Steal an Egg pets are not decorations. Every animal sitting in your pen is a passive income machine, and the gap between a starter Chicken ($1/s) and the top Divine Kitsune ($1.8B/s) is not a rounding error — it is literally 1.8 billion times more cash per second. Knowing which pets to prioritize, which to sell immediately, and which are worth risking a dangerous biome run for will decide how fast you progress through all 10 biomes in Roblox. This tier list covers every rarity bracket, the concrete income numbers behind each ranking, and the fastest path from Forest scraps to endgame dominance.
How does pet income work in Steal an Egg?
Every pet you hatch generates a fixed number of coins per second as long as it occupies an active pen slot. Your total passive income is the sum of every pet currently equipped. That means two things matter more than anything else: the raw income number on each pet, and whether that pet is actually filling a slot instead of sitting in storage.
Speed is what gates access to better pets. You train it on the treadmill, and each biome past Forest requires a minimum Speed threshold before you can even enter. Carrying an egg back to base applies a weight penalty, so most experienced players aim 15-20% above the listed biome minimum before attempting runs there. The eggs reset roughly every few minutes, so there is always a fresh supply — the bottleneck is whether you can survive the escape.
Mutations and size modifiers stack on top of a pet's base income. A Huge or Bloom-mutated version of the same pet pays more than a standard hatch of identical rarity. The exact multipliers are not published by the developer, so the rate your pen displays is the only reliable figure — third-party calculators vary and should not be trusted over the in-game number. For a full breakdown of how multipliers work, check our Steal an Egg mutations guide.
Steal an Egg pet tier list: full rankings
Rankings below prioritize three factors: raw income per second, how realistically obtainable the pet is at each progression stage, and how well the pet scales into late-game rebirths.
S-tier: Divine pets
Two pets sit at Divine rarity, and both are endgame targets that most players will spend weeks working toward.
Kitsune (Cherry Blossom biome) generates $1.8B/s, making it the single highest-earning pet in the game. Unicorn (Cosmic biome) sits at $1B/s. Both require access to the game's hardest biomes — Cherry Blossom sits behind a Speed requirement of 2.5 billion, the steepest gate on the map. Once you land either of these, they become permanent anchors for your passive income through every subsequent rebirth.
A-tier: Eternal pets
Eight Eternal pets spread across the late biomes, and they represent the realistic endgame for most active players before a Divine hatch lands.
Oni Tiger (Cherry Blossom) leads at $600M/s, followed by Eternal Lunar Dragon (Cosmic) at $250M/s, Mosasaurus (Prehistoric) at $180M/s, El Maja (Abyss Ocean) at $130M/s, Lava Dragon (Volcano) at $100M/s, Phoenix (Volcano) at $85M/s, and Ice Dragon (Snow) at $65M/s. The limited Brainrot Egg also contains Strawberry Elephant (Eternal) with a 1% hatch chance.
Eternals require consistent runs in the highest biomes and significant Speed investment. They are worth prioritizing over grinding for a second Cosmic pet — the income jump from Cosmic to Eternal is roughly 100x.
B-tier: Secret pets
Secret pets are the chase targets of each late biome and the first bracket where income enters the millions per second. Stag (Cherry Blossom) leads the tier at $145M/s, followed by Cosmic Dragon ($60M/s), Tralaledon ($32M/s), T-Rex ($25M/s), Kraken ($15M/s), Cerberus ($8M/s), Yeti ($5M/s), and King Snake ($3.5M/s).
The five-minute rare-egg race windows give the best odds for Secret hatches. Night resets can also refresh valuable nests. Keep every Secret pet until you replace it with an Eternal or Divine — they remain strong earners across multiple rebirths.
Kitsune tops the income chart
C-tier: Cosmic and Mythic pets
This bracket covers the reliable mid-to-late game earners that fund the Speed training needed to reach Secret and Eternal territory.
Top Cosmic performers include Koi ($12M/s) and Snowy Owl ($7.5M/s) from Cherry Blossom, La Vacca Saturno Saturnita ($2.2M/s) from Cosmic, Beluga Whale ($850K/s) and Whale Shark ($700K/s) from Abyss Ocean, and King Mammoth ($400K/s) from Snow.
For Mythics, Red Panda ($450K/s) from Cherry Blossom leads, with Ankylosaurus ($120K/s), Cosmic Gorilla ($180K/s), Orca ($80K/s), Chillin Chilli ($55K/s), Mammoth ($42K/s), and Tiger ($28K/s) filling out the tier. These keep your economy moving while you push toward the next biome unlock.
D-tier: Legendary and below
D-tier is not worthless — it is where every run starts, and hitting the Legendary bracket in your current biome is the single biggest early income jump available.
A starter Chicken earns $1/s. A Brr Brr Patapim (Forest Legendary) earns $1.8K/s. That is a 1,800x multiplier from the same biome. The same pattern repeats: Axolotl (Lake Legendary) at $2.8K/s, Snake (Desert Legendary) at $3.6K/s, Gorilla and Orangutini Ananassini (Jungle Legendaries) at $4.8K/s and $5.5K/s, and Polar Bear (Snow Legendary) at $7K/s.
Sell or fuse Common and Uncommon pets the moment you have a Legendary in that biome. Dead weight in pen slots costs you income on every cycle.
Best pets by biome: what to target at each stage
Pushing to the next biome almost always beats grinding for a better pet in your current one. The top pet in Prehistoric ($180M/s) earns roughly 100,000 times more than the top pet in Forest ($1.8K/s). Here is the ceiling for each zone and a realistic near-term target if you cannot yet reach the biome boss.
For a detailed breakdown of every zone's speed requirements and guardian mechanics, the Steal an Egg biomes guide covers every threshold in full.
Biome order determines income jumps
What about the limited Brainrot Egg pets?
Six pets exist entirely outside the biome structure. They hatch only from the limited Brainrot Egg, which appears around Admin Abuse events rather than on a fixed schedule. These pets cannot be obtained through normal Speed-gated progression regardless of how far you have advanced.
Strawberry Elephant at 1% means an average of 100 attempts for a single hatch. Stockpiling eggs before an event window is the only real way to improve your odds. These pets count toward the overall index total but do not contribute to the Speed, Money, and Bat Skin rewards that completing a zone's eight-pet set pays out.
How to hatch better pets faster
The fastest path through the tier list follows a consistent pattern: hit Legendary in your current biome, reinvest into Speed, push to the next biome, repeat. Grinding for Mythics in an early biome when the next zone's Legendaries pay more is the most common mistake new players make.
A few mechanics accelerate the timeline significantly:
- Rebirths (especially tiers 5 and 6) add passive income percentages and improve mutation odds on Legendary eggs. Rebirth once you have at least one Legendary in your current biome and income growth has visibly plateaued. Do not Rebirth at Forest or Lake tier — the bonus is too small to justify losing your income base.
- Rare-egg races run in five-minute windows and give the best odds for Secret-tier hatches. Showing up for these consistently is worth more than any number of standard runs.
- Sort your pen by actual income per second, not by rarity color. Use Equip Best after every session. A Mythic from Volcano beats a Cosmic from Forest in practice, even though the rarity label looks worse.
- Size and mutations multiply base income. A Huge mutated version of the same pet outperforms a standard version of the same species by a significant margin. Always keep the mutated copy when you have to choose.
If you are new to the game and want a foundation before diving into advanced pet farming, the Steal an Egg beginner guide covers the core nest-to-base loop in detail.
Speed training unlocks new biomes
How many pets are in Steal an Egg?
The full index contains 86 pets. Eighty of those spread across the 10 permanent biomes at exactly 8 pets per zone, and 6 more come exclusively from the limited Brainrot Egg. Rarity runs 10 tiers deep: Common, Uncommon, Rare, Epic, Legendary, Mythic, Cosmic, Secret, Eternal, and Divine.
The income jump between tiers follows a rough order-of-magnitude pattern through most of the ladder, but the step from Cosmic into Secret is closer to a 4x jump, and Divine widens the gap again — the Kitsune at $1.8B/s earns nearly three times what the second-place Unicorn manages at $1B/s.
Do size and mutations matter more than rarity?
Yes, in many cases. Two pets of identical species and rarity can generate very different income depending on size and mutation rolls. The developer has not published exact multipliers, so the only reliable figure is the actual per-second rate displayed in your pen for that specific pet. Never copy mutation multipliers from other Roblox games — Steal an Egg uses its own math.
The practical rule: always keep the mutated or larger version of a pet over a standard copy of the same animal. When comparing pets across different species or biomes, the income number on the card is the only comparison that matters.
For everything else you need to know about the game, browse the full Roblox guides collection — it covers biomes, mutations, beginner strategies, and more.