Skip to content

Planning III

Boosts chance of successfully finding a gem on 3rd row to 21.22%

Field Value
Cost growth 1.38x per level before New Game+ adjustment
Cost behavior Normal room upgrade. Room cost reductions can apply; New Game+ makes cost growth steeper.
Player impact Improves the room’s income, speed, cost curve, or support systems.

Purple gem success uses a row-specific base chance plus diminishing luck. Lower rows start safer; deeper rows need more Planning levels to feel reliable.