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Formula
We start with the pet's base income. Then we use its weight, then its variants and mutations.
Mutations: each one adds its bonus to the base. Golden and Rainbow make x5, not x8.75.
Weight: take your pet's weight and divide by its base weight. Raise that to the power of 37/60 and multiply. Past 125 times base weight, the game uses a slower curve.
This comes from the Steal An Egg Wiki. It is not tested yet, so every result says Estimate.
Not tested in game yet.
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- The Fuse Machine at your base takes 3 pets of the same species.
- All 3 pets are used up. You get 1 egg of that species.
- The new weight is rolled. It can be lighter than all 3 pets. One player put in 457, 256, and 247 kg and got 86 kg.
Sources
Last checked Oct 31, 2026
Report a Problem- All Things How: Fuse MachineSource. Checked Oct 31, 2026.
- Steal An Egg Wiki site: Fuse MachineSource. Checked Oct 31, 2026.Price rule read from the game client by the site. Released content.
- stealanegg.app: Pet FusionSource. Checked Oct 31, 2026.
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