Steal An Egg Monster Egg Guide: Robux Egg, 6 Monster Pets & Mecha Variants (2026)
Last updated: 2026-09-12
The Steal An Egg Monster Egg guide: what the Robux Monster Egg is, its reported 39 Robux price, the six Monster pets and their hatch rates, the 1% Mecha Re-Roll, the guaranteed Monstrous mutation, and how it differs from the event Monstrous Egg.
What the Monster Egg is in Steal An Egg
The Monster Egg is a Robux Store egg added in the Monsters Are Coming update on August 29, 2026. It holds the six Monster pets introduced with that update, and every hatch has a rare chance to come out as a Mecha variant. Unlike the event Monstrous Egg, this one is a purchase you make in the Shop.
Because it is a paid egg, the Monster Egg is a shortcut for collectors who want the Monster pets and their Mecha variants without grinding the limited-time event. Treat it as a collectible buy, not a core progression step.
Monster Egg price in Steal An Egg
Gaming media reports a single Monster Egg costs 39 Robux in the Shop. That figure is source-reported rather than a developer constant, so always check the live Shop price before you buy, since the studio can adjust it. The egg is a paid shortcut and not part of free progression.
Monster pets in the Monster Egg
The Monster Egg hatches one of six Monster pets, each with a fixed hatch chance. The six pets and their rates are:
| Monster pet | Rarity | Hatch chance |
|---|---|---|
| Scorpio | Legendary | 39% |
| Froggo | Mythic | 24% |
| Crawler | Cosmic | 18% |
| Crocodon | Secret | 11% |
| Krakenoid | Eternal | 6.5% |
| Dreadscale | Divine | 0.5% |
Scorpio is the most likely hatch at 39% and Dreadscale the rarest at 0.5%. The full Monster pet roster, including the eight Titan Temple pets, is on the Steal An Egg pets guide.
Mecha variants and the Mecha Re-Roll
Each Monster Egg hatch has about a 1% chance to trigger a Mecha Re-Roll, which gives a Mecha variant of that Monster pet. Mecha pets are larger than the normal version and carry a higher income rate, so they are valued for both collection and trading. The 1% figure is source-reported, so read the live game for the exact rate.
If you are chasing Mecha variants, the Monster Egg is the route, since the event Monstrous Egg does not guarantee them. Buy for the collectible and trading upside rather than a guaranteed income spike.
Monstrous mutation on Monster Egg pets
Pets hatched from the Monster Egg are reported to come with the Monstrous mutation already applied. The Monstrous mutation is the limited-time mutation tied to the Monsters Are Coming update, and it only affects Monster pets from this egg and the Titan Temple biome.
For the full mutation list and how each one is obtained, see the mutations guide.
Monster Egg vs Monstrous Egg in Steal An Egg
The two names are easy to mix up. The Monster Egg is the Robux purchase in the Shop. The Monstrous Egg is a separate reward you can get from a Monster Chest during the limited-time Hungry Monster event. Both hatch the same six Monster pets, but one is bought and the other is earned through the event, so pick the route that fits your play style.
The event path and its Monster Chest rewards are covered on the Hungry Monster event guide, and the whole update is on the Monsters Are Coming update guide.
The six Monster pets and their hatch chances are from the Monsters Are Coming update patch notes (August 29, 2026). The 39 Robux price, the 1% Mecha Re-Roll, and the guaranteed Monstrous mutation are source-reported by gaming media and may differ from the live Shop. No pet income or reward value is invented on this page.
Steal An Egg Monster Egg — FAQ
What is the Monster Egg in Steal An Egg?+
The Monster Egg is a Robux Store egg added in the Monsters Are Coming update on August 29, 2026. It holds the six Monster pets and each hatch has a rare chance to come out as a Mecha variant. It is a purchase, not an event drop.
How much does the Monster Egg cost?+
Gaming media reports a single Monster Egg costs 39 Robux in the Shop. That price is source-reported rather than a developer constant, so check the live Shop before you buy. The egg is a paid shortcut, not free progression.
What pets hatch from the Monster Egg?+
The Monster Egg hatches one of six Monster pets: Scorpio (Legendary, 39%), Froggo (Mythic, 24%), Crawler (Cosmic, 18%), Crocodon (Secret, 11%), Krakenoid (Eternal, 6.5%) and Dreadscale (Divine, 0.5%). The same six also drop from the event Monstrous Egg.
What is the Mecha Re-Roll?+
Each Monster Egg hatch has about a 1% chance to trigger a Mecha Re-Roll, which gives a Mecha variant of that Monster pet. Mecha pets are larger and carry a higher income rate than the normal variant, making them a collectible and trading upside rather than a guaranteed income spike.
Does the Monster Egg give the Monstrous mutation?+
Yes — pets hatched from the Monster Egg are reported to come with the Monstrous mutation already applied. The Monstrous mutation is the limited-time mutation tied to the Monsters Are Coming update, so it only affects Monster pets from this egg and the Titan Temple biome.
Is the Monster Egg the same as the Monstrous Egg in Steal An Egg?+
No. The Monster Egg is the Robux purchase in the Shop. The Monstrous Egg is a separate reward you can get from a Monster Chest during the limited-time Hungry Monster event. Both hatch the same six Monster pets, but one is bought and the other is earned through the event.
