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Keeper Slots

Keeper Slots upgrade icon

Adds a new green slot. Sushi in these are NOT taken away when resetting, but are subject to a -3 tier reduction.

FieldValue
RoomSushi
CurrencyRibbons
Base cost100K Ribbons
Cost growth50x per level before New Game+ adjustment
Max level6
PrerequisiteRequires Ghost Janitor.
Cost behaviorNormal room upgrade. Room cost reductions can apply; New Game+ makes cost growth steeper.
Important unlockNo

This upgrade unlocks a system or feature directly rather than applying a simple stat modifier.