Secret
Thunderbird
$50M/sbase income · #31 of 97 in Break and Steal an EggThe Thunderbird is a Secret pet in Break and Steal an Egg, from Galaxy zone eggs. Its base income is $50M/s, rank 31 of 97 pets. A Thunderbird weighing 10,000 KG earns about $1.66B/s with no mutation or boosts. Checked November 9, 2026. The exact income of your own Thunderbird depends on its weight, mutation and boosts: PetCalc's Break and Steal an Egg calculator works it out.
Calculate your Thunderbird with its weight and boosts →Thunderbird income by weight
No mutation, no boosts; estimated from similar pets. Multiply by your mutation and boosts.
| Weight | Per second | Per hour |
|---|---|---|
| 500 KG | ≈ $191M/s | ≈ $688B |
| 1,000 KG | ≈ $315M/s | ≈ $1.14T |
| 5,000 KG | ≈ $1.01B/s | ≈ $3.63T |
| 10,000 KG | ≈ $1.66B/s | ≈ $5.99T |
| 50,000 KG | ≈ $5.32B/s | ≈ $19.1T |
| 100,000 KG | ≈ $8.77B/s | ≈ $31.6T |
Merging three Thunderbirds adds their weights together. How weight works →
Other Secret pets
Numbers last checked . We re-check them when Break and Steal an Egg updates. Values marked ≈ are estimates.