1.0·Every feature free until Premium arrives in October
The Tartarus Key achievements, rarest first.
Every achievement in The Tartarus Key, ranked by how many Steam players have unlocked it. Global completion rates from Steam, refreshed daily.
The rarest achievement
Doing My Best?
17%
of players
- Achievements
- 16
- Rarest
- 17%
- Ultra rare (under 5%)
- 0
- Average completion
- 41%
1
Doing My Best?
Hurt Torres
17%
2
Sole SurvivorHidden
Hidden achievement. Description revealed on unlock.
18%
3
Cartographer
Complete the map
20%
4
A Group EffortHidden
Hidden achievement. Description revealed on unlock.
29%
5
Electric Solitaire
Fail to Save Kai
31%
6
Doing What He Loved
Fail to Save Charles
34%
7
A Stiff Drink
Fail to Save William
34%
8
Horrible Science
Fail to Save Ruth
35%
9
Until The Bitter EndHidden
Hidden achievement. Description revealed on unlock.
40%
10
Co-op
Save Kai
47%
11
Elementary
Save Ruth
48%
12
The Music Was Nice…
Save William
48%
13
Chatty
Trigger many optional conversations
49%
14
History Lesson
Save Charles
53%
15
Doing My Best!
Save Torres
71%
16
House Guest
Escape the office
77%
Percentages are Steam's global unlock rates across all players who own The Tartarus Key, refreshed daily. Under 5% is marked in the lit blue.