455 ratings
Call of Cthulhu - Cosmic Horrors
Mod, 1.0
File Size
11.165 MB
Sep 18, 2016 @ 6:57am
Oct 26 @ 8:29pm
59 Change Notes ( view )

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Call of Cthulhu - Cosmic Horrors

In 1 collection by Jecrell
Call of Cthulhu - Rim of Madness Expansion Pack
20 items
*Add Lovecraftian monsters to your RimWorld experience!* There is a lingering fear that strokes the hairs on the back of the necks of your colonists. Something terrible is coming, and there is little time to prepare. Cosmic horrors are already upon us.

This is an attempt to create the minor races of H.P. Lovecraft's weird fiction mythos in the RimWorld engine. Some behave the same as hostile factions that raid colonies such as mechanoids or insectoids. Others can be deadlier, however.

Adds the following cosmic horrors to your game:
  • Star-Spawn of Cthulhu
  • Shoggoths
  • Mi-Go
  • Deep Ones
  • Star Vampire
  • Dark Young
  • NEW Chthonian

You will need to start a new game OR for previously saved games without monsters, you can try using Orion's Faction Discovery Mod
*phew* Now that that's out of the way. Onto the notes section!

  • Each monster has its own unique anatomical skeletons, organs, and body parts. Some special powers were given to psionic beasts.
  • Each monster has special sound effects.
  • More creatures will be added in a second update in the near future. A third update will flesh out these cosmic horrors with true special abilities true to their literary counterparts.
  • Since I am one person, I can't attest to how balanced the monsters are, and I am definitely looking for feedback from player experiences. Let me know how they are in your game.

Update 1.3
  • Dark Young and Dark Young Herd incidents added to the game.
  • Greater Deep Ones added to the game.
  • Star Vampires rebalanced to be more numerous at higher difficulties.
  • All cosmic horrors have age ranges from Spawn to Eldritch.
  • Sanity loss effects now apply when observing Cosmic Horrors.
  • Mood loss effects now apply when observing Cosmic Horrors.
  • Sanity Loss effects further rebalanced

Call of Cthulhu Mods
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Credited Sources

Have fun!

Still there?
Jecrell here, lead programmer of the Call of Cthulhu mod series.

Want to buy me a coffee? Fuel my madness for mods here below.
Popular Discussions View All (20)
2 hours ago
Ideas & Suggestions
Sep 28 @ 8:53pm
i have all the mods that work with the new beta
Aug 8 @ 4:45am
Dark Young throw an error whenever they try to attack something
< >
HellkiteLord Nov 3 @ 5:42pm 
I found an interesting glich with the star vampire event every time it happens after I kill it and undraft the colonest most of the UI vanishes and i can't do anythings I can't even select the colonest that vanish in the top boxes not sure what is causing it b/c i'm not even finding an error report on it o.O it's very strange but figured i would let you know about it. I do have them set to attack me every few days though i dought that would have anything to do with it.
ahnkra Oct 28 @ 9:46am 
I just wanted to thank you again for this mod, and for actually spelling out what your updates do in the change notes. 4 mod updates in two days for the mods i use, and yours is the only one i didnt have to scroll through the posts to figure out "what you did"! TY!
Butterlord Oct 27 @ 5:13pm 
Love the mod, mate. I'd write a better review but the hecking dark young are back again cause they smell muffalo or something.
DONT U GUYS HAVE PHONES ? Oct 26 @ 6:12am 
idk if its a bug from all of my mods or from this mod but i sometimes find dead naked bodies in the nature , is it from cthulhu mods ?
Slime Drooling Tunnel Oct 21 @ 3:47pm 
sanity bar isnt woring, every time its supposed to change error log says "sanity cant be found adding." but never gets added. only got one faction/race mod which uses alien framework
Thelockenessmonster Oct 21 @ 11:08am 
hi...me again...found these errors with just your mods and hugslib enabled: https://git.io/fxK1t
i do have a lot of faction mods, though.
i'm not having raids at all for some reason, though I'm not using the Lovecraft storyteller.
Scavenger Oct 17 @ 11:12pm 
Also, how do you actually make sanity loss go away..? I dont know how to make them, write.
Scavenger Oct 17 @ 8:56pm 
1.0 comin?