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Cards of Cthulhu achievements, rarest first.
Every achievement in Cards of Cthulhu, ranked by how many Steam players have unlocked it. Global completion rates from Steam, refreshed daily.
The rarest achievement
End of Nightmare
1.2%
of players
- Achievements
- 29
- Rarest
- 1.2%
- Ultra rare (under 5%)
- 29
- Average completion
- 1.9%
1
End of Nightmare
Defeat Cthulhu on Nightmare Mode.
1.2%
2
Heroic End of Madness
Defeat Cthulhu on Heroic Mode.
1.3%
3
Enemy Life Reduction 6
Defeat 500 monsters.
1.4%
4
Random
Defeat 360 monsters.
1.5%
5
Enemy Life Reduction 4
Defeat 370 monsters.
1.5%
6
Absorbed Power
Defeat 410 monsters.
1.5%
7
Enemy Life reduction 5
Defeat 440 monsters.
1.5%
8
Enemy Life Reduction 3
Defeat 290 monsters.
1.6%
9
Mark
Defeat 280 monsters.
1.6%
10
Buff
Defeat 310 monsters.
1.6%
11
Vampiric
Defeat 330 monsters.
1.6%
12
Fourth pick option
Defeat 340 monsters.
1.6%
13
End of Madness?
Defeat Cthulhu
1.7%
14
Copycat
Defeat 230 monsters.
1.7%
15
Enemy Life Reduction 2
Defeat 240 monsters.
1.7%
16
Overcharge
Defeat 260 monsters.
1.7%
17
Third pick option
Defeat 180 monsters.
1.8%
18
Repeat
Defeat 200 monsters.
1.8%
19
Enemy Life Reduction 1
Defeat 210 monsters.
1.8%
20
Strong
Defeat 150 monsters.
1.9%
21
Meteor
Defeat 170 monster.
1.9%
22
5+ Health
Defeat 130 monsters.
2.0%
23
Surprise Bag
Defeat 120 monsters.
2.0%
24
Healable Wound
Defeat 90 monsters.
2.3%
25
Mind Steal
Defeat 75 monsters.
2.4%
26
Destroy the Weak
Defeat 50 monsters.
2.6%
27
Overkill
Defeat 30 monsters.
3.0%
28
Shadow Bomb
Defeat 20 monsters.
3.3%
29
Showdown
Defeat 5 monsters.
4.0%
Percentages are Steam's global unlock rates across all players who own Cards of Cthulhu, refreshed daily. Under 5% is marked in the lit blue.