| Achievement | How to unlock
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| - Complete the campaign mode at 100%.
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| - Complete the story stage "Awakening the Monolith".
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| - Collect the "Bonsai Tree" collection.
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| - Finish investigating Brain's case.
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| - Constuct all the buildings in campaign mode.
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| - Upgrade any building to maximum level in campagn mode (except for Propaganda Center)
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| - Collect the "Crimson Moonstone" collection.
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| - Collect the "Eye of Providence Amulet" collection.
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| - Unlock all starting decks in campaign mode.
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| - Complete the story stage "Finding Allies".
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| - Finish investigating Grim's case.
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| - Finish investigating Hand's case.
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| - Finish investigating Head's case.
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| - Collect the "Elephant Figurine" collection.
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| - Collect the "Turban" collection.
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| - Collect the "Ice Crown" collection.
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| - Finish investigating Julia's case.
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| - Try all options for any Encounter.
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| - Collect the "Deedstalker" collection.
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| - Collect the "Tourist Backpack" collection.
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| - Collect the "On the Origin of Species" collection.
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| - Game Over for losing all Sanity.
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| - Upgrade all buildings to maximum level in campagn mode.
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| - Level up The Monolith to level 10.
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| - Level up The Monolith to level 15.
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| - Level up The Monolith to level 20.
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| - Level up The Monolith to level 25.
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| - Level up The Monolith to level 50.
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| - Level up The Monolith to level 5.
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| - Game Over for not having fuel.
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| - Make three purchases from the Merchant at the same time.
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- Perfect run: Cultist (Campaign)
| - Complete three acts in campaign mode as a Cultist.
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- Perfect run: Detective (Campaign)
| - Complete three acts in campaign mode as a Detective.
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- Perfect run: Professor (Campaign)
| - Complete three acts in campaign mode as a Professor.
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| - Collect the "Neurotoxins Grimoire" collection.
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| - Collect the "Accumulator" collection.
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| - Defeat the Cthulhu boss fight.
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| - Defeat the Dagon boss fight.
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| - Defeat the Hastur boss fight.
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| - Defeat the Ithaqua boss fight.
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| - Defeat the Shub-Niggurath boss fight.
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| - Collect the "Anti-Clotting Lubricant" collection.
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| - Collect the "Merchant Guild Medalion" collection.
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| - Fuse a Super-Sphere in campaign mode.
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| - Collect the "Pharaoh's Mask" collection.
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| - Complete the story stage "Tension rises".
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| - Game Over for losing all HP.
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| - Complete all investigations in campaign mode.
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| - Complete the story stage "The Betrayal".
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| - Collect the "Card Shark Deck" collection.
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| - Complete the campaign mode story.
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| - Complete the story stage "The Final".
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| - Complete the story stage "The Last Hope".
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| - Collect the "Straitjacket" collection.
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| - Collect the "Pith Helmet" collection.
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| - Collect the "Mystical Sphere" collection.
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| - Collect the "Vampire Jaw" collection.
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| - Finish investigating Weirdo's case.
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| - Unlock the Cultist in campaign mode.
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| - Unlock the Professor in campaign mode.
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