derived rules

At 264 pages, BW, Raiders of R’lyeh contains a complete toolkit to build and run your own adventures set in the Mythos!

ABOUT THE PRINT EDITION: What is the difference between the Hardcover B&W Book and Hardcover Color Book (Standard Heavyweight)?

The “Hardcover B&W Books” are printed on 50# white paper, while the “Hardcover Color Book (Standard Heavyweight)” uses a thicker 70# white paper which has better page opacity. Please note that despite being listed as Color, both editions are in black & white. However, some customers notice a discernible difference in quality in the thicker edition, so that option is offered here.

(NOTE that the print edition cover may be previewed at

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Discussions (1)
Customer avatar
Dany L August 08, 2020 2:21 pm UTC
Just found this game, it look very promising. Can’t wait to Read it. I really love the cover of this version. Is there a way to get the Pdf only for the gamemaster guide, or I must absolutely buy the print? Ho, and I now fallow you on Kickstarter, so if you start a new campaign I will certainly pledge. Can’t wait to get more.
Customer avatar
Quentin B October 13, 2020 5:08 pm UTC
Dany L, apologies for just seeing this now. Go ahead and send me an email at mail AT thecipherbureau DOT com and we’ll see what we can do. Thank you so much for the support.
Customer avatar
Dany L October 21, 2020 10:50 am UTC
No worries. After reading your comment, I purchased a copy of the GM Guide (pdf + standard print) You did an amazing work, it’s my to help you creat more. Thanks
Customer avatar
Quentin B November 02, 2020 8:07 pm UTC
Thank you for the endorsement, Dany L! Thrilled to hear you like the game.
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File Last Updated:
April 23, 2018
This title was added to our catalog on August 02, 2018.
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