Steal an Egg · Pet
Triceratops
Triceratops is a Cosmic pet in Steal an Egg that earns a base $1.2M/s. It hatches from the Triceratops Egg, stolen from the nests of the Prehistoric biome.
EggTriceratops EggPet stats
Base income
$1.2M/s
Base weight
3,500 kg
Egg
Triceratops Egg
Grow time
8m
Speed reward
+360K
Cash reward
$120M
Source
Prehistoric
Biome nest
Rarity
Cosmic
Where to get Triceratops
Steal the Triceratops Egg from the nests of the Prehistoric biome, carry it back to your pen and let it hatch.
- Speed required
- 18M
- Guardian
- T-Rex
The guardian sleeps next to the nest; the faster you are, the easier it is to outrun it. Bigger eggs are worth more but slow you down. Eggs & guardians
Estimate based on the wiki formula
Triceratops income with mutations and size
| Mutation | 1× weight3,500 kg | 10× weight35,000 kg | 100× weight350,000 kg | 200× weight700,000 kg |
|---|---|---|---|---|
| No mutation×1 | $1.2M/s | $4.96M/s | $20.5M/s | $28.4M/s |
| Rainbow×3.5 | $4.2M/s | $17.4M/s | $71.9M/s | $99.5M/s |
| Parasite×3 | $3.6M/s | $14.9M/s | $61.6M/s | $85.3M/s |
| Fractured×2.75 | $3.3M/s | $13.7M/s | $56.5M/s | $78.2M/s |
| Scrambled×2.75 | $3.3M/s | $13.7M/s | $56.5M/s | $78.2M/s |
| Golden×2.5 | $3M/s | $12.4M/s | $51.3M/s | $71.1M/s |
| Spirit Bloom×2.5 | $3M/s | $12.4M/s | $51.3M/s | $71.1M/s |
| Bloom×1.25 | $1.5M/s | $6.21M/s | $25.7M/s | $35.5M/s |
| Silver×1.2 | $1.44M/s | $5.96M/s | $24.6M/s | $34.1M/s |
Estimate based on the wiki formula (marked beta there): income = base × (weight ÷ base weight)^(37/60) × mutation, with diminishing returns above 125× the base weight. In-game values can differ. See mutations and the income calculator.
How Triceratops compares
Neighbors by income in Prehistoric (4 of 8):
Other Cosmic pets
Triceratops guide
The Triceratops hatch reward lines up with a shop price almost too neatly: the egg pays $120m in cash, and the Golden Treadmill (+80 Speed per step) costs exactly $120M. For a player who has just reached Prehistoric, one Triceratops can fund that upgrade on its own.
Triceratops Egg basics
The egg spawns in Prehistoric, 8th in the biome order, which needs 18M Speed. The T-Rex guards the nests. It grows in 8 minutes and rewards +360k Speed alongside the $120m.
The Triceratops earns $1.2M/s. That puts it 5th of 8 in its zone, just below the Bronto ($1.5M/s), the other Cosmic pet in Prehistoric.
Triceratops or Bronto
- Triceratops: $1.2M/s, 8-minute egg, +360k Speed, base weight 3,500 kg
- Bronto: $1.5M/s, 11-minute egg, +300k Speed, base weight 35,000 kg
The Bronto earns 25% more, but the Triceratops grows three minutes faster, gives more Speed per egg and is a tenth of the weight to haul away from the T-Rex. For repeated runs, the Triceratops is the easier egg.
Rankings and growth with mutations
It is 9th of 28 Cosmic pets and 84th of 198 overall, counting from the lowest. With the wiki's documented formula (still flagged as beta), a Golden Triceratops would make about $3M/s and a Rainbow one about $4.2M/s. At 100× base weight the estimate is near $20.5M/s, and Rainbow on top of that reaches about $71.9M/s.
Hard-tier sacrifice pet
The Rift Sacrifice puts the Triceratops in the Hard tier for both Riftbeasts and Shattered Rift, and the Laboratory's Biohazard banner lists it among the Prehistoric egg's Cosmic pets.
Data sourced from the Steal an Egg Wiki (CC BY-SA) and processed automatically; last synced 2026-10-11.