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Idles of Madness

Cthulhu demands sacrifices! Idles of Madness is an incremental/clicker game based around feeding victims to Lovecraftian horrors. Spawn victims, unlock a huge variety of eldritch monsters, earn game-changing upgrades and transmute your Horror into new forms! Cthulhu awaits!

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Game contextLatest: IGF Team
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Latest Contributor: IGF TeamEdit notes
Updated: Jul 13, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 13, 2026Publisher scaleThe operating scale of the game's publisher.
Updated: Jul 13, 2026Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Idles of Madness and Possess Nothing Studios funded?FundingThe known source of funding behind the game.
Updated: Jul 13, 2026Creative controlWho appears to retain creative control of the game.
Updated: Jul 13, 2026Release statusWhether and how the game has been released.

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About the Game

Idles of Madness is a Lovecraftian incremental/clicker that allows you to play how you want to! Want a more active playstyle? Choose upgrades that mean there’s never a dull moment! Want to sit back and relax? Choose automation upgrades that do the work for you! The choice of how to build your monstrous army is yours - but, one thing’s for sure: Cthulhu is watching…

FEATURES:


  • Dozens of eldritch monsters to choose from, each with their own abilities and uses.
  • Eldritch Laboratory & Research Tree systems, allowing you to upgrade specific monsters and unlock game-changing upgrades respectively.
  • Choose your playstyle - whether that’s active clicking, or passive automation.
  • Summon hordes of cultists, monsters and victims to sacrifice to Cthulhu!
  • Transmute your central horror into 10+ different forms - and, ultimately, the Great Dreamer themself...

BUILD AN ARMY OF LOVECRAFTIAN MONSTERS!




Build up your defences between waves, depending on which types of enemies are coming, and which paths they’ll take. Place and upgrade your turrets, and use special modules to make them even more powerful! Be careful: enemies may be equipped with unique upgrades designed to do extra damage if they manage to get through your defence.

CHOOSE GAME-CHANGING UPGRADES THAT DEFINE YOUR PLAYSTYLE




Upgrade specific monsters in the Eldritch Laboratory, or unlock game-changing upgrades in the Research Tree, allowing you to choose your own playstyle - whether you want to be constantly busy, or take a more automated, AFK approach.

UNLEASH THE GROTESQUE FORMS OF YOUR HORROR & SUMMON CTHULHU!




Each milestone you hit (and there are 10 of them!) your horror will transmute into a new form! Filled with Lovecraftian references (Aptenodytes Albus anyone?), madness awaits for those brave - or foolish - enough to discover them all…