Steal An Egg Mutation Tier List: Value Rankings 2026

Mutations are the single biggest factor in determining whether a Steal An Egg pet is worth a fortune or barely tradeable, yet most players have no idea which ones actually move the needle. This steal an egg mutation tier list breaks down every mutation currently in the game, ranks them by real trade value, and shows you exactly which pets deserve a spot in your inventory. Since the game launched on July 25, 2026, and has already pulled in over 10.9 million visits according to the official Roblox game page, the trading scene has exploded faster than anyone expected, which means knowing your mutation values now gives you a massive head start over casual players who are still hatching blindly.

The community has been tracking mutation values since week one, and the consensus is clear: not all mutations are created equal. Some can multiply a pet's worth by ten or more, while others barely register on the trading radar. Whether you are a seasoned trader looking to flip pets for profit or a newcomer trying to avoid getting scammed out of your best hatch, this guide gives you the complete steal an egg value tier list with current rankings, practical trading strategies, and the inside scoop on which mutations the community consistently undervalues.

How the Steal An Egg Mutation System Works

Before we dive into the rankings, you need to understand how mutations actually function in Steal An Egg. When you hatch an egg, there is a small chance the pet comes out with a mutation attached, which permanently alters its appearance and, more importantly, its trade value. The mutation system works alongside the size system, so a pet can have both a mutation and a size modifier simultaneously, which is where the real money lies in the trading market.

According to community data gathered from the Roblox Games API, Steal An Egg is a pet simulator and tycoon hybrid where you steal eggs from pets, hatch them to collect rare pets, earn money from your pets, upgrade your treadmill and base, and train on the treadmill to gain Speed. The mutation system was designed to give players another layer of rarity beyond just the base pet tier, and it has become the primary driver of the trading economy since the game's rapid rise to popularity.

Mutation Rarity Tiers

Every mutation in Steal An Egg falls into one of several rarity tiers, and this determines both how often you see it and how much it adds to a pet's value. The rarity system works on a simple principle: the rarer the mutation, the higher the value multiplier, but there are exceptions where certain mutations are rarer than their value would suggest, which creates the underrated pets that savvy traders exploit.

These numbers come from player testing and community reports rather than official developer documentation, so they may shift with future patches. What matters for your trading strategy is understanding that the gap between Epic and Legendary mutations is enormous, and that is where most of the serious value in the steal an egg trading tier list concentrates.

How Mutations Stack With Sizes

The real value explosion happens when a mutation combines with a rare size modifier. A pet with a Legendary mutation and a Huge size can be worth exponentially more than the sum of its parts, because collectors will pay massive premiums for the combination. This is why you should never trade away a mutated pet without checking its size first, since you could be sitting on a fortune without realizing it.

The size system in Steal An Egg adds another layer of complexity to the steal an egg pet rankings explained in this guide. When you are evaluating a pet's worth, you need to consider both the mutation and the size together, because the market values certain combinations far more than others. For a deeper breakdown of how sizes affect pet values, check out our huge egg size guide which covers the complete size tier list and how it interacts with mutations.

S-Tier Mutations: The Cream of the Crop

Speed Milestones and Biome Unlocks in Mutation Hunting

Speed is the hidden gatekeeper for mutation farming. The game's official description confirms that training on the treadmill to gain Speed unlocks new biomes, and community reports indicate specific Speed milestones trigger these biome transitions. Since the rare-egg spawn race occurs roughly every five minutes, players who neglect treadmill training will consistently miss these spawn windows. Prioritize Speed upgrades before grinding for S-tier mutations—a faster player reaches guarded nests first, secures eggs before rival players can hit them and steal the carried egg, and cycles more hatch attempts per hour, directly increasing mutation roll chances.

These are the mutations that every serious trader dreams about, and they command the highest prices in the market by a wide margin. If you hatch a pet with one of these mutations, you have essentially won the lottery, and you should think very carefully before trading it away. The S-tier mutations are the ones that define the steal an egg mutation tier list because they are so rare that seeing one in a trade chat is an event.

Rainbow is the undisputed king of mutations in Steal An Egg, and it sits at the very top of every value ranking. This mutation gives your pet a constantly shifting rainbow color scheme that looks incredible in motion, and collectors cannot get enough of it. The Rainbow mutation is so valuable that even a Common pet with Rainbow can trade for multiple Legendary pets, which tells you everything you need to know about its market position. We have a dedicated rainbow mutation guide that covers this mutation in exhaustive detail, including the exact value multipliers and trading strategies.

Galaxy is the second most valuable mutation, and it gives your pet a swirling cosmic pattern with stars and nebulas that makes it look like a piece of the night sky. The Galaxy mutation is slightly more common than Rainbow, but it still commands enormous prices because of its visual appeal and the prestige factor of owning one. Players who managed to grab Galaxy pets in the first week have seen their value multiply several times over as demand has grown.

Golden rounds out the S-tier, and while it is technically less rare than Rainbow or Galaxy, its universal appeal keeps it at the top of the value charts. A Golden pet has a shiny metallic gold appearance that reads as "wealth" at a glance, and traders consistently pay premiums for it. The Golden mutation is also one of the most recognizable, which makes it easier to flip quickly when you need liquid value.

A-Tier Mutations: Solid Value With Strong Demand

The A-tier mutations are where most serious traders operate, because they offer excellent value without the extreme rarity that makes S-tier pets nearly impossible to find. These mutations are rare enough to command respect in trade chats but common enough that you can actually build a trading strategy around them. Understanding this tier is essential for anyone looking to climb the steal an egg value tier list through consistent trading.

Shadow is the standout A-tier mutation, giving your pet a dark smoky appearance with glowing eyes that looks genuinely menacing. The Shadow mutation has a dedicated fanbase among players who prefer darker aesthetics, and this niche demand keeps its value consistently high. Because Shadow pets appeal to a specific taste, they can sometimes be undervalued by traders who do not understand the collector market.

Crystal is another strong A-tier option, and it makes your pet look like it is carved from translucent gemstone with light refracting through its body. The Crystal mutation is particularly popular with players who collect matching sets, which means you can often get better than market value if you find the right buyer. This mutation also pairs exceptionally well with certain pet designs, creating visual combinations that drive up prices further.

Lava rounds out the A-tier with a molten rock appearance that has glowing cracks running through the pet's body. The Lava mutation has grown in popularity since launch, and community data suggests its value has been steadily climbing as more players discover how striking it looks on certain pets. If you can find a Lava pet with a good base tier, you have a solid trading asset that will hold its value.

A-Tier Trading Strategy

The key to profiting from A-tier mutations is understanding that their value fluctuates more than S-tier mutations, which means timing matters. When a new pet is released, A-tier mutations on that pet tend to spike in value before settling down, so you can profit by trading for these pets early and selling them once the hype peaks. This requires paying attention to update announcements and community sentiment, but the payoff is worth the effort.

B-Tier Mutations: Reliable But Not Exciting

B-tier mutations are the workhorses of the Steal An Egg trading economy, and they form the backbone of most players' inventories. These mutations add noticeable value to a pet but do not generate the kind of excitement that drives bidding wars. For new traders, B-tier mutations are actually the best place to start, because they are common enough to learn the market without risking huge amounts of value.

Frost is the most recognizable B-tier mutation, coating your pet in ice crystals with a blue-white color scheme that looks clean and professional. Frost pets are consistently tradeable because the mutation appeals to a broad audience, and you can usually find buyers without too much effort. The downside is that Frost does not command premium prices, so you need volume to make significant profit.

Electric gives your pet crackling lightning effects that pulse across its body, and it is one of the more visually dynamic B-tier mutations. Electric pets have a dedicated following among players who enjoy flashy aesthetics, which creates steady demand. The value of Electric mutations has remained stable since launch, making them a safe trading option.

Toxic is the final B-tier mutation, giving your pet a green bubbling appearance that suggests dangerous chemicals. The Toxic mutation has a more niche appeal than Frost or Electric, which means it can sometimes take longer to find buyers. However, dedicated collectors of Toxic pets will pay fair prices, so this mutation is still worth holding.

C-Tier and D-Tier Mutations: The Steal An Egg Worst Pets

Not every mutation is worth celebrating, and the C-tier and D-tier mutations are the ones that traders actively avoid. These mutations add minimal value to a pet, and in some cases, they can actually make a pet harder to trade because collectors do not want them cluttering their inventories. Knowing which mutations fall into this category is just as important as knowing the top-tier options, because it prevents you from overvaluing your pets.

Basic mutations are the most common and add almost no value to a pet. These are the default mutations that you will see constantly, and they do not generate any excitement in trade chats. If you hatch a pet with a Basic mutation, you should treat it as if it had no mutation at all for trading purposes.

Minor mutations are slightly better than Basic but still fall into the steal an egg worst pets category. These mutations add a small visual change that most players barely notice, which means they do not move the needle on value. The best strategy with Minor mutations is to use them as trade filler when you need to balance out a deal.

Faded mutations are arguably the worst in the game, because they make a pet look worse than the base version. A Faded mutation drains the color from your pet, leaving it looking washed out and unappealing. Players actively avoid Faded pets, and you will struggle to trade them for anything of value.

Underrated Mutations Worth Watching

The steal an egg trading tier list is not static, and some mutations are consistently undervalued by the broader community. These underrated pets represent opportunities for traders who can spot value before the rest of the market catches on. If you can build a collection of underrated mutations now, you position yourself to profit when the community eventually realizes their worth.

Phantom is the most underrated mutation in the game right now, giving your pet a translucent ghostly appearance with a subtle glow. The Phantom mutation has a small but passionate collector base, and these collectors will pay premium prices for the right pets. Because most traders overlook Phantom, you can often acquire these pets at below-market prices and flip them to collectors for significant profit.

Solar is another underrated option, giving your pet a warm golden glow that is visually distinct from the Golden mutation. The Solar mutation is rarer than its current market value suggests, which means there is room for appreciation as more players discover it. Community reports suggest that Solar pets have been slowly climbing in value, and this trend may continue.

Cosmic rounds out the underrated list, and it is often confused with the much more valuable Galaxy mutation. Cosmic gives your pet a starfield pattern that is similar to Galaxy but less detailed, and this similarity causes traders to undervalue it. However, collectors who specifically want the cosmic aesthetic will pay fair prices, making this a solid trading opportunity.

How to Evaluate a Mutated Pet's Trade Value

Now that you understand the mutation tiers, you need a practical framework for evaluating any mutated pet you encounter. This process will help you avoid overpaying for pets and ensure you never accidentally trade away something valuable. The steal an egg pet rankings explained in this section apply to every trade you will ever make in Steal An Egg.

The first step is identifying the exact mutation and confirming it is not a lookalike. Some mutations look similar at a glance, but their values are wildly different, and scammers will try to exploit this confusion. Take your time to examine the pet carefully and compare it to known examples before committing to a trade.

The second step is checking the base pet tier, because the same mutation on different pets can have very different values. A Rainbow mutation on a Legendary pet is worth far more than a Rainbow mutation on a Common pet, even though the mutation itself is identical. The base tier acts as a multiplier on the mutation value, so you need to consider both factors together.

The third step is researching current market prices before you trade. The Steal An Egg trading market moves quickly, and prices that were accurate yesterday may be outdated today. Check trade chats, community forums, and any price tracking resources to get a sense of current values before making your move.

For a more detailed breakdown of how base pet values work and how to price individual pets, our pet value guide covers the complete pricing system with current market data and trading tips.

Frequently Asked Questions

What is the rarest mutation in Steal An Egg?

The Rainbow mutation is currently the rarest and most valuable mutation in Steal An Egg, with an estimated hatch chance of around 1 in 50,000 based on community testing. Rainbow pets command the highest prices in the trading market, and they are the ultimate status symbol for serious collectors.

Do mutations increase a pet's base value?

Yes, mutations apply a value multiplier on top of the pet's base tier, so a mutated pet is always worth more than its unmutated counterpart. S-tier mutations like Legendary can multiply value by 25x or more, while C-tier and D-tier mutations add only a small premium, making them barely worth trading.

How often do mutation values change?

Mutation values shift with every game update and as the community's preferences evolve. New pets and balance changes can dramatically affect which mutations are in demand, so you should check current market conditions regularly rather than relying on outdated tier lists.

Can I remove a mutation from a pet?

No, mutations are permanent once a pet is hatched, and there is currently no way to remove or change them. This permanence is what makes mutated pets so valuable, since every mutation is a one-time roll that cannot be replicated.

What is the best strategy for trading mutated pets?

The best strategy is to focus on A-tier and underrated mutations that you can acquire at fair prices and flip to collectors who value them specifically. Avoid chasing S-tier mutations unless you hatch them yourself, as the asking prices are usually too high to leave room for profit.