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The Grand Grimoire of Cthulhu Mythos Magic Hardcover – July 1, 2017

by Chaosium Inc (Author), Mike Mason (Author, Editor), Matt Sanderson (Author)
4.8 4.8 out of 5 stars 529 ratings
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Over 550 spells of dire consequences, secrets, and unfathomable power! Here are gathered spells drawn from over thirty years of Call of Cthulhu supplements and scenarios. Each spell has been revised for the Call of Cthulhu 7th edition game, including optional Deeper Magic for the most powerful of Mythos sorcerers and monsters, with which to beguile and confound investigators. Packed full of advice and guidance on diverse matters including spell names, elements of spell casting, magical components, and astronomical considerations. Plus flawed spells, ley lines, folk magic, and the magic of the Dreamlands. Use this grimoire as a resource, a play aid, and as inspiration when designing scenarios. The Grand Grimoire of Cthulhu Mythos Magic is an essential supplement for Keepers of Arcane Lore. Requires the Call of Cthulhu Rulebook.
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  1. Print length
    200 pages
  2. Language
    English
  3. Publisher
    Chaosium Inc.
  4. Publication date
    July 1, 2017
  5. Dimensions
    8.5 x 0.6 x 10.8 inches
  6. ISBN-10
    156882405X
  7. ISBN-13
    978-1568824055
  8. See all details
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    In Call of Cthulhu, you take on the role of everyday people who become investigators of the unknown - whether they are prepared or not. The mysterious places, people, and situations you encounter are often not what they seem - you and your friends are the only thing standing in the way of diabolical cults and cosmic monsters from beyond space.

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From the Publisher

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What is Call of Cthulhu?

Call of Cthulhu is Chaosium’s roleplaying game of mystery and horror set within the world of the Cthulhu Mythos. Players take on the role of investigators of the strange, arcane, and unknown: regular people making a stand despite the cost to body and soul. Against weird cults, bizarre magic, and otherworldly monsters, only they can save humanity and the world from the terrors from beyond.

The Grand Grimoire of Cthulhu Mythos Magic

Over 550 spells of dire consequences, secrets, and unfathomable power!

Contained within are gathered spells drawn from over thirty years of Call of Cthulhu supplements and scenarios. Each spell has been revised for the Call of Cthulhu 7th Edition game, including optional Deeper Magic for the most powerful of Mythos sorcerers and monsters, with which to beguile and confound investigators.

Grand_Grimoire_Back_Cover_for_web__51899.jpg

A Glimpse of the Magic Inside

Packed full of advice and guidance on diverse matters including spell names, elements of spell casting, magical components, and astronomical considerations. Plus flawed spells, ley lines, folk magic, and the magic of the Dreamlands. Use this grimoire as a resource, a play aid, and as inspiration when designing scenarios. The Grand Grimoire of Cthulhu Mythos Magic is an essential supplement for Keepers of Arcane Lore.

Grand_Grimoire_Back_Cover_for_web__51899.jpg

A Glimpse of the Magic Inside

advice.png

A Glimpse of the Magic Inside

folk-magic.png

A Glimpse of the Magic Inside

spell-bind-shoggoth.png

A Glimpse of the Magic Inside

0817522c-2f11-42c7-95f5-88b13a30de58.__CR572,428,857,1713_PT0_SX150_V1___.jpg 73b543c5-2c89-4911-94f2-a27f48a213a3.__CR913,435,2174,4348_PT0_SX150_V1___.jpg 305d6f7a-71e1-4dae-8b90-fa0cbb56841e.__CR353,0,1294,2588_PT0_SX150_V1___.jpg aedda7f6-099f-4c96-bdf4-91d6016878de.__CR918,433,2164,4328_PT0_SX150_V1___.jpg 02195796-c664-4c56-a8f6-590874279ccd.__CR412,118,1176,2353_PT0_SX150_V1___.jpg Grand_Grimoire_Front_Cover_for_website__19359.jpg
Call of Cthulhu Starter Set Call of Cthulhu Keeper Rulebook Call of Cthulhu Investigators Handbook Call of Cthulhu Keeper Screen Pack Doors to Darkness The Grand Grimoire of Cthulhu Mythos Magic
Customer Reviews
4.8 out of 5 stars
271
4.9 out of 5 stars
1,887
4.9 out of 5 stars
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4.9 out of 5 stars
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4.9 out of 5 stars
409
4.8 out of 5 stars
529
Price $29.99 $40.28 $32.52 $21.81 $24.72 $27.47
What is this? An beginning tool to learn to play Call of Cthulhu. Essential tool for a Keeper of Arcane Lore (the Keeper) — that player who will present the adventure to the other players. The core game book for Call of Cthulhu players. A premium play aid for Call of Cthulhu Keepers (Game Masters). A collection of five scenarios for beginner keepers Contained within are gathered spells drawn from over thirty years of Call of Cthulhu supplements and scenarios. Each spell has been revised for the Call of Cthulhu 7th Edition game
Core Rules ✓ ✓ ✓ ✓
Group Adventures ✓ ✓ ✓ ✓
Solo Adventures ✓
Starter Set ✓

Product details

  • Publisher ‏ : ‎ Chaosium Inc. (July 1, 2017)
  • Language ‏ : ‎ English
  • Hardcover ‏ : ‎ 200 pages
  • ISBN-10 ‏ : ‎ 156882405X
  • ISBN-13 ‏ : ‎ 978-1568824055
  • Item Weight ‏ : ‎ 1.8 pounds
  • Dimensions ‏ : ‎ 8.5 x 0.6 x 10.8 inches
  • Customer Reviews:
    4.8 4.8 out of 5 stars 529 ratings

About the authors

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  1. Mike Mason

    Mike Mason

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    Mike Mason is an award-winning game developer and writer, and also the creative director for the Call of Cthulhu tabletop roleplaying game. Mike is the designer and writer of the Call of Cthulhu 7th edition rules, Pulp Cthulhu, the Call of Cthulhu Starter Set, and has contributed to and edited numerous Call of Cthulhu books, as well as for other game systems. His work can be found in the revised Masks of Nyarlathotep, Petersen's Abominations, Down Darker Trails, Cthulhu Dark Ages, Berlin: The Wicked City, and many others. Previously, Mike co-wrote Dark Heresy, the Warhammer 40K tabletop RPG for Games Workshop.

    See more on the author's page
  2. Chaosium Inc

    Chaosium Inc

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    Our award-winning roleplaying games, boardgames, and fiction have been acclaimed as some of the most engaging and innovative of all time. For more than forty years, Chaosium Inc. has captivated gamers, readers and mythic adventurers worldwide. The roleplaying games RuneQuest, Call of Cthulhu, King Arthur Pendragon, HeroQuest – as well as such classic board and card games as White Bear & Red Moon (later called Dragon Pass), Nomad Gods, Arkham Horror, Credo, and Mythos all originated at Chaosium. Chaosium celebrated its 40th anniversary in 2015. In 2016 Greg Stafford's World of Glorantha celebrated its 50th! In 2018, it was 40 years since the debut of RuneQuest, and in 2021 it will be the 40th anniversary of Call of Cthulhu.

    Read more at: www.chaosium.com/about-us

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Customer reviews

4.8 out of 5 stars
4.8 out of 5
529 global ratings

Top reviews from the United States

Anthony Fulk
5.0 out of 5 stars Great book!
Reviewed in the United States on August 13, 2023
Verified Purchase
This book is amazing. Beautiful, informative and a useful tool for Cthulhu Mythos spells. The usual high quality 7th edition Call of Cthulhu book that we've come to love. Much better than my backwards and upside down Investigator Book that shipped together with this one.
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Random Haiducul
5.0 out of 5 stars A very thoughtful and useful 7e book
Reviewed in the United States on September 18, 2017
Verified Purchase
Well done and well organized. One of the issues I've always had with CoC is the relative paucity of spells and the fact that there was little variety between the various sorcerers in terms of their capabilities. How many times can you describe the effects of shrivel or Voorish sign before there familiarity breeds contempt? (answer: not too many, really). This book not only collects all the various spells, but it also gives suggestions for alternate names and different effects depending on whether the caster is willing to go all out into the outer darkness in preparing the spell. Combined with an excellent introduction and organization of the spells into various types (extend life, offense, protection, summoning, etc.), the book is more than just a 7e update of spells, or even a collection of spells from a variety of sources, but it is also a good way to restore the mystery and danger of spells for any CoC game. I've been using it to rerun Fungi from Yuggoth, and it is amazing how much just a couple of different spells in the hands of bad guys can change the flavor and direction of a story.
25 people found this helpful
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DeWayne Brown
5.0 out of 5 stars Handy and needed reference book
Reviewed in the United States on March 30, 2023
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A well put together resource, a must for every keeper
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lior
5.0 out of 5 stars Great supplment - use as a refrence book
Reviewed in the United States on February 1, 2021
Verified Purchase
easily my favorite addition to my CoC games.
basicly Its a refrence book, if you're looking for anything other than that, than this is not the supplment for you. If you are, than this is by far the best source for CoC magic. There are a few contridictions between this book and the Keepers guide - I tend to stick closer to this one, but honestly that's just a personal prefrence and the diffrences I noticed are very minor (e.g. taking d6 or d10 sanity from casting a certin spell)

It is not a 'must have', but it makes a great addition
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Brian
4.0 out of 5 stars Another good book for Call of Cthulhu
Reviewed in the United States on November 15, 2020
Verified Purchase
If you run Call of Cthulhu, you will eventually need some magic spells. Not only does Chaosium collect five-hundred magical spells for us, but they also give us everything we would ever want to know about casting (fictional) magic: Leylines, magical components, times of magic, folk magic, it's all here.

The spells are sorted alphabetically but there is an index that sorts them by category: Banishment, combat, communications, dreams, time, making monsters, folk magic, etc. This is very helpful, especially if you're trying to stock a tome with a variety of spells.

The book delivers on its promise of magic spells. There are more spells in this book than you'd probably ever be able to use in your CoC game. If you have a spell idea, I'd be darned if you couldn't find a similar spell in here. Not only are the spells, costs, and mechanics laid out, but a fictional description of the spell, and other names for the spell, are given.

The book itself is beautiful and looks great on the shelf, but if you've been buying Chaosium's books lately you probably don't need me to tell you that. This company has been putting out nothing but shelf-candy lately, and I hope they keep going!

There are some things I'd have liked to have seen. Maybe a section about how to fill out a grimoire, or even a few "spell packages" that'd help us quickly create sorcerers. I'd have also liked some logistical info about some of the spells: It's obvious you'd learn 'Create Yellow Sign' from the King in Yellow or some follower thereof, but where would you learn 'Wrath of Ages?'

Another negative is that many of the spells feel "samey" to me. I've found at least four or five spells that all immobilize a target in slightly different ways, and that's just from doing a casual glance. Another annoyance is that quite a few spells refer you to the Malleus Monstrorum, which is not released in hardback yet, and makes the book feel incomplete. It also has to be said that if magic is rare in your game, you probably don't need 500-something spells.

For those reasons, I can't give the book five stars. It does what it sets out to do, but falls short of being a grand slam in my book. I find I don't pull this book off the shelf very often, I'm sad to say. But it is still an enjoyable read, and if you run a magic-heavy game of CoC it will be invaluable to you.
9 people found this helpful
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autotech
5.0 out of 5 stars Great resource
Reviewed in the United States on May 29, 2020
Verified Purchase
This is a great supplement for anyone looking to add a more spells to their game. The book is well organized, and splits the spells based on the kind of spell it is i.e. banishment, combat, enchantment etc. The book also discusses things such as spell components, ley lines, phases of the moon, and other astronomical factors. If you want to make the magic in your campaign feel more lovecraftian this is a good resource. I also enjoyed that they added a couple of creatures, and NPC's interspersed between the spells. Not many, but it was unexpected and a nice touch.
2 people found this helpful
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Gerard B.
5.0 out of 5 stars Cool book and the cover looks awesome
Reviewed in the United States on May 12, 2020
Verified Purchase
This was on my girlfriend’s wish list... she loves it. I think it looks really good, too.

It’s great to have a book you want that has a cool cover, too.
2 people found this helpful
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Walter G
5.0 out of 5 stars Works as advertised
Reviewed in the United States on June 12, 2019
Verified Purchase
The spells works perfectly well. I was able to summon a lesser deamon and have it kidnap the goats of my neighbor. A must have in case of annoying neighborhood!!!
74 people found this helpful
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Top reviews from other countries

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Luis vargas ahumada
5.0 out of 5 stars Excelente compra
Reviewed in Mexico on February 3, 2023
Verified Purchase
Excelente libro, cómo siempre es una delicia visual, pasta dura, gráficos, toda una gama de magia y conjuros para el mejor juego de rol :)
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Comrade Leader
5.0 out of 5 stars Extremely useful
Reviewed in the United Kingdom on September 10, 2021
Verified Purchase
I am a regular keeper for multiple Call of Cthulhu player groups. This book is extremely good for direct information about spells and magic etc., but is also very useful for inspiring ideas and themes of my own. It is very worthwhile as a keeper. As an investigator player it might give too much information....but then all informative book would do that, really. An excellent book.
One person found this helpful
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Sean Aube
5.0 out of 5 stars B+
Reviewed in Canada on January 13, 2020
Verified Purchase
Bought this for my brother inlaw. He enjoyed it
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Luis Felipe Ovelar
5.0 out of 5 stars Produto de qualidade ótima!
Reviewed in Brazil on September 28, 2019
Verified Purchase
Livro adoravelmente magnífico! Ilustrações muito boas e possui todo tipo de magia para acrescentar nas aventuras e criação de cultos para aventuras do Mythos!
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Erik
5.0 out of 5 stars Get this one
Reviewed in Australia on May 2, 2021
Verified Purchase
If you're looking for the thing that is going to spice up your games, this is the book.

If you don't understand the magic of hpl and you need some insight, this is the book.

If you want a nudge further down the rabbit hole of the Cthulhu mythos, this book will help you get there.
One person found this helpful
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