Cosmic
Base income$1.5M/s
Base weight35K kg
Found in🦖 Prehistoric
Speed needed18M
GuardianT-Rex
Income rank108th of 197
Bronto is a Cosmic pet in Roblox Steal an Egg that hatches from the Bronto Egg. At normal size with no mutation it earns $1.5M/s — the 19th best of 28 Cosmic pets and 108th out of all 197 pets in the game.
How to get Bronto
Reach about 18M Speed and travel to the Prehistoric biome 🦖. Wait until the T-Rex guardian is asleep, grab the Bronto Egg from the nest and run back to your pen before you get caught. Nests reset every 5 minutes, and bigger eggs are worth more but make you slower — so bring extra Speed.
💰 Bronto income with mutations
| Mutation | Multiplier | Income (normal size) |
|---|---|---|
| Normal | ×1 | $1.5M/s |
| Silver | ×1.2 | $1.8M/s |
| Bloom | ×1.25 | $1.88M/s |
| Golden | ×2.5 | $3.75M/s |
| Spirit Bloom | ×2.5 | $3.75M/s |
| Fractured | ×2.75 | $4.13M/s |
| Scrambled | ×2.75 | $4.13M/s |
| Parasite | ×3 | $4.5M/s |
| Rainbow | ×3.5 | $5.25M/s |
📏 Income by size
Open the calculator →Bigger eggs hatch heavier pets that earn more. Base weight is 35K kg; above 125× the gains slow down.
| Size | Weight | Income | Income (Rainbow) |
|---|---|---|---|
| 1× | 35K kg | $1.5M/s | $5.25M/s |
| 2× | 70K kg | $2.3M/s | $8.05M/s |
| 5× | 175K kg | $4.05M/s | $14.16M/s |
| 10× | 350K kg | $6.21M/s | $21.72M/s |
| 50× | 1.75M kg | $16.74M/s | $58.59M/s |
| 100× | 3.5M kg | $25.67M/s | $89.84M/s |
| 500× | 17.5M kg | $51.29M/s | $179.51M/s |
