The Sewers
Complete the Alley.
Common86.0%last reported global rate
Steam
Mewgenics Achievements
Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.
Total achievements281
Rarest rate0.300%
Ultra rare17
Last checkedOct 10, 2026
Delayed official data
Rates and award counts were last observed on Oct 10, 2026.