Sandy Petersen's Cthulhu Mythos for Pathfinder

Created by Sandy Petersen

Sandy Petersen's Cthulhu Mythos for Pathfinder
Photo original
2,328 backers pledged $203,503.00 on Kickstarter

The definitive guide by Sandy Petersen. New rules and over 100 monsters for the Cthulhu Mythos plus tons of 28mm scale miniatures.

Raised in Kickstarter
$203,503.00 / 2,328 backers
Raised in BackerKit
$73,414.49 / 2,394 backers

Learn About Our Project:

Sandy Petersen is the undisputed authority on the Cthulhu Mythos in games as the author of the groundbreaking game Call of Cthulhu, the first game ever to bring HP Lovecraft’s work to the gaming world.

He now proudly presents Sandy Petersen's Cthulhu Mythos for Pathfinder, by Petersen Games. This is the definitive and ultimate guide to bringing Lovecraft to the high fantasy sword and sorcery worlds played using the Pathfinder rule system. 

Your band of heroes can now fight (and maybe even defeat) monstrous horrors and bizarre, inhumanly advanced races in adventures featuring these unique entities, their magics, and the alien technologies accurately portrayed from Lovecraftian works!

We're offering a lot with this Kickstarter. Some of you have asked how to add copies of the book or more sets of miniatures to your pledge. It's easy - just add the price of the item you want to add to your pledge after clicking the Manage button in the upper right corner of this page.

Or just use this convenient copy we made!

For easy reference, here's a list of Add-On prices:

  • Add $35 per print copy of the book
  • Add $70 per Dwellers of the Dreamlands Campaign Collection
  • Add $70 per Former Human Horrors Campaign Collection
  • Add $70 per Cosmic Nightmares Campaign Collection
  • Add $70 per Shadows Out of Time Campaign Collection
  • Add $35 per Primal Horrors Adventure Kit
  • Add $35 per Foulness From the Stars Adventure Kit
  • Add $35 per Shadows Out of Space Adventure Kit
  • Add $35 per Dwellers of the Abyss Adventure Kit
  • Add $15 per Cultist Horde Pack
  • Add $15 per Deep One Horde Pack
  • Add $15 per Mythos Ghast Horde Pack
  • Add $15 per Moonbeast Horde Pack
  • Add $15 per Mutant Horde Pack
  • Add $15 per Tcho-Tcho Horde Pack
  • Add $15 per Mythos Ghoul Horde Pack
  • Add $35 per Designer's Collectors Kit
  • Add $30 per Hero Lab license
  • Add $15 per Glow in the Dark Elder Thing
  • Add $25 per Monster Deck

For example: If you have selected the HERO PLEDGE option and want two extra Horde Packs, just raise your pledge from $200 to $230.


  • A bestiary with over 100 entries, almost half never before seen in a Pathfinder book before.  
  • Over 25 Mythos Entities: Creatures in the Pathfinder Bestiaries I-V now authoritatively revised & updated in this book. Additionally, the original entries as found in the Bestiaries I-V are also included for easy reference and comparison. 
  • Over 50 NEW Mythos Entries: Creatures from the Cthulhu Mythos that have never before been published in any Pathfinder Bestiary.
  • Over 40 'Unusual Suspects': Creatures that could (and maybe should) be in the Cthulhu Mythos, found in the pages of the current Pathfinder Bestiaries. Some have been updated to reflect our new rules. 
  • Adventures: Plot Hooks and Campaign starters by Sandy Petersen and others. 
  • How to run horror in a heroic sword and sorcery setting by Sandy Petersen.
  • Mythos Alien and Bizarre Technology (Stretch Goal; Funded!)
  • New Expansive Insanity Rules (Stretch Goal; Funded!)
  • The Necronomicon and other Tomes (Stretch Goal; Funded!)
  • New Rituals and Spells (Stretch Goal; Funded!)
  • Archetypes and Class Options for Base Classes (Stretch Goal; Funded!)
  • Cults of Cthulhu and Other Great Old Ones (Stretch Goal; Funded!)
  • Mythos Magic Items and Artifacts (Stretch Goal; Funded!)
  • Aklo Language Essay (Stretch Goal; Funded!)
  • Mythos Ghouls as Player Characters (Stretch Goal; Funded!)
  • Mythos Eidolons, Familiars and Animal Companions (Stretch Goal; Funded!)
  • Tcho-Tchos! (Stretch Goal; Funded!)
  • Gnorri as Player Characters (Stretch Goal; Funded!)
  • Advanced Adversaries (Stretch Goal; Funded!)
  • Zoogs as Player Characters (Stretch Goal; Funded!)
  • Mythos Cats and Mythos Cats as Player Characters (Stretch Goal; Funded!)
  • Campaign Launch Adventure (Separate PDF) (Stretch Goal; Funded!)
  • Hero Lab Data Files! (Stretch Goal; Funded!)
Example layout - Not Final.
Example layout - Not Final.

The Pathfinder Roleplaying Game is an evolution of the 3.5 rules set of the world's oldest fantasy roleplaying game, designed using the feedback of tens of thousands of gamers. Since Paizo released the first playtest documents in March of 2008, more than 50,000 gamers have downloaded the rules and posted their feedback, resulting in a year-long open playtest that was the largest in the history of tabletop roleplaying games. Going back to the beginning of the game's third edition, the rules engine that powers the Pathfinder Roleplaying Game have enjoyed more than 15 years of active playtesting and revision. 

Some Cthulhu Mythos has already been introduced in Pathfinder, but we plan to bring an authoritative expertise of Lovecraftian Horror to the game. Our goal is that this book will be the ultimate guide to the Cthulhu Mythos for the Pathfinder Role-Playing Game

Sandy Petersen brought Cthulhu to role-playing games with his groundbreaking game Call of Cthulhu and now wants to bring the Mythos to the high fantasy world of Pathfinder. 

We also believe that no game of Pathfinder is complete without great miniatures, and we have plenty to include in this campaign. These miniatures come fully assembled and ready to be played immediately.

The miniatures are all in scale with Sir Pointsalot and with each other. (Yes the miniatures are really that big.)

The miniatures are all in scale with Sir Pointalot and with each other. (Yes the miniatures are really that big.)

The miniatures are all in scale with Sir Pointalot and with each other. (Yes the miniatures are really that big.)

Designer Pledge

We want to offer a few select backers the unique opportunity to put their mark in the Cthulhu Mythos. You will work directly with Sandy Petersen and his design team to create a creature based on a miniature. 

That creature will be published in Sandy Petersen's Cthulhu Mythos for Pathfinder! As a backer at this pledge, you will have selected a one-of-a-kind Designer Pledge Level. As a member of the design team, your design will forever live on in Pathfinder history!

Meet the Designers

Sandy Petersen's name is synonymous with Cthulhu in gaming. He is a well-known game designer and horror personality. In 1981, he designed the cult game Call of Cthulhu, the very first game to incorporate the Cthulhu Mythos. It has been translated into many languages and is still played worldwide. 

Sandy developed dozens of roleplaying games, campaigns, and supplements. In 1988, he moved on to video games and was a designer on Civilization, Doom, Quake, and the Age of Empires series, among many other games. He inserted tributes to Lovecraft (sometimes hidden) in every game. In 2011, he was Executive Producer on the critically acclaimed movie The Whisperer in Darkness, based closely on the story by H. P. Lovecraft. 

In 2015, he released the famous tabletop boardgame Cthulhu Wars, about the conquest of the earth by the Great Old Ones, and now runs his own small game company. His games have sold tens of millions of copies worldwide, and he has received dozens of awards from the game industry. He is regularly a guest at gaming and horror conventions around the world.

Arthur Petersen has lived and breathed the Cthulhu Mythos with his father for most of his life. Arthur has worked for Petersen Games as the Production Manager for a little over 2 years. His first game as a developer was Cthulhu Wars and its expansions where he helped to test, balance and develop the game. He has been an avid role-player, steeped in the Cthulhu Mythos for over 15 years. 

Ian Starcher has worked in every facet of the game industry on and off for the last 30 years, starting with his stint at Chaosium Inc. Ian is an expert on the Pathfinder system and is Petersen Game's newest team member.

Special thanks to miniatures painters

  • Avalon Starcher 
  • Ben Brownlie 
  • Chris Ewick 
  • Ian Phillips of Iron Tusk Miniatures
  • Kevin Fox 
  • Paul Sanderson 
  • Roy Duffy 
  • Stone Cold Lead 
  • Tim Prow
  • Chase Norton

Photos of painted miniatures by Sheri Starcher.

Cool looking dice provided by Zucati Dice: Minimalist Metal Dice (pre-orders still available on Kickstarter).

Kickstarter Consultant: Gamerati

Graphic Design Help from: Immortal Nights and Shadestream148

Latest Updates from Our Project:

FINAL chance for address updates (for the miniatures sets)
4 months ago – Tue, Apr 11, 2017 at 01:10:14 AM


There are a few weeks left until some regions (such as EU) reach their port. However, the final fulfillment and shipping list for the plastic sets is being prepared as we speak.  

If you need to change your address, please email:   today!  

To make sure it gets done as quickly as possible, please include the name of the KS project (in this case Sandy's Petersen's Cthulhu Mythos). 

When we are preparing to ship the book this summer, you will be able to update your address again - this is only for the plastic sets.  

Don't delay!  


Don't be upset
4 months ago – Mon, Apr 03, 2017 at 09:43:52 PM


I misinformed you two weeks ago when I wrote the update saying US + Canada backers will get two waves of plastics. That plan will not work for us, unfortunately. We have to send a single sending of ALL plastics, which means it must wait until the remaining sets of plastics arrive in Seattle. 

Nothing will change for the rest of the world, but for US it means your miniatures sets won't be on their way until about the last week of April. 

Here is the full lowdown again, which is the same as last update, minus the change to US reducing to a single wave:

US/Canada containers arrive April 13th. All plastic sets will probably be in the mail within 2 weeks after that point (after going through customs, and freighting to warehouse, then pick and packed, etc.)

EU containers arrive in Germany April 20th. All plastic sets will probably be in the mail within 2-3 weeks after that. (Possibly 2, as our German shippers are fairly quick).

Australia/NZ container arrives April 8th. Again, I'd estimate 2-3 weeks until it's in the mail. 

Asian orders are already being sent, and most have already arrived (according to tracking).

What about the book?!

The book is on the same basic schedule I outlined in the last update - everything fully laid out by April 24th. 

I'll try to resume weekly updates (the past two have been every two weeks), to let you know the status of the final copy editing and layout. 

With things like this, there is certainly a chance we don't hit our April 24th deadline. I cannot see the future. However, we have a good team of freelance professionals finishing it up and I would bet positively on them.

I know sometimes these updates are not fun to read, but please do not remotely turn up my pain sensors. I can only handle so much. Yearck!

 - Brain Cylinder #83.7.1 (Arthur)

Anticipated Rest of Schedule + a Shipping Mixup
4 months ago – Tue, Mar 21, 2017 at 12:55:15 AM


This is a long, crunchy update with lots of information you will be interested to read! I apologize in advance for its length. The tl;dr is that the physical book will be in your hands this Summer, and the PDF sent to you by the end of April.

It's been a while since we've discussed the schedule for this project (aside from the plastic shipments, some of which is happening now). I am going to outline the entire rest of our projected schedule. It is no secret we are delayed in delivering the book to you. We'd like to now share where we are and where we expect to be in the coming months. 

Expected Book Schedule and Milestones

The final copy, final editing, and final art are still not quite finished. It has taken longer than expected to put together a lot of the stretch goals and added content than we anticipated, combined with a few fairly massive changes to our company structure and personnel in the intervening year since this Kickstarter project. Needless to say, we have not been able to follow our own internal schedule for this project. The silver lining is that it is likely a much better product as a result! 

Just as an FYI, there will be about 41 pieces of color illustrations commissioned for this book! That is not including the nice photos of painted miniatures that will be used for the bestiary section. The final count of art may be different than that - it may be a few less, even, if the last few ones don't make it in time for final layout. But it should look very nice! You've seen some of them in updates here and there. 

here's another to break up this long update! One of my personal favorites - the chapter illustration for the chapter with new Magic!

More like a "Dark Old" than a "Dark Young." Also, that knight is just an idiot to be so close hahaha.
More like a "Dark Old" than a "Dark Young." Also, that knight is just an idiot to be so close hahaha.


We are working towards having the layout and everything complete for the entire volume on April 24th. It would be then that we can release the PDF, and the same day the printing process will begin in China. Note, that is our expectation and goal. With the vicissitudes of putting together the final version of a very large book like this (and it being the first time we've done this!), April 24th is merely the goal we are reaching towards to have the PDF and printer files ready.

The next milestone to know about is when the printing will be done. If the process begins on April 24th, then we should have the physical books ready to ship out of China by the end of June. As you know, shipping is a big beast unto itself, but with a ship ready date of end of June we can reasonably expect a rough delivery of the books around the world in late July and early to mid August

However, I cannot stress enough how these are projections. We cannot see the future, and so by definition cannot know for a certainty that we will hit these dates as planned. That said, I am reasonably confident in them. We are getting fairly close on the book content itself, and the printers are the same exact ones Paizo uses for their books, and so I feel I can trust their expected timelines as well. 

What about the Plastic Miniatures?

There has been a mixup in the initial plastic miniatures shipment to US + Canada that we did not discover until the fulfillment house had received the product and opened the cartons to arrange for fulfillment. It turns out that not all the plastic miniature sets were sent out from China yet, for US + Canada backers. 

The shipment erroneously did not contain the following sets:

  • Former Human Horrors
  • Cosmic Nightmares
  • Shadows out of Time
  • Primal Horrors
  • Shadows out of Space
  • Foulness from the Stars
  • Designer's Collector's Kit
  • Tcho-Tcho Horde
  • The stretch goal box that includes the Tcho-Tcho High Priest + 1 from each Horde Pack

All the other plastic sets ARE in our Seattle warehouse and will be shipping out this week for US and Canada backers (look at the bottom of the update for that full list). These plastic sets (in the list just above) are currently in containers bound for Seattle on a vessel that has left its China port TODAY (March 20th, 2017). These will arrive in Seattle in early April (about a 14 day journey across the water) and then they will hopefully be at your home before the end of April, if you live in the Western Hemisphere. 

This means, for US and Canadian backers this Kickstarter has suddenly changed from a 2 wave to a 3 wave project. (Wave 1 is shipping this week from Seattle to your homes, wave 2 leaving China today, and wave 3 being the physical book itself this Summer).

I humbly ask your forgiveness for this unintentional mixup. We believed that all the plastic sets were on the initial vessel - indeed, that was our instructions to the factory. 

What about the plastic sets for the rest of the world?

Everyone in the Eastern Hemisphere is still getting all their plastics at once (with the book this Summer, of course). For Europe, the vessel containing all the plastic sets left last Thursday, March 16th, 2017. The containers for Asia and Australia have not left port yet, but should very soon - I will get you the departure dates as soon as I have them. (It's likely Asia and Australia backers will still get plastic sets before Europe given the proximity to China anyway). 

Full List of plastic sets that ARE shipping now to Western Hemisphere backers.

  • Dwellers of the Dreamlands
  • Dwellers of the Abyss
  • Cultist Horde
  • Deep One Horde
  • Moonbeast Horde
  • Ghast Horde
  • Mutant Horde
  • Ghoul Horde
  • Painted Gate
  • Glow in the Dark Elder Thing
  • Single High Priest

 - Brain Cylinder #83.7.1 (Arthur)

(No, I am not a "set" being shipped to US/Canada backers right now. It just looks that way because the dash looks like a bullet point. Don't be looking for the brain cylinder that houses me in your package! You'll only be disappointed).

Glow in the Dark Elder Things have pushed us though customs
5 months ago – Wed, Mar 08, 2017 at 10:18:25 PM

This is a picture taken several months ago in China of the glow in the dark elder things. I realized I hadn't ever shown you what they look like:

They actually glow in the light too, but how could you tell?
They actually glow in the light too, but how could you tell?

The shipment containing all the plastic miniature sets bound for US and Canadian backers has passed through customs and will arrive at the fulfillment warehouse today. 

They expect the first shipments to go out the door Monday - but it could take longer. That's an estimate. Tracking emails will go out as well when your package is sent.

Miniatures at US customs!
5 months ago – Thu, Mar 02, 2017 at 08:46:20 PM

As explained in a prior update, the plastic miniatures bound for the US region (which includes Canada - all of the Americas, actually), left China a few weeks ago.

The shipment arrived on Sunday in the Seattle port as planned. It is still physically at the port (don't actually know if it's off loaded yet), but it has not yet passed through customs. We are hoping it is only a few days more before it can be freighted to our fulfillment warehouse, and then shipped out and on to your homes!

And, as stated previously, the miniatures bound for the rest of the world will be shipped out the second week of March (exact days will depend on the region).

We are sad that the book itself is not yet ready for sending out (nor is the PDF download), and I will give updates on that as soon as I can. 

- Brain Cylinder #83.7.1 (Arthur)