
Mosasaurus
- Incomenormal size, number 94 of 270
$180M/s- An average Mosasaurus egghatches into this, counting size and mutation rolls
$342M/s- Weightat normal size
- 30,000 kg
- Egg grows innormal size, bigger eggs take longer
- 6h
- Sells forthe egg $14.4B
$18B- First index rewardand 600K Speed
$18B
Where to get it
Prehistoric1 in 321 eggs, the sign asks for
18M Speed0.31%per egg
Work out yours
- Earns
$180M/s- That's base income
- x1
- Mutations add up to
- x1
- Sells for
$18B
Add this Mosasaurus to your pen to total up your plot (30,000 kg is normal size).
Income by size
| Size | Weight | Eggs this size | Earns | Grows in |
|---|---|---|---|---|
| 0.1x to 0.2x | 4,500 kg | 1 in 502 | 6h | |
| 0.3x to 0.45x | 11,250 kg | 1 in 139 | 6h | |
| 0.85x to 1.05x | 28,500 kg | 79.7% | 6h | |
| 1.45x to 1.55x | 45,000 kg | 9.96% | 6h | |
| 1.9x to 2.1x | 60,000 kg | 4.98% | 6h | |
| 2.85x to 3.15x | 90,000 kg | 2.49% | 10h 32m | |
| 3.8x to 4.2x | 120,000 kg | 1.24% | 15h 42m | |
| 5.8x to 6.2x | 180,000 kg | 1 in 161 | 27h 35m | |
| 9.5x to 12.5x | 330,000 kg | 1 in 837 | 42h 42m | |
| 12x to 17x | 435,000 kg | 1 in 50.2K | 2 days | |
| 20x to 35x | 825,000 kg | 1 in 25.1M | 3 days |
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
$216M/s
Goldenx2.5 income, rolls on 4% of hatches
$450M/s
Rainbowx3.5 income, rolls on 1% of hatches
$630M/s
Parasitex3 income
$540M/s
Fracturedx2.75 income
$495M/s
Scrambledx2.75 income
$495M/s
Enchantedx2.85 income
$513M/s
Nitrox2.75 income
$495M/s
Spectralx2.75 income
$495M/s
Bloomx1.25 income
$225M/s
Spirit Bloomx2.5 income
$450M/s
Alienx2.5 income
$450M/s
Golden + Rainbowx5 income
$900M/s
Pets that earn about the same
- Hexed PumpkinCosmic, 6,000 kg
$150M/s - Mecha FroggoSecret, 35 kg
$155M/s - JitterbugSecret, 35 kg
$155M/s - Three Headed ChickenCosmic, 24 kg
$165M/s - BalrogEternal, 65,000 kg
$200M/s - Electric EelSecret, 45 kg
$200M/s - Mutant SharkSecret, 60,000 kg
$215M/s - Pure JellyfishSecret, 10,000 kg
$225M/s
Also in Prehistoric
- Dodo
$280/s39.1%per egg - Pterodactyl
$22K/s26%per egg - Ankylosaurus
$120K/s20.8%per egg - Bronto
$1.5M/s7%per egg - Triceratops
$1.2M/s4.93%per egg - TRex
$25M/s0.99%per egg - Tralaledon
$32M/s0.83%per egg
About the numbers
Income, weight, growth time and the index reward are the Mosasaurus'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 Mosasaurus make in Steal An Egg?
$180M/s at normal size with no mutations, number 94 of 270 pets. A 3x Mosasaurus makes $1.4B/s, a Golden one $450M/s, and the average egg of it hatches into $342M/s once size and mutation rolls are counted.
How do you get Mosasaurus?
It hatches from 0.31% of Prehistoric eggs (1 in 321). Prehistoric's sign asks for 18M Speed.
How much does Mosasaurus weigh?
30,000 kg at normal size. Weight goes up in step with size, so a 60,000 kg Mosasaurus is 2x and earns $649M/s.
What is Mosasaurus worth?
It sells for $18B at normal size (100 seconds of its income) and its unhatched egg for $14.4B. Placing it the first time adds it to the index for $18B and 600K Speed.

