1.0·Every feature free until Premium arrives in October
Plankton achievements, rarest first.
Every achievement in Plankton, ranked by how many Steam players have unlocked it. Global completion rates from Steam, refreshed daily.
The rarest achievement
Life Form 4
5.6%
of players
- Achievements
- 4
- Rarest
- 5.6%
- Ultra rare (under 5%)
- 0
- Average completion
- 6.7%
1
Life Form 4
level 10-12
5.6%
2
Life Form 3
level 7-9
6.5%
3
Life Form 2
level 4-6
6.9%
4
Life Form 1
level 1-3
7.9%
Percentages are Steam's global unlock rates across all players who own Plankton, refreshed daily. Under 5% is marked in the lit blue.