Steal An Egg Mutations Tier List (October 2026) Complete Guide

Mutations in Steal An Egg are special pet variants that multiply a pet’s income and sell value on top of its size roll. The best mutation is Rainbow (3.5x), followed by Parasite (3x), while Silver and Bloom sit at the bottom under 1.3x. Mutated pets earn more Cash every second, sell for more, and make you a prime stealing target — so picking the right one matters. My tier list below ranks all mutations by multiplier, how reliably you can get them, and whether they’re worth farming in October 2026.

How I Ranked Every Mutation?

I judged each mutation on three criteria: the income multiplier it adds, how reliably you can obtain it, and the grind or cost behind it. Your earnings are calculated as Base Value × Mutation × Size, so no mutation works alone — but anything at 2.75x or higher turns even a mid-tier pet into a money printer. Event multipliers shift with updates, and Update 6’s Dr. Scramble rework made Scrambled easier to stock up on. Note that several newer mutations only come from limited events, which is exactly why most tier lists skip them.

S-Tier Mutations: Rainbow and Parasite

Rainbow (3.5x) is the king. It rolls on roughly 1 in 100 hatches, shows up as a shimmering animated shell, and can also appear from Fuse Machine merges. Parasite (3x) never hatches naturally — feed five Infested Eggs to the Hungry Frog during its event and hope for the 1.5% Parasite Egg drop. Both are the only mutations near 3x, and both are worth every minute of farming.

A-Tier Mutations: Guaranteed and Consumable Picks

Enchanted (~2.8x) is the sleeper pick most players miss: its Enchanted Essence from the Butterfly Bloom event applies a mutation 100% of the time — no 10% gamble. Fractured comes from Rift Boss shop consumables, Scrambled from Dr. Scramble’s Experiment Shop using Samples, and Nitro from the Nitro Race trophy shop. All three consumables apply at a 10% chance each, so buy in bulk. The event-only Monstrous mutation (low chance from Monster Chests) is also worth grabbing when the Hungry Monster event rotates around.

B-Tier and C-Tier Mutations

Golden (2.5x) and Spirit Bloom (2.5x) are solid earners — Spirit Bloom drops from the Sakura Incubator once it’s fully charged with Sakura Crystals, and a higher charge shifts the odds away from plain Bloom. Bloom (1.25x) is the common Sakura result, and Silver (1.2x) is the most frequent hatch roll at 6 in 100. Take them happily on a hatch, but never grind specifically for either.

Pro Tips Most Players Miss

• Fusing three pets that already share a mutation keeps that mutation while rerolling size — my favorite way to upgrade a Rainbow pet’s weight.
• Size stacking beats tier chasing: a pet at 100x its base weight earns about 17x its base value before mutations multiply on top.
• Tinted shells (gold or rainbow hue) guarantee a mutation — steal those eggs first.
• Save your best egg for the Sakura Incubator, and check money-per-second before fusing so you never merge away a top earner.
• Saturday Admin Abuse events boost mutation odds server-wide for free rolls.

FAQs

What is the best mutation in Steal An Egg?

Rainbow at 3.5x is the best mutation, with Parasite (3x) a close second that’s easier to target during the Hungry Frog event.

What is the rarest mutation?

Rainbow, at roughly a 1-in-100 hatch roll. Golden is 4-in-100 and Silver is 6-in-100.

Do mutations stack with size?

Yes. Income = Base Value × Mutation × Size, so a heavy mutated pet always outearns a plain one of the same species.

How do I get the Parasite mutation?

Feed five Infested Eggs to the Hungry Frog; it has about a 1.5% chance to drop a Parasite Egg.

Which mutations can I apply directly?

Fractured, Scrambled, and Nitro consumables each apply at 10% chance, while Enchanted Essence applies at 100%.

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