Best way right nowBronto Egg
Steal a Bronto Egg from the nests in the Prehistoric biome (they refill every 5 minutes) or from another player's base, then hatch it in your pen. It takes 11m to hatch.
CosmicPets#101 of 189
Bronto
Normal base income1.5M/s
Mutation
Details
- Found in
- Prehistoric
- Hatch time
- 11m
- Rarity
- Cosmic 7/11
- Category
- Pets
- Normal weight
- 35,000 kg
- Last updated
- 2 days ago
- Source
- Steal An Egg Wiki · Bronto
Bronto by weight
Type your own kg →Normal35,000 kg1.5M/s
2x70,000 kg2.3M/s
10x350,000 kg6.21M/s
50x1,750,000 kg16.7M/s
125x4,375,000 kg29.5M/s
500x17,500,000 kg51.3M/s
Income by weight before any colour mutation. Growth slows past 125x the normal weight.
Base income history
- Change · All
- -
- High
- -
- Low
- -
- Now
- -
Value changes
No changes since we started tracking on Sep 28, 2026. When Steal An Egg buffs or nerfs Bronto, it shows up here.
What is Bronto in Steal An Egg?
Bronto is a Cosmic pet in Steal An Egg. Its base income is 1.5M/s, 101st of 189 pets we track and 20th among 31 Cosmic ones. It hatches from the Bronto Egg in 11m, found in the Prehistoric biome.
- Rarity
- Cosmic
- Pet
- Pets
- Base income
- 1.5M/s
- Rank
- #101 of 189
- Hatch time
- 11m
- Egg
- Bronto Egg
- Index reward
- +300k Speed, $150m
How to get Bronto
Related: 
Mosasaurus
Tralaledon
T-Rex
Triceratops
Where this comes from
Built from our Steal An Egg data, checked 2026-10-04, using the sources below.
Wikis
- Steal An Egg Wiki · Bronto
- stealaneggwiki.com all eggs (income + hatch time)
- stealaneggwiki.net eggs (income + index reward)
- robloxgameswiki all pets (rarity bands and counts)
- Item images: stealanegg.fandom.com (fan wiki). Game art belongs to the developer.
Steal An Egg Wiki · Bronto is licensed CC BY-SA 3.0. Game content and images belong to the game's developer. We are not affiliated with Roblox or the developer.
How Bronto compares
Similar Cosmic pets
All Steal An Egg values →Cosmic
Crawler
1.5M/sBase income
- Found in
- Monster Egg (Robux shop)
- Hatch time
- 10s
- Egg chance
- 18%
Triceratops
1.2M/sBase income
- Found in
- Prehistoric
- Hatch time
- 8m
- Egg chance
- -
La Vacca Saturno Saturnita
2.2M/sBase income
- Found in
- Cosmic
- Hatch time
- 13m
- Egg chance
- -
Dreadclaw
2.2M/sBase income
- Found in
- Rift Machine
- Hatch time
- -
- Egg chance
- 15%
Radcoon
2.2M/sBase income
- Found in
- Dr. Scramble's Lab (Biohazard banner)
- Hatch time
- -
- Egg chance
- -
Questions about Bronto
How much is Bronto worth in Steal An Egg?
Bronto has a base income of 1.5M/s, which ranks it #101 of 189 in Steal An Egg. Silver 1.2x: 1.8M/s, Bloom 1.25x: 1.88M/s.
How rare is Bronto?
Bronto is a Cosmic pet, tier 7 of 11.
Is Radcoon better than Bronto?
By base income, yes: Radcoon is 2.2M/s, about 1.5 times Bronto's 1.5M/s.
How do you get Bronto in Steal An Egg?
Bronto Egg: Steal a Bronto Egg from the nests in the Prehistoric biome (they refill every 5 minutes) or from another player's base, then hatch it in your pen. It takes 11m to hatch.
How much does Bronto weigh in Steal An Egg?
A normal Bronto weighs 35,000 kg. Heavier ones earn more: at 350,000 kg (10x) it makes about 6.21M/s, and at 4,375,000 kg (125x) about 29.5M/s, before colour.
Community data from the Steal An Egg Fandom wiki and several fan sites, which disagree on a few pets (noted on their pages). Four Extinction Egg animals (Terrorbird, Giant Sloth, Dunkleosteus, Gigantus) will be added once their base income is published; their Skeletal versions are listed.