Achtung! Cthulhu ‘Adventure Series’ Launches with The Trellborg Monstrosities




The Trellborg Monstrosities by John Houlihan is a standalone adventure for both hardened Call of Cthulhu & Savage Worlds veterans and newcomers alike and is set in 1943 as the tide of war is finally turning against the Nazi war machine. 

Aiming to sate the hunger for new Achtung! Cthulhu adventures ahead of the release of the Investigator’s & Keeper’s Guides in September, this is the first in line of a new standalone ‘Adventure Series’ that will be released as a print compilation in Spring 2014. 

Join a band of heroic investigators, including resistance partisans and British special forces, as they plunge deep behind enemy lines on the frozen Norwegian – Finnish border to confront an ancient horror and a terrifying artefact which could alter the course of the war. Based on The Trellborg Monstrosities, the horrifying novella by John Houlihan which is included free with every purchase!

Inside you will find everything that you need for hours of gripping roleplaying adventure including: 

– A standalone 56 page multi-part adventure for hours of spine-chilling play.
– Detailed maps of the frozen border of Norway and Finland, the village of Trellborg, and an abandoned Nazi camp with separate handout files by Michal E Cross.
– Four pre-generated investigator characters to get you straight into the action.
– Rules for new skills, spells and equipment.
– Art by Gregor Kari (including cover)  & MKUltra Studios 


*** Includes the 65 Page Novella ‘The Monstrosities at Trellborg’ by John Houlihan set in the Achtung! Cthulhu universe and featuring Seraph.***

Requires the Call of Cthulhu 6th edition OR Savage Worlds rulebook to play. Here are the links to each version now on sale priced $11.99:—Adventure-Series—The-Trellborg-Monstrosities—For-Call-of-Cthulhu—Adventure-Series—The-Trellborg-Monstrosities—For-Savage-Worlds


The Trellborg Monstrosities will be continued in Tomb of Aeons and The Crystal Void, the next two Seraph novellas that will be released as The Seraph Chronicles Volume One.


For further information on Modiphius, Achtung! Cthulhu or The Trellborg Monstrosities please contact us here or by replying to this email.



About John Houlihan


John Houlihan has been a writer, journalist and broadcaster for over twenty years, working in news, sport and videogames, where he was editor and editor-in-chief of Computer and Video He has published a novel Tom or The Peeper’s and Voyeurs Handbook and has recently written The Trellborg Monstrosities novella and The Trellborg Monstrosities adventure for Modiphius Entertainment.


John is also working on the first Gideon Swann sci-fi novel A Late Flowering Deity and a long-standing but still currently under wraps sports book.  Away from the salt mines, he has an unnatural fondness for cricket, football, snowboarding, music, DJ-ing, playing guitar and all forms of sci-fi, fantasy and horror.


John currently works as Digital Manager of and lives in Watford because someone has to.


Twitter: Follow @johnh259




VN:F [1.9.22_1171]
User Review:
Rating: 5.0/5 (1 vote cast)
Achtung! Cthulhu 'Adventure Series' Launches with The Trellborg Monstrosities, 5.0 out of 5 based on 1 rating

Leave a Reply