Updates & Advice to Boost Your Games

What's Inside?

Packed with rules options and three scenarios, the Call of Cthulhu: Keeper Companion has something for everyone, whether novices or veterans. The book is designed to help you get the most out of your games!

New Rules

The Call of Cthulhu: Keeper Companion contains a plethora of new and updated rules, including: new methods for creating investigators, revised Sanity rules, an investigator organization creation system, revised skills, optional rules for skill rolls, and new rules for combat and chases.

The Keeper Toolbox

The Keeper Toolbox includes information on running the game, designing scenarios, and easy ways to ‘spice up’ monsters and characters. The book also contains three new Call of Cthulhu scenarios, each showcasing the use of the new optional rules presented in the book:

New Scenarios
Little Miracles

A beginner-friendly scenario set near Arkham, concerning a missing professor from the Miskatonic University.
If I Had a Hammer

A comfortable Friday night at home turns into a nightmare.
What a Puzzler!

An investigative scenario about the new fad for jigsaw puzzles.
Everything You Need To Play
The Call of Cthulhu: Keeper Companion contains maps and handouts for each of the included scenarios. The book also provided revised investigator sheets and Pulp Cthulhu hero sheets, and a wealth of additional play aids.
This book is designed for use with the Call of Cthulhu: Keeper Rulebook.
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Product Footer
Footer Name:
- Publisher:
- Chaosium
- Year Released:
- 2026
- Ruleset:
- Call of Cthulhu 7th Edition
- Page Count:
- 226
- Format:
- Full Color Hardcover
- ISBN:
- 978-1-56882-628-8
- Authors:
- Mike Mason and Paul Fricker, with James Coquillat, Adam Gauntlett, and Al Smith
- Cover Artist:
- Samuel Marcelino
- Interior Artists:
- Camille Défarge, Susanah Grace, Nick Grey, Lin Hsiang, Clark Huggins, Luke Marcatili, Samuel Marcelino, Rhys Pugh, Nicola Silvani, Melissa Spandri, Joel Thomas, and Tomislav Tikalin.
- Cartography, Handouts & Diagrams:
- Matt Ryan and John Malcolm
- Design and Layout:
- Chandler Kennedy
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Call of Cthulhu: Keeper Companion
The Keeper companion is a great book for both new and old keepers giving new idea and Optional rules to use to help players and yourself out a bit. The new sheets are very nice and the new rules work well with the system and are optional you don't have to use them if you don't want to. The Artwork is top notch as always and the 3 included Scenarios sound fun (can't wait to run them)
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Call of Cthulhu Keeper Companion
I’ve been playing Call of Cthulhu since 1982 and I’m fond of the BRP system in its many iterations. Despite all these years, I was very excited by the release of this Keeper Companion and its promises of optional revised rules. After reading, I would give it three stars out of five. The adventures look interesting. The chase rules are welcome. Broadly speaking, the Alternative Investigator Creation and the Game System chapters provide some interesting ideas, but I must admit I expected more. I’m fully aware of the fact that mofifying a classical RPG like Call of Cthulhu isn’t easy, so I won’t complain about these chapters. However, I’m deeply disappointed by the Sanity chapter and the choice to use « Changed » instead of « Insanity ». It sounds so dumb to me and so revealing about the editorial policy of Chaosium. The text box page 85 says it all, as do this « X-Card thing » and this obsession for inclusivity in the artworks. I’ve already had that thought, but this book is the last straw for me. Release after release, I have to the conclusion that this 7th edition isn’t for me. I’m done with it. I’ll stay with the previous ones. I long hesitated to write this review because I know it won’t change the way of thinking of the authors, but as a faithful customer for years I think I needed to tell what’s on my mind.














