Cards of Cthulhu

Cards of Cthulhu

29 achievements
Ultra Rare×29

About Cards of Cthulhu's achievements

Cards of Cthulhu has 29 Steam achievements, 29 of them ultra-rare — unlocked by under 5% of players. The rarest is "End of Nightmare", earned by just 1.2% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement
1.2%
of players earned "End of Nightmare"

Community Ratings

No ratings yet
Difficulty—
Easy → Brutal
Enjoyment—
Meh → Loved it
Grindiness—
No grind → Huge grind
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All Cards of Cthulhu achievements

29 achievements
End of Nightmare
End of Nightmare
Defeat Cthulhu on Nightmare Mode.
Ultra Rare1.2%
Heroic End of Madness
Heroic End of Madness
Defeat Cthulhu on Heroic Mode.
Ultra Rare1.3%
Enemy Life reduction 5
Enemy Life reduction 5
Defeat 440 monsters.
Ultra Rare1.4%
Enemy Life Reduction 6
Enemy Life Reduction 6
Defeat 500 monsters.
Ultra Rare1.4%
Vampiric
Vampiric
Defeat 330 monsters.
Ultra Rare1.5%
Fourth pick option
Fourth pick option
Defeat 340 monsters.
Ultra Rare1.5%
Random
Random
Defeat 360 monsters.
Ultra Rare1.5%
Enemy Life Reduction 4
Enemy Life Reduction 4
Defeat 370 monsters.
Ultra Rare1.5%
Absorbed Power
Absorbed Power
Defeat 410 monsters.
Ultra Rare1.5%
Enemy Life Reduction 3
Enemy Life Reduction 3
Defeat 290 monsters.
Ultra Rare1.6%
Overcharge
Overcharge
Defeat 260 monsters.
Ultra Rare1.6%
Mark
Mark
Defeat 280 monsters.
Ultra Rare1.6%
Buff
Buff
Defeat 310 monsters.
Ultra Rare1.6%
End of Madness?
End of Madness?
Defeat Cthulhu
Ultra Rare1.7%
Copycat
Copycat
Defeat 230 monsters.
Ultra Rare1.7%
Enemy Life Reduction 2
Enemy Life Reduction 2
Defeat 240 monsters.
Ultra Rare1.7%
Meteor
Meteor
Defeat 170 monster.
Ultra Rare1.8%
Third pick option
Third pick option
Defeat 180 monsters.
Ultra Rare1.8%
Repeat
Repeat
Defeat 200 monsters.
Ultra Rare1.8%
Enemy Life Reduction 1
Enemy Life Reduction 1
Defeat 210 monsters.
Ultra Rare1.8%
Strong
Strong
Defeat 150 monsters.
Ultra Rare1.9%
5+ Health
5+ Health
Defeat 130 monsters.
Ultra Rare2.0%
Surprise Bag
Surprise Bag
Defeat 120 monsters.
Ultra Rare2.0%
Healable Wound
Healable Wound
Defeat 90 monsters.
Ultra Rare2.2%
Mind Steal
Mind Steal
Defeat 75 monsters.
Ultra Rare2.3%
Destroy the Weak
Destroy the Weak
Defeat 50 monsters.
Ultra Rare2.6%
Overkill
Overkill
Defeat 30 monsters.
Ultra Rare2.9%
Shadow Bomb
Shadow Bomb
Defeat 20 monsters.
Ultra Rare3.2%
Showdown
Showdown
Defeat 5 monsters.
Ultra Rare3.9%