Achievement

Storage upgrade 5

Send Butch 15 more cats (cumulative: 51).

Send Butch a cumulative total of 51 cats to unlock the fifth storage upgrade, requiring 15 more cats after the fourth tier. By this point your inventory should be comfortable enough to hold key items across runs. Keep feeding Butch retired cats as you cycle through adventures; the incremental space adds up significantly over time.

Details

Unlock CriteriaSend Butch 15 More Cats (Cumulative: 51).

Quick Facts

Type: Achievement
Confidence: High
Verified: Feb 22, 2026

Sources

https://gamerant.com/mewgenics-how-increase-inventory-space/https://gamerblurb.com/articles/mewgenics-achievements-guide

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