
Koi
- Incomenormal size, number 137 of 270
$12M/s- An average Koi egghatches into this, counting size and mutation rolls
$22.8M/s- Weightat normal size
- 120 kg
- Egg grows innormal size, bigger eggs take longer
- 25m
- Sells forthe egg $960M
$1.2B- First index rewardand 4.1M Speed
$1.2B
Where to get it
Cherry Blossom1 in 23 eggs, the sign asks for
2.5B Speed4.36%per egg
Work out yours
- Earns
$12M/s- That's base income
- x1
- Mutations add up to
- x1
- Sells for
$1.2B
Add this Koi to your pen to total up your plot (120 kg is normal size).
Income by size
| Size | Weight | Eggs this size | Earns | Grows in |
|---|---|---|---|---|
| 0.1x to 0.2x | 18 kg | 1 in 502 | 25m | |
| 0.3x to 0.45x | 45 kg | 1 in 139 | 25m | |
| 0.85x to 1.05x | 114 kg | 79.7% | 25m | |
| 1.45x to 1.55x | 180 kg | 9.96% | 25m | |
| 1.9x to 2.1x | 240 kg | 4.98% | 25m | |
| 2.85x to 3.15x | 360 kg | 2.49% | 43m 54s | |
| 3.8x to 4.2x | 480 kg | 1.24% | 1h 5m | |
| 5.8x to 6.2x | 720 kg | 1 in 161 | 1h 54m | |
| 9.5x to 12.5x | 1,320 kg | 1 in 837 | 2h 57m | |
| 12x to 17x | 1,740 kg | 1 in 50.2K | 3h 37m | |
| 20x to 35x | 3,300 kg | 1 in 25.1M | 5h 44m |
Each row is the middle of the band; a 1% doubling roll can push any egg past it.
Income by mutation
Silverx1.2 income, rolls on 6% of hatches
$14.4M/s
Goldenx2.5 income, rolls on 4% of hatches
$30M/s
Rainbowx3.5 income, rolls on 1% of hatches
$42M/s
Parasitex3 income
$36M/s
Fracturedx2.75 income
$33M/s
Scrambledx2.75 income
$33M/s
Enchantedx2.85 income
$34.2M/s
Nitrox2.75 income
$33M/s
Spectralx2.75 income
$33M/s
Bloomx1.25 income
$15M/s
Spirit Bloomx2.5 income
$30M/s
Alienx2.5 income
$30M/s
Golden + Rainbowx5 income
$60M/s
Pets that earn about the same
- Snowy OwlCosmic, 20 kg
$7.5M/s - CerberusSecret, 9,000 kg
$8M/s - Shattered RamCosmic, 13,000 kg
$8M/s - MantarisCosmic, 1,500 kg
$11M/s - Stacked TurtleCosmic, 300 kg
$12M/s - Citadel Snail #007Mythic, 1,234 kg
$12.5M/s - KrakenSecret, 18,000 kg
$15M/s - Ring GuardCosmic, 80 kg
$15M/s
Also in Cherry Blossom
- Crane
$4K/s37.5%per egg - Salamander
$74K/s26.3%per egg - Red Panda
$450K/s16.8%per egg - Snowy Owl
$7.5M/s14%per egg - Stag
$145M/s0.74%per egg - Oni Tiger
$600M/s0.31%per egg - Kitsune
$1.8B/s0.02%per egg
About the numbers
Income, weight, growth time and the index reward are the Koi's own entries in the game's pet config; the odds come from each egg's drop weights. Size and mutation payouts run the game's earnings code, the same as the earnings calculator. Every other pet is on the pets page.
Questions
How much does Koi make in Steal An Egg?
$12M/s at normal size with no mutations, number 137 of 270 pets. A 3x Koi makes $91.6M/s, a Golden one $30M/s, and the average egg of it hatches into $22.8M/s once size and mutation rolls are counted.
How do you get Koi?
It hatches from 4.36% of Cherry Blossom eggs (1 in 23). Cherry Blossom's sign asks for 2.5B Speed.
How much does Koi weigh?
120 kg at normal size. Weight goes up in step with size, so a 240 kg Koi is 2x and earns $43.3M/s.
What is Koi worth?
It sells for $1.2B at normal size (100 seconds of its income) and its unhatched egg for $960M. Placing it the first time adds it to the index for $1.2B and 4.1M Speed.

