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Home/Economy tool

Economy tool

Steal An Egg Pet Upgrade Calculator

Measure the income gain and payback time of replacing one pet with another.

Transparent formula · reviewed September 8, 2026
PLAYER-ENTERED VALUES

Calculate before you commit

Starting values are editable examples, not game defaults. Replace every field with what you observe in your current server.

ENTERED UPGRADE ADDS INCOME+110/s
Payback
3.79 min
Gain per active day
396K
Payback play days
0.06

Formula

income gain = new rate − current rate; payback = upgrade cost ÷ positive income gain

How to collect usable inputs

  1. Use displayed rates under the same boost conditions.
  2. Include the full acquisition or upgrade cost.
  3. Compare payback with the time you expect to play.

Limit you should keep with the result

A higher rarity or weight does not automatically mean a faster payback.

For named pets and source context, cross-check the 106-slot Pet Index. For a complete set of decision aids, return to all Steal An Egg tools.