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Area 8 of 11

Prehistoric — Best Eggs

Prehistoric is a roughly 17–18M Speed zone with a dinosaur roster. Three of its eight eggs sit at Secret tier or above, which makes it one of the better zones for repeated runs once you can survive the trip.

Speed required
~17M–18M
Guardian
T-Rex
Eggs that spawn here
8
Best egg

Mosasaurus Egg

Eternal$180M/sbase income

Mosasaurus is the highest-value egg that spawns in Prehistoric. The wiki lists the Mosasaurus pet at $180M/s base income, against $32M/s for Tralaledon — about 5.63x more. It is the Eternal-tier hatch in this area's pool.

Mosasaurus is the best egg in Prehistoric and the top of this area's egg pool. Hatching it gives the Mosasaurus pet, a Eternal-tier creature the wiki lists at $180M/s base income — the highest figure documented for any egg that spawns in Prehistoric.

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Runner-up

Tralaledon Egg

Secret$32M/sbase income

Tralaledon is the second-best egg in Prehistoric at $32M/s base income. It is a Secret-tier hatch, one tier below Mosasaurus, and it is the realistic fallback when the Mosasaurus nest is not up.

Tralaledon is the runner-up egg in Prehistoric. It is a Secret-tier hatch listed at $32M/s base income, which makes it the strongest realistic alternative when the Mosasaurus nest is not available.

View Egg Details

All 8 Prehistoric eggs, ranked

Every egg that can spawn in this area, sorted by the documented base income of the pet inside it. Ranks 1 and 2 are the two recommended above.

  1. 1
    Mosasaurus Egg
    Mosasaurus

    Eternal$180M/s

  2. 2
    Tralaledon Egg
    Tralaledon

    Secret$32M/s

  3. 3
    T-Rex Egg
    T-Rex

    Secret$25M/s

  4. 4
    Bronto Egg
    Bronto

    Cosmic$1.5M/s

  5. 5
    Triceratops Egg
    Triceratops

    Cosmic$1.2M/s

  6. 6
    Ankylosaurus Egg
    Ankylosaurus

    Mythic$120K/s

  7. 7
    Pterodactyl Egg
    Pterodactyl

    Legendary$22K/s

  8. 8
    Dodo Egg
    Dodo

    Rare$280/s

Other eggs in Prehistoric

Worth knowing what you are looking at, even when you are not planning to take it home.

How to use this

  1. Learn the shape before you travel

    Tap the Mosasaurus image above to open it full screen and zoom in. Colours change between spawns but the shape does not, so the silhouette is what you are matching in game.

  2. Check your Speed against the egg, not the area

    ~17M–18M Speed gets you into Prehistoric. Getting back out with a large egg is the harder half, because bigger eggs are heavier and slow you down.

  3. Take the runner-up rather than nothing

    Tralaledon is the second-best egg in the area at $32M/s. If the Mosasaurus nest is empty, it is a better use of a reset than leaving with nothing.

  4. Come back after the reset

    Eggs reset every 5 minutes. If you are hunting one specific egg and it is not there, waiting out the reset is usually faster than running to a different area.

Prehistoric FAQ

What is the best egg in Prehistoric?

Mosasaurus. It is the highest-value egg that spawns in Prehistoric, with the wiki listing the Mosasaurus pet at $180M/s base income. It is a Eternal-tier hatch.

Do I need Speed to reach Prehistoric?

Yes. The wiki lists a Speed requirement of ~17M–18M to enter Prehistoric. Remember that a large egg slows you down, so you want headroom above the entry requirement for the run back.

What guards the nests in Prehistoric?

The wiki lists T-Rex as the guardian of Prehistoric. Guardians stay near the nests, so grab the egg and keep moving rather than standing still to check what you picked up.

This is an independent fan-made website and is not affiliated with Roblox or the developers of Steal an Egg. Egg names, rarities and income figures are compiled from the community wiki at stealanegg.fandom.com, last checked September 15, 2026. Values can change with any game update — always check in game. Read the full disclaimer.