By Modiphius Entertainment
Discover new malign Mythos monstrosities, terrors and abominations
FOR IMMEDIATE RELEASE
London, England: 10th July 2025
Modiphius Entertainment has announced a new supplement for its pulp adventure game, Achtung! Cthulhu, available for pre-order on 10th July 2025.
Achtung! Cthulhu already contains a huge variety of malign Mythos monstrosities, terrors and abominations but this new grimoire of terror expands on them even further. It also features a brand new section devoted to Invidious Cults and Infernal Sects, detailing the malevolent followers of the old ones.
Inside Horrors of the Secret War is a new collection of Animals which can be used as familiars, companions and even mounts. The Creatures of Weird Science and Sinister Sorcery section details new individuals, units and entities directly involved in the Secret War. Some, like Pork Chop or Headless Harry, are allies from Section M and Majestic, but others like Black Sun’s Zaubererjäger or Nachtwölfe’s fearsome Juggernaut make powerful new adversaries.
The Horrors and Monstrosities section presents a selection of creatures to threaten both body and soul. This includes classic mythos creations like Dholes or Spiders of Leng, plus a range created exclusively for this bestiary like the loathsome Sand Dweller or fiery Seed of Kol’Valassam. This tome of terror concludes with a sanity-challenging selection of Elder Gods, Outer Gods and Great Old Ones, a new pantheon of terrifying deities to strike trepidation into even the stoutest of hearts!
Horrors of the Secret War also features Invidious Cults and Infernal Sects, a chapter showcasing brand new occult organisations to bring further intrigue and added depth to games. Features pre-made cults from across the globe, plus rules for creating your own cult from scratch, a ready-made cult headquarters and map and adventure seeds for anti-cult missions.
The 100-page, softcover Horrors of the Secret War features:
- Over 75 new creatures, monsters, entities, demons and gods which range from lowly animals to the terrifying gods of the mythos
- Includes classic Mythos creatures like the Hunting Horror
- Many new and unique monsters and monstrosities
- A wealth of new cults who worship the deities of the Mythos and oppose them
- Rules for generating a unique cult, plus a full colour HQ map and mission seeds
This new supplement will join Modiphius’ collection of successful tabletop RPGs, which include Star Trek Adventures, the official Dune RPG, Fallout: The Roleplaying Game and more.
John Houlihan, line editor at Modiphius said: “Bestiaries and monster manuals are always amongst the most popular mythos RPG books and with Horrors of the Secret War, we’re delighted to unleash a new wave of original creatures, demons, and deities to terrify players and delight GMs!”
Pre-orders for Achtung! Cthulhu Horrors of the Secret War go live on Thursday 10th July and can be registered at https://achtungcthulhu.com/.
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About Modiphius Entertainment
Modiphius Entertainment is a London, England-based entertainment publisher of tabletop games and related hobby merchandise. The company launched its own IP, the Achtung! Cthulhu Roleplaying Game, in 2013, and has since released a huge range of tabletop games, including the Star Trek Adventures TTRPG with Paramount, the official Dune RPG with Legendary, The Elder Scrolls Skyrim The Co-Operative Board Game, the official Fallout: The Roleplaying Game, and Fallout: Wasteland Warfare miniatures game with Bethesda. The company has since launched new IPs Cohors Cthulhu and Dreams & Machines.