Advanced Search

Achtung! Cthulhu 2d20: Operation Black Cap (PDF)Click to magnify
Quick Preview
Full‑size Preview

Achtung! Cthulhu 2d20: Operation Black Cap (PDF)


Welcome to Christmas in July! In celebration, this digital title has been marked down by up to 40%! For more of Santa's savings, visit our Christmas in July sale page.

Battle the Black Goat of the Woods!

It is March 1941, and Section M receives reports that a Ju 52 transport plane has been downed near the village of Glavica in Yugoslavia. Planes do crash in this remote mountain range, but reports of strange atmospheric conditions intrigue Section M’s analysts.

When further intelligence is received that the plane was carrying an unusual stele recently unearthed by the Black Sun in Italian East Africa, agents are sent on to investigate. However, with an Axis invasion imminent, Yugoslavia is a volatile theatre of operations and getting in and out again will be no easy task. 

Deposited on the shores of the Adriatic, the agents must meet a local contact and work their way inland while evading Yugoslavian patrols before making their way to the remote mountain village using subterfuge or main force.

Yet once they arrive, what awaits them there is not only a Black Sun task force, but a cult of Shub-Niggurath worshippers who have called upon the wrath of the Black Goat of the Woods to recover their lost artefact and smite the unbelievers.

Caught between the forces of Black Sun and the cult, will the agents be able to recover or destroy the stele and make it out of the country?

Their path is fraught with obstacles, like checkpoints, hordes of would-be refugees and Black Sun agents who stand in their way. Worst of all, can they escape the vengeance of the fearsome Servant of Shub-Niggurath which has been set on their tail?

Find out in this latest thrilling Achtung! Cthulhu adventure!


  • A 23-page adventure for 4-6 agents in both standard and printer friendly formats. Can be run as a one-off adventure or easily incorporated into ongoing campaigns.
  • Infiltrate Yugoslavia via the Adriatic Sea, rendez-vous with a local contact, search the crash-site for occult artefacts, and escape the region safely.
  • Features maps to enhance the playing experience for both players and GMs.

Requires the Achtung! Cthulhu 2d20 core books to run.

 Customers Who Bought this Title also Purchased
Reviews (1)
Discussions (0)
May 9th, 2023
Dangerous cargo - a Mephisto review Operation Black Cap Montenegro, 1941: A Black Sun plane crashed, and Section M is eager to learn more about the cargo being transported. Therefore, the agents are sen [...]
Browse Categories
$ to $
 Follow Your Favorites!
NotificationsSign in to get custom notifications of new products!

Product Information
Silver seller
Rule System(s)
Publisher Stock #
File Size:
176.32 MB
Original electronic Click for more information
Scanned image
These products were created by scanning an original printed edition. Most older books are in scanned image format because original digital layout files never existed or were no longer available from the publisher.

For PDF download editions, each page has been run through Optical Character Recognition (OCR) software to attempt to decipher the printed text. The result of this OCR process is placed invisibly behind the picture of each scanned page, to allow for text searching. However, any text in a given book set on a graphical background or in handwritten fonts would most likely not be picked up by the OCR software, and is therefore not searchable. Also, a few larger books may be resampled to fit into the system, and may not have this searchable text background.

For printed books, we have performed high-resolution scans of an original hardcopy of the book. We essentially digitally re-master the book. Unfortunately, the resulting quality of these books is not as high. It's the problem of making a copy of a copy. The text is fine for reading, but illustration work starts to run dark, pixellating and/or losing shades of grey. Moiré patterns may develop in photos. We mark clearly which print titles come from scanned image books so that you can make an informed purchase decision about the quality of what you will receive.
Original electronic format
These ebooks were created from the original electronic layout files, and therefore are fully text searchable. Also, their file size tends to be smaller than scanned image books. Most newer books are in the original electronic format. Both download and print editions of such books should be high quality.
File Last Updated:
February 20, 2023
This title was added to our catalog on February 21, 2023.