Call of Cthulhu - Cults for RimWorld 1.0
 Gameplay expansion for RimWorld.You can now...
  • found a cult.
  • worship monstrous deities.
  • make offerings and animal sacrifices.
  • make human sacrifices in return for powerful spells (6 deitys and 30 spells in total, plus a dozen side effects).

This mod supports these languages:English, Korean 한국어 (밀수업자), and Russian русский язык (kr33man)

::::: NOTICE :::::

Recommended mods

  • Cosmic Horrors (for summoning actual monsters)
  • Industrial Age (for great lighting)
  • Realistic Darkness (for great darkness)

How do I start a cult?1) Load the mod.
2) Play for a few days in-game.
3) One of your pawns will investigate something horrendous.
4) Build the forbidden research center.
5) Research the strange symbols until someone founds the cult.
6) Good luck.


  • Cult-mindedness is a new feature under 'needs' that keeps track of how likely colonists are to become cultists.
  • Better apparel means greater worship results and higher success rates for your sacrifices.
  • Beware! If too many colonists are plotting against the cult, they might take matters into their own hands.
  • Want more? Check the Call of Cthulhu WIP Thread[] on the Ludeon forums.

See About.xml for mod credits.

Want to contribute? Get in touch with us in the workshop or Ludeon forums.

Questions? Comments? Want to chat? Come join our Discord server.

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