Steal an Egg Income Calculator: Passive and Offline Planning

How do you calculate Steal an Egg pet income?

Start with the live income contribution shown by one pet, then multiply it by the visible multipliers that apply in your base:

contribution = base income × mutation multiplier × size multiplier × copies

If the game displays a combined rate for your base instead of a per-pet rate, use that value as the starting number and set the remaining multipliers to 1.

Offline & Passive Income Calculator

Enter a live contribution rate from one pet, then project passive income for your own session length.

Base income / second Mutation multiplier Size multiplier Copies Hours to project

Formula: base × mutation × size × copies. This is a planning estimate, not a guarantee of live game behavior.

Which values should you use?

Input	Best source
Base income	The current pet card or income display in your own base.
Mutation multiplier	A confirmed in-game label, not a chat screenshot.
Size multiplier	The current size state after hatching or feeding.
Copies	The number of the same pet currently contributing.
Hours	Your real planned play or away time.

When is this more useful than a fixed table?

This calculator survives balance changes better than a static table because it separates the live value from the planning math. Re-enter your current numbers after every update, then compare two setups with the full calculator suite or check related pets in the all pets index.