Koi
12M/sCosmic#78 highest incomeCherry Blossom
Koi earns 12M/s base income in Steal An Egg, the #78 highest-earning of the 177 pets tracked. It is a Cosmic pet hatched from the Koi Egg in the Cherry Blossom biome. Hatching it also pays out +4.2m Speed, $1.2b. The egg takes 25m to hatch. Income here is the base rate as of 19 October 2026; a color mutation and a bigger size roll multiply it, see the table below or the income calculator. Steal An Egg has no trade window, pets can only be gifted one way, so anyone offering to “trade” for your Koi is asking you to give it away.
Koi income with every mutation
Base income times the color mutation multiplier, before any size bonus:
| Mutation | Multiplier | Koi income |
|---|---|---|
| Rainbow | ×3.5 | 42M/s |
| Parasite | ×3 | 36M/s |
| Fractured | ×2.75 | 33M/s |
| Scrambled | ×2.75 | 33M/s |
| Golden | ×2.5 | 30M/s |
| Spirit Bloom | ×2.5 | 30M/s |
| Bloom | ×1.25 | 15M/s |
| Silver | ×1.2 | 14.4M/s |
Pets that earn about the same as Koi
Within 15% of Koi's base income:
| Pet | Income | Rarity | Biome |
|---|---|---|---|
 Citadel Snail #007 | 12.5M/s | Mythic | Event |
 Stacked Turtle | 12M/s | Cosmic | Experimental Egg |
 Mantaris | 11M/s | Cosmic | Titan Temple |