Call of Cthulhu Keeper Rulebook - PDF

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Horror Roleplaying in the Worlds of H.P. Lovecraft

The Old Ones ruled the earth aeons before the rise of man. Traces of their cyclopean cities can still be found on remote islands, buried amid the shifting desert sands, and in the frozen wastes of the polar extremes. Originally they came to this world from the stars. They sleep now, some deep within the earth or beneath the sea. When the stars are right they shall again walk the earth.

Call of Cthulhu is a tabletop roleplaying game based upon the worlds of H. P. Lovecraft. It is a game of secrets, mysteries, and horror. Playing the role of steadfast investigators, you travel to strange and dangerous places, uncover foul plots, and stand against the terrors of the Cthulhu Mythos. You encounter sanity-blasting entities, monsters, and insane cultists. Within strange and forgotten tomes of lore you discover revelations that man was not meant to know. You and your companions may very well decide the fate of the world.

This book, the Keeper Rulebook, contains the core rules, background, guidance, spells, and monsters of the game. It is intended for use by the Keeper of Arcane Lore (the Keeper) — that player who will present the adventure to the other players. You must have at least one copy of this book to play Call of Cthulhu. The other players, the Investigators, should have one or more copies of the Investigator Handbook, containing expanded rules for character creation, skills, occupations, equipment, and more.

Call of Cthulhu, 7th edition, is backwards-compatible with all other available Chaosium titles.

Chaosium Unveiled: Inside the Call of Cthulhu Keeper Rulebook

Download the index for the Investigator's Handbook and the Keeper's Handbook here.

What the Critics Say

"The stars are right for the best edition of the best role-playing game in the world."—Antonios S. Review, RPGNet.

"Call of Cthulhu is now the Pepsi of RPG franchises, alongside D&D’s Coke, and the game’s success is part of the revival of Lovecraft and Lovecraftian fiction."—Paul StJohn Mackintosh, “The Legacy of Lovecraft” in greydogtales.

"The Call of Cthulhu RPG has been in print from the same publisher since 1981. It is the horror RPG that all other horror games are judged by."—Powell’s Bookstore, Portland OR.

"Call of Cthulhu has been called “one of the best roleplaying games of all time” (Geek & Sundry). But something that’s overlooked about this classic horror RPG… is that it’s also one of the most versatile and well-researched historical RPGs around... I mean honestly, you can now play CoC in more time periods than your average season of Dr Who. "—Games Vs Play.

"…one of the most iconic tabletop roleplaying games of all time."—

"The ultimate horror RPG, Call of Cthulhu is a stone-cold classic of the tabletop."—Tabletop Gaming Magazine (UK).

"God, I love this book... Basically, everything you’d want from a new version of your favorite horror game and the best iteration to date."—Vintage RPG.

"It almost destroyed my life and career"—George RR Martin (Game of Thrones).

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PDF Product Name: [RuneQuest: Roleplaying in Glorantha - PDF]
PDF Product Link: [/call-of-cthulhu-keeper-rulebook-7th-ed-hardcover/]

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Physical Product Name: [Call of Cthulhu - Keeper Rulebook - Hardcover]
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Color Hardcover with PDF
Sandy Petersen, Mike Mason, Paul Fricker, and Lynn Willis
Cover Artist:
Sam Lamont
Jonathan Wyke, Paul Carrick, Rob Gould, Fran.ois Launet, Victor Leza, Charles Wong, Mike Perry, Nicholas Cloister, Antonio Luis, Kalli Schulz; Interior Illustrations: Rachel Kahn, Grilla, Chris Huth, Lo.c Muzy, Paul Carrick, Scott Neil, Jonathan Wyke
Steff Worthington
  • 5
    Ideal rulebook

    Posted by Nikita Karatun on 3rd Apr 2020

    It is just perfect! The structure, the language, the design, the pictures, the quality of the files! Navigation works like a charm, so easy to find your way around. Special thank's for mobi and epub files. To be honest I hate pdf format so much, almost all table top rpgs rulebooks and scenarios are published in it. It's completely insufferable to read them on mobile phone or on standard screen size e-reader and no way to convert them to decent readable format... I'm so glad that you publish your rulebooks in convenient readable formats! Hopefully more and more materials will be published that way!

  • 5
    Fantastic PDF, or MOBI / EPUB / PRC

    Posted by G. Ramos on 13th Jun 2016

    This is one of the best PDFs I've ever seen of a core rulebook. It has been carefully laid out for readability, includes chapter / section breaks, and comes in multiple formats. I dropped the PDF onto my iPad and phone, the prc onto my Kindle, and the EPUB for working with the text. Best of all, the PDF is not secure, so you can manipulate the pages or extract them to make your own reference documents. This was worth every penny!