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Sandy Petersen's Cthulhu Mythos - Pathfinder
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Sandy Petersen's Cthulhu Mythos - Pathfinder


Sandy Petersen’s Cthulhu Mythos is the most comprehensive guide to including Lovecraftian elements in your Pathfinder Roleplaying game, written by the author of the groundbreaking Call of Cthulhu RPG, and developed primarily by James Jacobs (creative director of Paizo) and David N. Ross.

This massive 512 page tome contains over 100 monster stat blocks, dozens of which are Cthulhu Mythos monsters that have never been described for Pathfinder – including new rules for interacting with 25 different Great Old Ones and Outer Gods (they are much more than a simple encounter!).

This tome is much more than a mere bestiary, however. Inside you will find new rules for Insanity and Dreams; 40 new spells and 30 Rituals – a new magic ruleset; dozens of mythos items and artifacts; dozens of Mythos cults detailed; and four new player races from Lovecraft’s universe – Dreamlands Cats, Mythos Ghouls, Gnorri, and Zoogs – as well as new character options, professions, feats, and race options for them.

If you like Cthulhu, Pathfinder, Monsters, and Madness, you need this book!

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Reviews (3)
Discussions (9)
Customer avatar
E. S November 30, 2019 6:07 pm UTC
Anyone know why there are two PDFs to download?
Customer avatar
STEVEN K March 12, 2019 6:02 pm UTC
Hey I think my copy is defective. Half the pictures are blank and missing in my pdf
Customer avatar
Brett S August 15, 2018 12:03 am UTC
Any update on the 5E version?
Customer avatar
Miguel L August 25, 2018 10:57 am UTC
According to the devs's it's gonna come out. But no dates have been set, yet. It seems it'll have more content than the "PF" version.

Customer avatar
Soluman B August 13, 2018 4:44 pm UTC
I absolutly love the playable races in this book, however I noticed that when the Yaddithians were stated from Pathfinder (Specificaly Beastiary 6) you forgot the PC stats to play as them, any particular reason or was that an oversite?

Also have you considered expanding on the Mi-Go? Everyone mentions how they modify themselves but mostly just use it to explain their particular artistic interpretation, id love to see a mini book with all kinds of subclasses and variants.
Customer avatar
James E May 14, 2018 8:55 pm UTC
Disclaimer: I backed the Kickstarter campaign that created this book, and paid for both physical and digital copies of this product. At the time of this review, the physical version was not available. As a backer, I received my digital copy of this product significantly before its public release (but did not get it through DTRPG, which is why the review is here and not on the reviews page).

All right! Here's another weighty tome - the PDF version clocks in at 513 pages, counting covers and the like, and the interior is a full-color production with a generous sprinkling of original artwork. The book itself is divided into 10 chapters, and we're going to go through them in order

Chapter One is the 'Getting Started' bit and dives into a few important things, especially how to use the book, a brief overview of the mythos (for the two of you who don't already know), and a discussion on how to properly bring horror to what is, let's be honest here, a heroic fantasy game. If you're looking for...See more
Customer avatar
James E May 14, 2018 8:55 pm UTC
In Chapter Six, we're introduced to Mythos Items and Artifacts. These range from the relatively mundane (a teapot that can only poison drinks for some people) to the more worrying (flasks that can turn into proto-Shoggoths) to the quite concerning (a drink that heals diseases and physical ability damage, but starts to turn you into a monster unless you succeed on a Fort throw).

Outside of these "normal" items, we have some alien objects that can't be easily manufactured or recharged, only found. Some of these are mildly useful (a drink that makes you 1d10 years younger), others are more useful (a drug that lets you ask a question about the past or future, a gate that teleports to a specific other location, etc.).

Up next is one of my favorite parts of this product - the Books of the Cthulhu Mythos. I love eldritch grimoires, so having a section with them was a special treat. Actually reading these tomes requires research, and you get a bonus over time if you keep studying it....See more
Customer avatar
Clyde G May 14, 2018 5:43 pm UTC
When will the physical book be available, and/or will there be a POD option?
Customer avatar
Arthur P May 15, 2018 8:59 pm UTC
It will be available soon on our website, and I anticipate we'll offer it here as well.
Customer avatar
Clyde G May 16, 2018 10:11 pm UTC
Most excellent. Thanks. I missed the kickstarter, so...
Customer avatar
Christopher S July 15, 2018 1:12 pm UTC
Any updates on this?
Customer avatar
Alexandar K May 08, 2018 12:19 pm UTC
Both previews not working
Customer avatar
Bruce A May 08, 2018 1:17 am UTC
Any chance on a 5e compatible version coming out?
Customer avatar
Jeremy H May 09, 2018 9:12 am UTC
ditto on the 5e question... especially considering they're currently playtesting a Pathfinder 2e
Customer avatar
Arthur P May 09, 2018 9:44 pm UTC
There will be one - it is still in development, with an ETA to go to the printers this July.
Customer avatar
Marcelino S May 07, 2018 3:29 pm UTC
Full size preview isn't working
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87.8 MB
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File Last Updated:
August 21, 2018
This title was added to our catalog on May 07, 2018.