Eternal

Mosasaurus

Mosasaurus is an Eternal Steal An Egg pet with a base income of $180M/s. It hatches from an egg stolen in the Prehistoric biome (recommended speed: 18M), guarded by the T-Rex.

Base income: $180M/s
Base weight: 30,000 kg
Rarity: Eternal
Biome: Prehistoric
Egg: Mosasaurus Egg
Time to hatch: 6h
Availability: AvailableNests of the Prehistoric biome
Release: Game launch (July 25, 2026)
Rarity score: 256as rare as 256 Common pets (Eternal)
Hatch reward: +600K speed and $18B

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How much does your Mosasaurus make?

Enter its weight in kg (the one on its card, or the one shown on its egg before it hatches: it is the same) and its mutations.

Income by mutation

Mutation	Bonus	Income (base weight)
No mutation	x1	$180M/s
Rainbow	x3.5	$630M/s
Parasite	x3	$540M/s
Fractured	x2.75	$495M/s
Scrambled	x2.75	$495M/s
Enchanted	x2.75	$495M/s
Nitro	x2.75	$495M/s
Golden	x2.5	$450M/s
Spirit Bloom	x2.5	$450M/s
Bloom	x1.25	$225M/s
Silver	x1.2	$216M/s
Golden + Rainbow (stacked)	x5	$900M/s

What is Mosasaurus worth?

Mosasaurus's money value is $180M/s at base weight with no mutation, and its rarity score is 256 (available). A mutation multiplies that value, up to $630M/s with Rainbow (x3.5); several mutations add up, and a heavier Mosasaurus is worth more.

Pets worth about the same: Mutant Shark ($215M/s), Electric Eel ($200M/s), Three Headed Chicken ($165M/s), Mecha Froggo ($155M/s).

There is no official value list: for a real offer, put it in the trade calculator, which tells you if the trade is a win, fair or a loss (W/F/L). Every pet's value: the value list.