Steal An Egg Cosmic: Eggs, Pets & Speed

Zone 9 of 14 · 8 pets · wiki data synced Oct 25, 2026

Cosmic is zone 9 of 14 in Steal An Egg (the game's own updates call zones biomes). You need 700M Speed to enter, and 8 egg types spawn there, from the Centapede Egg (39.9%) to the Unicorn Egg (1 in 4,310). An average Cosmic egg hatches into $1.83M/s of base income. Below: every Cosmic egg with its drop chance and how many eggs you need, each pet's value, how to reach the Speed, and how Cosmic compares with Prehistoric and Cherry Blossom.

All eggs in Cosmic: egg list, chances and pets

Centapede Egg Hatches Centapede 39.9% Cosmic Gecko Egg Hatches Cosmic Gecko 34.4% Cosmic Gorilla Egg Hatches Cosmic Gorilla 19.6% La Vacca Saturno Saturnita Egg Hatches La Vacca Saturno Saturnita 4.55% Cosmic Dragon Egg Hatches Cosmic Dragon 0.74% Cosmic Skeleton Boss Egg Hatches Cosmic Skeleton Boss 0.5% Eternal Lunar Dragon Egg Hatches Eternal Lunar Dragon 0.31% Unicorn Egg Hatches Unicorn 0.02%

Pet	Rarity	Base $/s	Chance	Eggs for 50%	Eggs for 90%	Hatch	Hatch reward
Centapede	Epic	$1.5K/s	39.9%	2	5	2m	+960k Speed, $150k
Cosmic Gecko	Legendary	$30K/s	34.4%	2	6	4m	+1m Speed, $3m
Cosmic Gorilla	Mythic	$180K/s	19.6%	4	11	7m	+1.2m Speed, $18m
La Vacca Saturno Saturnita	Cosmic	$2.2M/s	4.55%	15	50	13m	—
Cosmic Dragon	Secret	$60M/s	0.74% (1 in 134)	93	309	3h	+1.4m Speed, $6b
Cosmic Skeleton Boss	Secret	$45M/s	0.5% (1 in 202)	140	464	2h 30m	+1.6m Speed, $4.5b
Eternal Lunar Dragon	Eternal	$250M/s	0.31% (1 in 321)	223	739	7h	+1.9m Speed, $25b
Unicorn	Divine	$1B/s	0.02% (1 in 4,310)	2,988	9,925	12h	+2.4m Speed, $100b

"Eggs for 50%": how many Cosmic eggs you need to see for an even chance of at least one of that pet. It uses the wiki's spawn chances: 1 − (1 − p)ⁿ. "Hatch reward": the Speed and cash the wiki lists for hatching that egg.

What is Cosmic in Steal An Egg?

Cosmic holds 8 pets on the wiki: 1 Epic, 1 Legendary, 1 Mythic, 1 Cosmic, 2 Secret, 1 Eternal, 1 Divine. By base income they run from Unicorn (Divine, $1B/s) down to Centapede (Epic, $1.5K/s), a spread of 666,667×.

It sits at position 9 on the Speed ladder: Prehistoric (17M – 18M) comes before it and Cherry Blossom (2.5B) after it. The Speed step from Prehistoric to Cosmic is 41×. From Cosmic to Cherry Blossom it is 3.6×.

The spawn chances on the wiki add up to 100%. 8 egg types have a chance listed.

Hatch times run from 2m for the Centapede Egg to 12h for the Unicorn Egg, as the wiki lists them.

The wiki first listed Cosmic pets on Aug 31, 2026 and the newest on Sep 4, 2026. Those are wiki page dates, not the game's patch notes.

How to unlock Cosmic

You need 700M Speed to enter Cosmic. By the wiki's treadmill numbers that is 350,000,000 steps on the base Treadmill (+2 Speed per step) or 233,334 on the Astral Treadmill (+3k Speed per step). Trails multiply Speed on top, up to 20× with the Moonbloom Trail; prices are on the treadmills and trails page.

To get here you pass Forest (None), Lake (900), Desert (10K), Jungle (40K), Snow (Not listed yet), Volcano (700K), Abyss Ocean (2.5M), Prehistoric (17M – 18M).

Hatching eggs in Cosmic also gives Speed and cash, as the wiki lists under each egg's reward: Centapede Egg +960k Speed, $150k; Cosmic Gecko Egg +1m Speed, $3m; Cosmic Gorilla Egg +1.2m Speed, $18m; Cosmic Dragon Egg +1.4m Speed, $6b; Cosmic Skeleton Boss Egg +1.6m Speed, $4.5b; Eternal Lunar Dragon Egg +1.9m Speed, $25b; Unicorn Egg +2.4m Speed, $100b.

Before it: Prehistoric (17M – 18M Speed). Next: Cherry Blossom needs 2.5B Speed. Speed comes from treadmills and trails: see treadmill and trail prices or the full Speed ladder.

Which Cosmic eggs are worth it

Weighted by the wiki's spawn chances, one random Cosmic egg is worth $1.83M/s of base income. 5 pets beat that average: Unicorn (Divine, $1B/s), Eternal Lunar Dragon (Eternal, $250M/s), Cosmic Dragon (Secret, $60M/s), Cosmic Skeleton Boss (Secret, $45M/s), La Vacca Saturno Saturnita (Cosmic, $2.2M/s). Eternal Lunar Dragon alone accounts for 43% of the average, because its chance and value together outweigh the others.

The rarest egg, the Unicorn Egg, hatches Unicorn ($1B/s), 548× the zone average. You need about 2,988 Cosmic eggs for an even chance at one and 9,925 for 90%; at the zone average those 2,988 eggs would hatch about $5.45B/s of other pets along the way.

Moving on pays: an average Cherry Blossom egg is worth $4.96M/s, 2.7× a Cosmic egg, but it needs 2.5B Speed. Coming from Prehistoric, Cosmic eggs are worth 1.44× as much as what you left.

Size and mutations change all of this: a Rainbow Unicorn earns $3.5B/s at base size, and a bigger one more still. The income calculator does the arithmetic for any weight.

Every Cosmic pet at a glance

Unicorn

Unicorn is a Divine pet worth $1B/s at base size (1,200 kg), $3.6T an hour; #48 of 265 overall. Golden makes it $2.5B/s and Rainbow $3.5B/s. Its Unicorn Egg is 0.02% (1 in 4,310) of Cosmic spawns: about 2,988 eggs for a 50% chance. Hatch time 12h. Listed on the wiki Sep 3, 2026, the Monsters Are Coming week.

Eternal Lunar Dragon

Eternal Lunar Dragon is an Eternal pet worth $250M/s at base size (60,000 kg), $900B an hour; #86 of 265 overall. Golden makes it $625M/s and Rainbow $875M/s. Its Eternal Lunar Dragon Egg is 0.31% (1 in 321) of Cosmic spawns: about 223 eggs for a 50% chance. Hatch time 7h. Listed on the wiki Aug 31, 2026, the Monsters Are Coming week.

Cosmic Dragon

Cosmic Dragon is a Secret pet worth $60M/s at base size (15,000 kg), $216B an hour; #108 of 265 overall. Golden makes it $150M/s and Rainbow $210M/s. Its Cosmic Dragon Egg is 0.74% (1 in 134) of Cosmic spawns: about 93 eggs for a 50% chance. Hatch time 3h. Listed on the wiki Sep 3, 2026, the Monsters Are Coming week.

Cosmic Skeleton Boss

Cosmic Skeleton Boss is a Secret pet worth $45M/s at base size (1,000 kg), $162B an hour; #109 of 265 overall. Golden makes it $113M/s and Rainbow $158M/s. Its Cosmic Skeleton Boss Egg is 0.5% (1 in 202) of Cosmic spawns: about 140 eggs for a 50% chance. Hatch time 2h 30m. Listed on the wiki Aug 31, 2026, the Monsters Are Coming week.

La Vacca Saturno Saturnita

La Vacca Saturno Saturnita is a Cosmic pet worth $2.2M/s at base size (740 kg), $7.92B an hour; #151 of 265 overall. Golden makes it $5.5M/s and Rainbow $7.7M/s. Its La Vacca Saturno Saturnita Egg is 4.55% of Cosmic spawns: about 15 eggs for a 50% chance. Hatch time 13m. Listed on the wiki Sep 4, 2026, the Monsters Are Coming week.

Cosmic Gorilla

Cosmic Gorilla is a Mythic pet worth $180K/s at base size (450 kg), $648M an hour; #190 of 265 overall. Golden makes it $450K/s and Rainbow $630K/s. Its Cosmic Gorilla Egg is 19.6% of Cosmic spawns: about 4 eggs for a 50% chance. Hatch time 7m. Listed on the wiki Sep 4, 2026, the Monsters Are Coming week.

Cosmic Gecko

Cosmic Gecko is a Legendary pet worth $30K/s at base size (18 kg), $108M an hour; #212 of 265 overall. Golden makes it $75K/s and Rainbow $105K/s. Its Cosmic Gecko Egg is 34.4% of Cosmic spawns: about 2 eggs for a 50% chance. Hatch time 4m. Listed on the wiki Sep 4, 2026, the Monsters Are Coming week.

Centapede

Centapede is an Epic pet worth $1.5K/s at base size (6 kg), $5.4M an hour; #236 of 265 overall. Golden makes it $3.75K/s and Rainbow $5.25K/s. Its Centapede Egg is 39.9% of Cosmic spawns: about 2 eggs for a 50% chance. Hatch time 2m. Listed on the wiki Sep 4, 2026, the Monsters Are Coming week.

Cosmic compared with Prehistoric and Cherry Blossom

Cosmic FAQ

Short answers to the questions people search for about Cosmic, computed from the wiki's numbers synced Oct 25, 2026.

What Speed do you need for Cosmic in Steal An Egg?

700M Speed. The zone before it, Prehistoric, needs 17M – 18M, and the one after, Cherry Blossom, needs 2.5B. On the free treadmill that is 350,000,000 steps at +2 Speed per step.

Which Divine pets are in Cosmic?

One: Unicorn ($1B/s, 0.02% (1 in 4,310) of spawns). Divine is tier 10 of 13 on the wiki's list; Cosmic holds 8 pets across 7 rarities.

Which Eternal pets are in Cosmic?

One: Eternal Lunar Dragon ($250M/s, 0.31% (1 in 321) of spawns). Eternal is tier 9 of 13 on the wiki's list; Cosmic holds 8 pets across 7 rarities.

Is there a Cosmic egg predictor?

No working one. Egg spawns are random per server, so nothing can read which egg comes next; "predictors" and "notifiers" guess. The published odds are the wiki's spawn chances in the table above, and the "eggs for 50% / 90%" columns turn them into how many eggs you need to see.

What is the rarest egg in Cosmic?

The Unicorn Egg, at 0.02% (1 in 4,310) of spawns. It hatches Unicorn (Divine, $1B/s). You need about 2,988 eggs for a 50% chance and 9,925 for 90%. The second rarest is the Eternal Lunar Dragon Egg at 0.31% (1 in 321).

What is the most common egg in Cosmic?

The Centapede Egg, 39.9% of spawns, which hatches Centapede (Epic, $1.5K/s). Centapede earns 1/1,217 of the zone's average egg value of $1.83M/s.

What is the best pet in Cosmic?

Unicorn, a Divine pet worth $1B/s at base size, from the Unicorn Egg at 0.02% (1 in 4,310). Second is Eternal Lunar Dragon at $250M/s, third Cosmic Dragon at $60M/s. Overall Unicorn is #48 of 265 pets.

How much is a Cosmic egg worth?

On average $1.83M/s of base income per egg, weighting each pet by the wiki's spawn chance. Most of that comes from Eternal Lunar Dragon (43% of the average). An average Cherry Blossom egg is worth $4.96M/s. An average Prehistoric egg is worth $1.27M/s.

How many pets are in Cosmic?

8 pets on the wiki: 1 Epic, 1 Legendary, 1 Mythic, 1 Cosmic, 2 Secret, 1 Eternal, 1 Divine. The full list with pictures is in the egg gallery.

What comes after Cosmic?

Cherry Blossom, zone 10, which needs 2.5B Speed. Its average egg is worth $4.96M/s, 2.7× a Cosmic egg. The whole ladder is on the zones page.

When was Cosmic added to Steal An Egg?

The wiki listed its first pets on Aug 31, 2026 and its newest on Sep 4, 2026. No official listing names it, so the wiki date is the closest record.

What mutations can Cosmic pets have?

Any mutation applies to any pet: on the wiki Silver (6 in 100), Golden (4 in 100) and Rainbow (1 in 100) come from the hatch roll, and the rest from events or consumables. A Golden Unicorn earns $2.5B/s and a Rainbow one $3.5B/s; all multipliers are on the mutations page.

How rare is a Rainbow Unicorn?

On the wiki Rainbow is a 1 in 100 roll on any hatch and the Unicorn Egg is 1 in 4,310 Cosmic eggs, so a Rainbow Unicorn is roughly 1 in 431,000 eggs if the rolls are independent. It would earn $3.5B/s at base size; Golden (4 in 100) gives $2.5B/s.

Source: Cosmic on the Steal An Egg Wiki (CC BY-SA). Synced Oct 25, 2026.