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Cults of Cthulhu - Leatherette

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Cthulhu Calls!

At long last, the intricacies of the nefarious Cthulhu cult are revealed!

Chaosium Unveiled: Inside Cults of Cthulhu

Watch the unveiling video to see the book for yourself. Remember that you get the PDF when getting the physical copy.

What’s Inside?

Cults of Cthulhu gives you the rules to inject fully-realized and unique Cthulhu cults directly into your campaigns, and create your own antagonists. The tome also contains three scenarios featuring insidious Cthulhu cults spanning from the Gaslight era to the modern day.

Cult Leaders

Secrets of the Cthulhu Cults

Secrets of the Cthulhu Cults

A detailed history of the various cults of Cthulhu, spanning from the Victorian Era all the way to the modern day - perfect for any era of Call of Cthulhu play. The book also includes five distinct cults, ready for use in your games.

Conflict Rises

Design Your Own Cult

Creating a Cult

Detailed guidance on creating your own bespoke Cthulhu cult. Included is a ‘Cults Worksheet’ to track the history of your cult, their inspirations, resources, locations, and much more.

Example Cult

A Suite of Scenarios

Three scenarios concerning Cthulhu cults across time.

Loki's Gift

Loki's Gift

London, 1896. A tragedy in an upper-class family sees the investigators employed to look into the truth behind a beloved son’s demise.

Angel's Thirst

Angel's Thirst

Los Ángeles, 1923. The search for a missing taxi driver kicks off an investigation tainted by the criminal underworld, and perhaps something darker.

A God's Dream

A God's Dream

Chicago, 2021. When a former colleague is found frozen to death and clutching a mysterious artifact, the investigators begin to question the nature of their free will.

Downloads for this Product

Keeper Reference Booklet
Keeper Map Pack
Player Handouts and Maps
Plain Text Handouts
NPC Portraits

Mature Readers Warning Notice

Watch Live Play: Cults of Cthulhu

Curious about the scenarios? Watch the Live Play on the Stream of Chaos

What The Critics Say

  • "There are 370 pages in Cults of Cthulhu and the detail and information packed into them really is extraordinary... There is absolutely no question in my mind that Cults of Cthulhu is an essential addition to any Call of Cthulhu Keeper or Investigator’s bookshelf, as well as that of anyone with an interest in the Cthulhu Mythos generally. Get a copy as soon as you can."

    — GameOnAUS, A Cult Above - Cults of Cthulhu RPG Sourcebook Reviewed.

  • "This is a very impressive book, and you will certainly get value for money."

    — M.T. Black, Twitter Review.

  • "A surprisingly detailed sourcebook to the point where its appeal goes beyond the RPG elements and it would be interesting reading for any fan of the Cthulhu Mythos—making it an appealing gift for the Lovecraftian Horror fan in your life."

    — Royce Wilson, The GOA 2021 Table-Top RPG Gift Guide.

  • "A compendious and superlatively produced supplement for Call of Cthulhu, devoted to the cults devoting themselves and their sanity to Big Squidface, across the ages and the continents. If there's one book needed for Keepers to put awe and terror back into their Cthulhu-focused campaigns, it's this one... [a] fabulous piece of work that belongs on the shelf of every CoC gamer, and probably a great many others besides - it's that useful, and that good."

    — Paul StJohn Mackintosh, RPGNet, Review of Cults of Cthulhu.

  • "An important part of the Cthulhu Mythos mystery ecology... a fantastic book for Keepers"

    — Charles Dunwoody, EN World, A Review of Cults of Cthulhu.

  • "A robust book that offers a lot for the gaming table."

    — British Fantasy Society, Cults of Cthulhu by Chaosium. RPG review.

  • "An excellent supplement for those looking to dive into the history of the cult and includes three very solid adventures focusing on a trio of very different groups of worshipers of the Great Old One."

    — The Gaming Gang, Cults of Cthulhu Reviewed.

  • "One of the most substantive supplements released for the game"

    — Refereeing & Reflection, Call of the Cults.

  • "Cults of Cthulhu takes the Keeper back to Lovecraft’s The Call of Cthulhu to look at some of the roleplaying game’s fundamentals and inspirations with fresh eyes. The result is an excellent examination of both cults and Cthulhu, supporting the Keeper with advice and the means to create her own cults and cultists, as well as backing everything up with examples and scenarios."

    — Reviews from R'lyeh, Faiths of Fear.

  • "Cthulhu is gonna be the main draw for a game called Call of "Cthulhu, so why not have some humans doing bad things for him? This book is a solid resource that, even if I just wanted some quick adventures and handouts, is well worth the price of admission. 100%."

    — Edward Alan Kabara, RPGNet Review of Cults of Cthulhu.

  • "Cults of Cthulhu is a book I didn’t know I wanted or even needed, but now that I’ve had it in my possession, and read it, I don’t think I’ll ever let it go. Cults of Cthulhu is one of the most entertaining RPG sourcebooks I’ve ever read. HIGHLY RECOMMENDED!"

    — EuroCultAV, Tabletop Review – A Time to Harvest/Cults of Cthulhu – Chaosium.

  • "One of the most important books any game master can have for any system they are running."

    — Game On!, Every Game Master NEEDS This Book - Cults Of Cthulhu (Youtube).

  • "Any Cthulhu fan would have to be crazy not to get it... Let’s face it; cults are fun, and whether yours worships The Goat with a Thousand Young, The Crawling Chaos, or He who Shall not be Named, this book contains the means to make it realistic, dynamic and memorable. Recommended.”

    — Stygian Muse, Cults of Cthulhu: Humanising Cosmic Horror..

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Physical Product Settings

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United States: [Y]
United Kingdom: [Y]
Europe: [Y]
Australia: [Y]
Canada: [N]

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Lulu Product Name: [Nameless Horrors - POD]
Lulu Product Link: [/nameless-horrors-pod/]

Is PDF Available: [Y]
PDF Product Name: [Cults of Cthulhu - PDF]
PDF Product Link: [/cults-of-cthulhu-pdf/]

PDF Settings

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Physical Product Name: [Cults of Cthulhu - PF]
Physical Product Link: [/cults-of-cthulhu-pdf/]

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Year Released:
Call of Cthulhu 7th Edition
Full Color Leatherette
Page Count:
Chris Lackey, Mike Mason
Cover Artist:
Loïc Muzy
Interior Artists:
Alberto Bontempi, Thomas Brown, Irene Cano, Kristina Carroll, Caleb Cleveland, Stephen Cornu, Kring Demetrio, Emanuele Desiati, Michael Ellis, Andrey Fetisov, Doruk Golcu, Nicholas Grey, Patrik Hell, Kali Houisse, Pat Loboyko, Sam Lofti, Ernest Mason
Interior Artists (Continued):
Loïc Muzy, Aleks Shcherbakov, John Sumrow, Johnathan Torres, Arrigo Verderosa
Cartography and Handouts:
Matt Ryan
Nicholas Nacario