Bronto – Income, Rarity & How to Get
A Cosmic pet from the Prehistoric collection — listed at $1.5M/s on the community reference list.
Overview
At $1.5M/s, Bronto is the 4th strongest earner listed in Prehistoric. The Cosmic label covers 20 pets on this site; 15 of them come with a confirmed reference value. 3 pets are listed above it in Prehistoric, the highest of them TRex at $25M/s. Across all 90 pets with a confirmed value it ranks 27th. Prehistoric opens at 17M Speed. That is about $5.4B an hour on the reference figure. The figure is a community reference rather than an official number, and a hatch can roll above or below it.
At a glance
| Biome | Prehistoric Endgame |
|---|---|
| Rarity | Cosmic |
| Income per second | $1.5M/s |
| Per minute | $90M |
| Per hour | $5.4B |
| Per day | $129.6B |
| Rank in Prehistoric | 4 of 8 |
| Rank among Cosmic pets | 6 of 15 |
| Rank overall | 27 of 90 reference pets |
| Speed needed for Prehistoric | 17M |
| Biome guardian | T-Rex |
| Collection type | Egg-pool pet |
| Data status | Community reference value |
| Last reviewed | 2026-09-19 |
Income per Second & Value
Reference income
On the community reference value, Bronto is worth $1.5M/s — about $90M a minute, $5.4B an hour and $129.6B a day if the value holds. Above it in Prehistoric sits TRex at $25M/s. The next one down is Triceratops at $1.2M/s.
Two caveats come with any figure of this kind. The roll is a range, so an individual Bronto can read higher or lower than $1.5M/s; and the number is a community reference kept here, not a price a trade has to meet.
Size and Mutation variance
No verified multiplier for size or mutation exists on this site, so none is printed. Both apply on top of the base value, so treat $1.5M/s as the base rather than the ceiling. The income calculator multiplies the figure on this page instead of an invented bonus.
Rarity & Availability
Rarity label
Bronto is Cosmic — band 8 of the ten rarity labels this site uses. 20 pets carry it, 15 of them with a confirmed value. A label like this groups pets, and the grouping cuts across collections: the pets sharing it are listed together on the Cosmic pets page.
Acquisition/source
It is an egg-pool pet, listed in the Prehistoric collection — Endgame tier, and it opens at 17M Speed. The collection is described in full on the Prehistoric page.
How to Get Bronto
Egg or event source
This site has not confirmed the exact egg or source name for Bronto, and it does not infer one from the collection name. What is confirmed is that the pet is listed in the Prehistoric egg pool on the Prehistoric table. No hatch odds or drop rates are published for it anywhere this site could verify, so the page tells you where the pet comes from, not how often it appears.
Requirements/progression gate
Prehistoric opens at 17M Speed, and its guardian is T-Rex. Hatching happens on the map, so the pet is reachable only from a run that has already opened that biome. Its tier labelling is Endgame. The whole ladder is on the Prehistoric page.
Bronto in Prehistoric
Related pets
The collection as a table, strongest first. Unverified rows carry no number.
| Pet | Rarity | Income / sec |
|---|---|---|
| Mosasaurus | Eternal | $180M/s |
| Tralaledon | Secret | $32M/s |
| TRex | Secret | $25M/s |
| Bronto — this page | Cosmic | $1.5M/s |
| Triceratops | Cosmic | $1.2M/s |
| Ankylosaurus | Mythic | $120K/s |
| Pterodactyl | Legendary | $22K/s |
| Dodo | Rare | $280/s |
Biome progression context
Prehistoric accounts for 8 of the 112 pets tracked on this site, 8 of them with a confirmed reference value, and it is labelled Endgame. Abyss Ocean comes before it in the ladder, at 2.5M Speed. The next gate after Prehistoric is Cosmic at 700M Speed. The collection page lists every pet and every gate in it: Prehistoric.
Bronto vs Other Cosmic Pets
Income comparison
Every Cosmic pet this site tracks, highest reference value first. The list spans more than one collection.
| Pet | Rarity | Collection | Income / sec |
|---|---|---|---|
| Rhinotaur | Cosmic | Titan Temple | $17.5M/s |
| Koi | Cosmic | Cherry Blossom | $12M/s |
| Mantaris | Cosmic | Titan Temple | $11M/s |
| Snowy Owl | Cosmic | Cherry Blossom | $7.5M/s |
| La Vacca Saturno Saturnita | Cosmic | Cosmic | $2.2M/s |
| Bronto — this page | Cosmic | Prehistoric | $1.5M/s |
| Triceratops | Cosmic | Prehistoric | $1.2M/s |
| Beluga Whale | Cosmic | Abyss Ocean | $850K/s |
| Whale Shark | Cosmic | Abyss Ocean | $710K/s |
| King Mammoth | Cosmic | Snow | $400K/s |
| Royal Sphinx | Cosmic | Desert | $280K/s |
| Leviathan | Cosmic | Lake | $220K/s |
| Cosmic Gorilla | Cosmic | Cosmic | $180K/s |
| Cosmic Gecko | Cosmic | Cosmic | $30K/s |
| Centapede | Cosmic | Cosmic | $1.5K/s |
| Demon Hound | Cosmic | Angels & Demons | unverified |
| Holy Peacock | Cosmic | Angels & Demons | unverified |
| Imp | Cosmic | Angels & Demons | unverified |
| Mangolini Parrochini | Cosmic | Brainrot (Limited) | unverified |
| Sacred Moth | Cosmic | Angels & Demons | unverified |
The rows come from 10 collections: a rarity label crosses the ladder, so a comparison by label is not the same as a comparison between neighbours.
Practical use
It is not the top of Prehistoric: TRex is listed at $25M/s against its $1.5M/s, so within its own collection it is the option behind that one. At $5.4B an hour it is a mid-table figure across the site.
Related Eggs, Pets & Tools
Prehistoric
The collection Bronto belongs to, with its gate, its guardian and every pet in it.
Open the Prehistoric pageIncome calculator
Put a per-second value against minutes, hours or a whole session.
Open the calculatorSpeed → biome checker
See which collections a given Speed figure has already opened.
Check a Speed figureOther pets to compare it with: Triceratops, Ankylosaurus, Pterodactyl, Dodo, Rhinotaur, Koi. The full roster is on the pet and egg list, and the ranking across tiers is on the tier list.
FAQ
What is Bronto in Steal An Egg?
Bronto is a Cosmic pet in the Prehistoric collection in Steal An Egg, listed at $1.5M/s on the community reference list. That places it 4th of 8 in Prehistoric and 27th of 90 site-wide.
What rarity is Bronto?
Cosmic-tier. 20 pets here carry that label, 15 of them with a confirmed value, and Bronto ranks 6th among those.
How much does Bronto earn per second?
The community reference value is $1.5M/s — about $90M a minute and $5.4B an hour if the value holds. A hatch can roll above or below it.
How do you get Bronto?
It is an egg-pool pet of the Prehistoric collection. Prehistoric opens at 17M Speed, and its guardian is T-Rex. That is the only confirmed part: the pet is listed in the Prehistoric collection, and this site does not infer an egg name from the collection name alone.
Which egg contains Bronto?
This site has not confirmed the exact egg or source name for Bronto, and it does not turn a collection name into an egg name. What is confirmed is the collection: Prehistoric.
Where is Bronto found?
Prehistoric (Endgame). Prehistoric opens at 17M Speed, and it is guarded by T-Rex.
Does size or mutation affect Bronto income?
No verified multipliers are published on this site, so none are printed. Size and Mutation stack on top of the base value, so your own copy can read above or below $1.5M/s.