A terrifying World War Two setting for the Call of Cthulhu & Savage Worlds roleplaying games. Discover the secret history of World War Two: stories of amazing heroism, in which stalwart men and women struggled to overthrow a nightmare alliance of science and the occult; of frightening inhuman conspiracies from the depths of time; of the unbelievable war machines which were the product of Nazi scientific genius - and how close we all came to a slithering end!

The Secret War has begun! Achtung! Cthulhu - The Investigator's Guide to the Secret War features a stunning cover by the legendary Spanish artist Pinturero, and will be accompanied by amazing interior illustrations by Dim Martin. The Investigator's Guide is the definitive guide to the late 1930s and 40s for use by players and Keepers alike.

Inside you'll find a whole kit-bag stuffed with cool new occupations, skills, equipment, and backgrounds from all over Europe and the British Commonwealth. Find out how you can keep the homefires burning, become part of the Allied war effort, or risk everything by joining the partisans to bring down the Reich from within!

Two Roleplaying Systems
The world of Achtung! Cthulhu is a huge and terrifying World War 2 setting for two popular roleplaying game systems: Call of Cthulhu, Savage Worlds (Realms of Cthulhu) with additional core book conversion to FATE Core and adventures converted for Trail of Cthulhu & The PDQ System.