Steal An Egg Biomes: Speed Gates, Pets and Rewards
All 13 World biomes and 6 Limited groups from the in-game Pet Index (184 cells, read on 2026-10-09): how many cells each has, the rarity mix, the speed you need, and what you get for completing the set.
Cell counts, rarity mixes and the pets in each group were read from the Pet Index itself. Speed gates and guardians come from the Fandom wiki and are marked Unverified. Use the speed calculator to see how far you are from any gate.
World biomes (13 tabs, 112 cells)
Eleven biomes have 8 cells each, Angels & Demons has 16, and Enchanted Forest has 8. Biomes are listed in unlock order. Each one has a guardian that stops you from stealing eggs and a minimum speed to enter.
Forest
Tab
World · unlock order 1
Cells
8 Verified in-game
Rarities
Common×2Uncommon×1Rare×2Epic×2Legendary×1
Speed needed
None
Guardian
Chicken (Fandom)
Completion reward
Icon only, showing a bat. The game shows no name or number for it, and its effect is unknown.
Starting biome with no speed gate. Chicken is the only pet unlocked on a fresh account, and the only cell whose name we could read directly. All 8 cells matched the wiki.
Icon only, showing a golden spear. The game shows no name or number for it, and its effect is unknown.
Added in Update 4 (timesaver dates it 2026-09-13). Night-time only, with random Angels, Demons or merged forms; spawn announcements name "Angels" and "Demons" as separate places. One 16-cell tab in the game. The wiki lists 18 pets: Equinox and Aetheron have no cell and are said to come from the Secret Shrine behind the waterfall (GameRant, timesaver). Eight pairs of pets share identical income, so each pair’s two cells cannot be told apart.
Icon only, showing a wooden spiked mace. The game shows no name or number for it, and its effect is unknown.
The current top biome. The Fandom page is garbled and lists 8 names with no income. Only Celestial Sunlion could be placed: a spawn announcement called it Eternal, and cell 7 is the only Eternal cell ($200B reward), giving an estimated $2B/s. The other 7 names are unplaced. The threshold and the guardian (wikirealm says "starry lion") are unverified.
Pets (1)
Celestial Sunlion Eternal $2B/s Estimated
Unplaced names from the wiki: Prism Gecko, Petal Beetle, Enchanted Bluejay, Astral Jackalope, Spirit Panda, Starry Fox, Royal Skywhale. Cells 1–6 and 8 pay $35M, $120M, $250M, $3B, $9B, $75B and $800B, so their incomes are $350K/s to $8B/s, but we do not know which name is which.
Limited groups (6 tabs, 72 cells)
The Limited tab holds pets from paid, event and timed eggs. These are not map areas, so there is no speed gate, except for the Rift, which is a timed event area with an unknown requirement. Several tabs combine two or three wiki egg types; that pairing was worked out by matching each cell's reward and rarity to the wiki and is still to be confirmed by unlocking the pets.
Dr. Scramble
Tab
Limited
Cells
15 Verified in-game
Rarities
Mythic×3Cosmic×5Secret×3Eternal×3Divine×1
Speed needed
None (egg type, not a map area)
Guardian
—
Completion reward
Not visible in our screenshots (the progress bar was cut off).
15 cells. The wiki has no group with this name; the 15 pets are Biohazard Egg (5), Experimental Egg (5) and Unstable Egg (5), matched cell by cell through rewards, so the pairing is still to be confirmed. Toxic Hedgehog (wiki: Biohazard Egg) has no cell. Octophant was corrected to Divine. Claims give +0 speed. The Dr. Scramble event runs every 30 minutes (Fandom Updates).
Icon only, showing a purple pyramid or crystal item. The game shows no name or number for it, and its effect is unknown.
12 cells: Extinction Egg (5) plus Skeletal rerolls (7), pairing inferred from rewards. Cell 1 (Glyptodon) shows a truncated $2.2M reward. On 2026-10-09 the shop sold Extinction Eggs for 99 Robux (1), 249 (3), 799 (10) and 3,499 (50, struck-through 5,959). The card listed odds of 39%, 24%, 18%, 11%, 6.5% and 0.5% plus a 1% Skeletal card, with pictures but no names. Claims give +0 speed.
Not visible in our screenshots (the progress bar was cut off).
A Limited tab with 15 cells, not a World biome. The wiki lists 16 Rift pets; Abyss Overlord has no cell (its $1.25M/s wiki income was already suspicious). The Rift opens every 30 minutes with 3 banners of 5 exclusive animals, rotating server-wide every 3 hours (Fandom Updates). The speed requirement is unknown. Claims give +30K to +65K speed.
Icon only, showing a gold-striped cannon-like item. The game shows no name or number for it, and its effect is unknown.
12 cells: Monster Egg (6) plus Mecha Egg (6), pairing inferred from rewards. The wiki used "Monster" as the rarity; the game shows Legendary to Divine, and those are used here. Sold in the Robux store (Fandom Updates). All 12 base weights are 35 kg on the wiki, which looks like a placeholder, so the size bonus is disabled for them.
Pets (12)
Scorpio Legendary $10K/s
Froggo Mythic $50K/s
Crawler Cosmic $1.5M/s
Crocodon Secret $30M/s
Mecha Scorpio Secret $45M/s
Mecha Froggo Secret $155M/s
Mecha Crawler Secret $320M/s
Krakenoid Eternal $500M/s
Mecha Crocodon Eternal $680M/s
Mecha Krakenoid Eternal $1B/s
Dreadscale Divine $2B/s
Mecha Dreadscale Divine $4B/s
Brainrot Egg
Tab
Limited
Cells
6 Verified in-game
Rarities
Rare×1Epic×1Mythic×1Cosmic×1Secret×1Eternal×1
Speed needed
None (egg type, not a map area)
Guardian
—
Completion reward
Icon only, showing a gold-striped cannon-like item. The game shows no name or number for it, and its effect is unknown.
6 cells. The wiki used "Brainrot" as the rarity; the game shows Rare to Eternal. Limited egg from the store or events (Fandom Eggs). Claims give +640 to +860K speed.
Pets (6)
Tung Tung Sahur Rare $100/s
Bananita Dolphinita Epic $400/s
Belula Beluga Mythic $40K/s
Mangolini Parrochini Cosmic $800K/s
Bomboclat Crocolat Secret $20M/s
Strawberry Elephant Eternal $110M/s
About completion rewards
Each Pet Index tab has a progress bar with one item icon at the end. The game shows no name, number or description for the item, so we only describe what the icon looks like. Weapons appear on the World tabs (bats, clubs, a katana, an axe, a spear) and purple crystal or cannon-like items on the Limited tabs. What they do is unknown; if you have completed a tab, the item's tooltip would answer this.
Each individual cell also pays a claim reward of cash and speed. The cash is always 100 × the pet's base income, which is how this site verified 176 pets. The speed reward varies: Forest cells give a few hundred, Angels & Demons Divine cells give 600M, and most Limited tabs give nothing.
What the data labels mean
Verified in-game The pet's rarity and base income were matched against the in-game Pet Index on 2026-10-09. The Pet Index pays a claim reward equal to 100 × the pet's base income per second, so a reward of $100 confirms $1/s. Three pets (Scorpion, Rhinotaur, Glyptodon) show a one-decimal truncated reward in the game, which still agrees with the wiki value. Nineteen pets had their rarity corrected to what the game shows.
Estimated No source lists the base income. We worked it out from the Pet Index reward (reward ÷ 100) by matching the pet's rarity to the only cell with that rarity. Currently only Celestial Sunlion carries this label.
Unverified The numbers come from the Steal An Egg Wiki (Fandom) and have not been matched to the in-game Pet Index. This covers 22 pets that have no Pet Index cell (event dragons, Secret Shrine fusions, experiment pets) and the Enchanted Forest pets whose names are still locked.
Labels follow a strict priority: Estimated first, then Unverified, then Verified in-game. Anything still marked "to be confirmed" in our notes can never be shown as verified.