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Cathulhu

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“It is said that in Ulthar, which lies beyond the river Skai, no man may kill a cat; and this I can verily believe as I gaze upon him who sitteth purring before the fire. For the cat is cryptic, and close to strange things which men cannot see. He is the soul of antique Aegyptus, and bearer of tales from forgotten cities in Meroe and Ophir. He is the kin of the jungle’s lords, and heir to the secrets of hoary and sinister Africa. The Sphinx is his cousin, and he speaks her language; but he is more ancient than the Sphinx, and remembers that which she hath forgotten—H.P. Lovecraft, The Cats of Ulthar, 1920

 

Welcome to Cathulhu, the Call of Cthulhu alternative setting where feline sleuths investigate the horrors of the Cthulhu Mythos.

Cats are mysterious, self-contained creatures. Both wild and domestic in nature, they are silent observers of all that goes on around them.

In Cathulhu, discover the secret life of the cat as a Dreamlands warrior and a Waking World sleuth. Cats are the secret allies of humanity in the fight against cosmic horror; confronting overlooked machinations orchestrated from the sewers, tracking down sorcerers and cultists in the Waking World, and taking the fight to Nyarlathotep’s minions in the Dreamlands with the Cat Armies.

Cathulhu contains full character generation information for creating feline characters, feline abilities, background information on the cult of Bast, a short bestiary of feline opponents and an introductory adventure, ‘The Black Cat’.

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Cathulhu is fully compatible with Call of Cthulhu seventh edition rules.

“Watch a cat decide to move through a door, and see how patiently he waits for his opportunity, never losing sight of his purpose even when he finds it expedient to feign other interests in the interim. Watch him in the thick of the chase, and compare his calculating patience and quiet study of his terrain with the noisy floundering and pawing of his canine rival. It is not often that he returns empty-handed. He knows what he wants, and means to get it in the most effective way, even at the sacrifice of time—which he philosophically recognises as unimportant in the aimless cosmos. There is no turning him aside or distracting his attention—and we know that among humans this very quality of mental tenacity, this ability to carry a single thread through complex distractions, is considered a pretty good sign of intellectual vigour and maturity. Children, old crones, peasants, and dogs ramble; cats and philosophers stick to their point.”—H.P. Lovecraft, Cats and Dogs, 1926

Cathulhu is intended as an interlude to mainstream Call of Cthulhu games, and provides a different POV to the horrors of the Cthulhu Mythos. It is best played light-heartedly as "cosy cthulhu", but can be played seriously. The opponents of the feline investigators can range from dastardly rat-kings or mutant sewer lizards, to lone mad sorcerers, or all the way to a full-blown confrontation with the Cthulhu Mythos.

History

Cathulhu is the English-language version of Katzulhu, which first appeared in the German-language Cthuloide Welten magazine, #1 and #2, in 2001/2002. The Katzulhu rules were reprinted in 2009 to accompany the release of Pegasus spiele’s Dreamlands sourcebook. The Katzulhu rules are currently available for download from this site (search for Katzulhu).

Cathulhu was developed by Ingo Ahrens, Adam Crossingham and Daniel Harms from Ingo’s original Katzulhu, and was published in Worlds of Cthulhu magazine #4 in 2006. This edition is revised from the Worlds of Cthulhu version and includes additional information about Sabbat cats, and the cult of Bast through the ages.

Cathulhu was revised and updated in 2023 to be seventh edition compatible.

The download files include:

  • Cathulhu rules PDF
  • Character sheet PDF (fillable and non-fillable versions)
  • Pre-gen cat-investigators for 'The Black Cat' scenario
  • Floorplans for 'The Black Cat' scenario
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Reviews (4)
Discussions (15)
Customer avatar
DT B February 07, 2024 2:42 am UTC
According to the Chaosium site, "Cathulhu is fully updated to Call of Cthulhu 7th Edition, and available in premium colour softcover and PDF at DriveThruRPG." However, the options above list "Softcover, B&W Book (8.5" x 11")" as the only option. Is this available in color? Will it eventually be available in HC?
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Customer avatar
Adam C February 18, 2024 11:21 pm UTC
PUBLISHER
The colour release was our initial release but has since been replaced by the B&W version. The colour version will be restored once the file has been updated. The PDF is still colour. We do not have plans for a hardcover version as we do not believe current POD technology does justice to the hardcover format.
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Customer avatar
DT B February 22, 2024 7:52 am UTC
Excellent. Thank you, Adam. I'll hold out until the color version is available. I look forward to purchasing it in the future.
Customer avatar
Travis C November 19, 2023 4:30 am UTC
I bought the sixth edition version (DriveThru order #5839921)... and it seems that version has disappeared from my download library on DriveThru. Is there a way to get it restored? And is there a way to get the 7e update at a discount?
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Customer avatar
Adam C November 19, 2023 12:40 pm UTC
PUBLISHER
The 6e version has been replaced with the 7e version as per Sixtystone's licence with Chaosium, and will not be restored.
The 7e PDF should be in your DTRPG library and is the best way to get the new version as a previous purchaser it's free. The latest version is called "60-KAT01-02_Cathulhu-7e_screen_DTRPGv231105.pdf".
If you cannot see this file please contact DTRPG support.
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Customer avatar
Travis C November 20, 2023 8:51 pm UTC
Thank you for the reply! I will contact support. Best of luck on sales of the new version!
Customer avatar
Julian W August 18, 2020 11:13 pm UTC
PURCHASER
yes
Customer avatar
Adam C August 02, 2020 10:23 am UTC
PUBLISHER
Dwight F: "Does this contain The Trail of the Black Cats and The Curse of the Rat Being?" + "Sounds like the German one was/is updated for 7e, will the English one also be updated?"

1. No, only the intro scenario ‘The Black Cat’.
2. Conversion information for 7e will be appearing in the forthcoming 'Cat Army of Ulthar'. If you can't wait, the same notes appear in Golden Goblin's 'Tails of Valor'.

Reply
Customer avatar
Dwight F August 04, 2020 4:38 am UTC
PURCHASER
Thank you. That works for me.
Customer avatar
Dwight F August 02, 2020 7:01 am UTC
PURCHASER
Does this contain The Trail of the Black Cats and The Curse of the Rat Being?
Customer avatar
Dwight F August 02, 2020 6:58 am UTC
PURCHASER
Sounds like the German one was/is updated for 7e, will the English one also be updated?
Customer avatar
Tom G March 29, 2020 9:48 am UTC
The Preview only brings a HTTP404 error...
Customer avatar
DARTAGNAN R June 30, 2018 2:45 am UTC
KITTY!
Customer avatar
Horror H May 30, 2017 7:38 am UTC
PURCHASER
Easily Opened and read. Comes with bookmarks already.
Customer avatar
Graham D April 28, 2014 2:16 am UTC
PURCHASER
I've just sucessfully opened and read it using both Sumatra PDF and Adobe Acrobat Reader (11.0) on Windows.
Customer avatar
svebor M April 24, 2014 2:23 pm UTC
PURCHASER
problem solved! people from rpgnow reacted promptly and now it works like a charm + it is a beautiful book! thanks!
Customer avatar
Kirk B April 24, 2014 12:28 pm UTC
PURCHASER
Works for me.... Beautiful layout and design.
Customer avatar
svebor M April 24, 2014 9:08 am UTC
PURCHASER
i have just opened it from foxit but it is still broken. file is obviously corrupted. there area pages missing and text is all mashed up.
Customer avatar
svebor M April 24, 2014 8:51 am UTC
PURCHASER
just bought a pdf. it is not working. i am getting 109 error each time i try to open it. i also tried to open it from my ipad but it comes as a blank document. i have tried downloading it several times and character sheet is opening just fine.
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Product Information
Platinum seller
Pages
90
ISBN
978-1-909095-10-6
Publisher Stock #
60-KAT01-02
File Size:
46.41 MB
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File Last Updated:
January 04, 2024
This title was added to our catalog on April 24, 2014.