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Achtung! Cthulhu - Halloween Horrors 2 FREE!


Welcome to another chilling edition of Halloween Horrors – are you as ready to be terrorised as Achtung! Cthulhu presents its now annual offering of ghosts, ghouls, and things that go bump in the night!? 

This year (2023) we’ve a special treat with five FREE fantastically frightening Halloween Horrors from the devious mind of acclaimed horror writer Bill Heron, all ready to unleash a reign of terror to your RPG games!

Don’t forget to download the FREE scenario Mysteries of the Manor, an exciting mission set in a remote English country house under siege by the Black Sun. Can your agents rescue the captives before a dark tome is discovered and the Halloween Horrors are released? 

Even though both are specially written for Achtung! Cthulhu, they can be readily adapted for other gaming systems. Enjoy!



Their once-beautiful forms are now ragged scraps of skin over scarred, blackened, and scorched flesh. Intelligent and able to speak many languages, Djinn are capricious, cruel, and ultimately serve their own ends. 

Flying Polyp

The eternal and immortal foe of the Great Race of Yith, the Flying Polyps seeped down to Earth from a distant galaxy millions of years ago and now live in grim windowless cities of basalt towers deep below the earth.

Grand-Mère Chérie 

Grand-Mère Chérie or “Grandmother Sweetheart” was one of Paris’s most prolific mass  murderers until the dark hunger forced her to consume the pox-ridden corpses of her human family and undergo a chilling transformation.


Shape changing freshwater-dwelling Deep Ones who have a vague resemblance to black horses, who dwell in lakes and rivers.  They have a command of water magic and take an especial pleasure in drowning solitary humans.


A particularly nasty extra-dimensional entity that is drawn to those who are lost, one way or the other, feeding upon the fear of their victims before dispatching them in as unpleasant a way as possible.

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

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April 9th, 2024
Monster not just for Halloween - a Mephisto review Halloween Horrors 2 - Grimoire of Terror Just in time for Halloween, Modiphius has released another small free supplement for Achtung! Cthulhu [...]
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File Last Updated:
October 30, 2023
This title was added to our catalog on October 31, 2023.