Steal An Egg Mutation Rarity Rankings: Odds and Requirements | Roblox
When comparing mutation rarity in Steal An Egg, you need to distinguish mutations rolled on standard eggs from those obtained through dedicated equipment or events. A ranking by multiplier is not the same as a ranking by difficulty of obtaining them.
This article gives a reference ranking for the 3 standard-roll mutations using published settings from an older version, and compares event mutations by their acquisition requirements. We have not found data that puts every mutation on a comparable probability basis, so we do not name an unsupported overall rarest mutation.
What Is Steal An Egg?
Steal An Egg is a Roblox game in which you carry eggs guarded by animals back to your base and collect the pets that hatch. Use your pets’ income to upgrade your base and treadmill. As you run faster, you can explore areas farther away. The pets you collect can differ in size and mutations as well as species.
The game supports PCs, phones, tablets, and consoles. Start by earning income from eggs you can bring back safely, then work toward mutations as you upgrade and explore.
Standard-Roll Mutation Rarity Ranking: Rainbow, Golden, and Silver
The following ranking orders the configured weights from smallest to largest in the community wiki’s v490 standard-roll data. It is neither a ranking based on measured current appearance rates nor a ranking of every mutation.
| Reference rank | Icon | Mutation | Configured standard-roll weight | How to read it |
|---|---|---|---|---|
| 1st |  |
Rainbow | 1 | The smallest weight among these 3 mutations. Its listed multiplier, ×3.5, is also high. |
| 2nd |  |
Golden | 4 | A higher weight than Rainbow. The Japanese name Gold also refers to Golden. |
| 3rd |  |
Silver | 6 | The largest weight among these 3 mutations. Its listed multiplier is ×1.2. |
Mutation icons have been checked against the images on Steal An Egg Wiki (Fandom). Some images were recreated using the appearance of the references. Source material: CC BY-SA (rights in game assets with separate notices remain with their respective rights holders).
Weights are values in a roll table, not a required number of eggs that guarantees a result. Do not combine results from different game versions, Luck settings, or admin-event conditions to state that a mutation appears once every fixed number of attempts.
The Historical 1%, 4%, and 6% Apply to the Initial Standard Roll Without Luck Modifiers
The older v490 data from the community wiki we reference lists None 89, Silver 6, Golden 4, and Rainbow 1 in its standard-roll table, totaling 100. Under that source’s stated conditions—an initial standard roll without Luck modifiers—the weights correspond to the following probabilities.
| Roll result | Historical weight | Reference probability under the source’s conditions |
|---|---|---|
| None | 89 | 89% |
| Silver | 6 | 6% |
| Golden | 4 | 4% |
| Rainbow | 1 | 1% |
These probabilities are not guaranteed for every egg, Luck setting, or event condition in the current game. The same wiki explains that Luck and admin-event modifiers can change the roll table. Read these separately from the final result after additional rolls or event-specific mutation applications. They are conditional figures from an older source, not appearance rates measured by our editorial team in the current game.
At 1%, Are You Guaranteed Rainbow After 100 Attempts?
No. If the success chance is always 1%, each attempt is independent, and there is no pity system or increase in probability, the chance of no successes in 100 attempts is 0.99¹⁰⁰ ≈ 36.6%. The chance of at least 1 success is 1−0.99¹⁰⁰ ≈ 63.4%.
An average of 1 success per 100 attempts is different from a guaranteed success within 100 attempts. This is a mathematical example assuming a fixed 1% chance; it does not predict or guarantee what will happen when you hatch 100 eggs in the current game.
An Event Item’s 10% Application Chance Is a Different Roll From Normal Hatching
The 10% described in our existing guide for Rift and Dr. Scramble mutation items is the success chance of applying a mutation when you use the item. That action is different from the historical standard roll that selects Rainbow, Golden, or Silver from a normal egg.
Do not reinterpret this as multiplying an event’s 10% by Rainbow’s weight, or as hatching 10 eggs to get an event mutation. First check whether the item targets an egg or a pet, when it can be used, and the success chance currently displayed.
How Success Probability Changes With Independent 10% Attempts
If every attempt has a 10% success chance, attempts are independent, and there is no pity system, probability increase, or attempt limit, the probability of at least 1 success in n attempts is 1−0.9ⁿ. The table gives mathematical reference values under those assumptions.
| Attempts | Reference probability of at least 1 success | Reference probability that every attempt fails |
|---|---|---|
| 1 attempt | 10.0% | 90.0% |
| 5 attempts | 41.0% | 59.0% |
| 10 attempts | 65.1% | 34.9% |
| 20 attempts | 87.8% | 12.2% |
| 30 attempts | 95.8% | 4.2% |
Even after 10 attempts, there is still about a 34.9% chance that every attempt fails. Success is not guaranteed after 30 attempts either. If the probability does not change, the next attempt still has a 10% chance regardless of how many times you have already failed. Rather than assuming a streak of failures makes the next attempt more likely to succeed, review your remaining materials and the pet or egg you are targeting.
This reference table does not establish whether the current game has a pity system or what its actual application rate is. If the game displays a different probability or a mechanic that helps after failed attempts, use those conditions instead.
The Effort Needed to Prepare Each Attempt Also Matters
Even with the same 10% chance, the time needed to gather exchange materials and the opportunities to join an event can change the effort required to obtain a mutation. Keep separate records for eggs brought home, event materials collected, and mutation items used, rather than combining them into one attempt count. This makes acquisition routes easier to compare.
For which materials to use and where, see the step-by-step acquisition routes in the mutation list. To compare how much a mutation increases income, see the mutation multiplier and stacking examples.
Why Multiplier Rankings and Rarity Rankings Are Separate
A multiplier describes how much a mutation affects income once applied. Rarity concerns how hard it is to obtain under particular conditions. Rainbow ranks highly both in the standard-roll reference ranking and in comparisons of individual multipliers, but that alone does not prove it is rarer than every event mutation.
For example, comparing a roll you can attempt often with a reward available only during a limited period requires data on acquisition opportunities, success rates, and required materials. We have not verified ownership counts or trading values either, so this article does not rank mutations by price, popularity, or ownership rate.
What Makes Event and Equipment Mutations Hard to Obtain?
| Icon | Mutation or group | Source in our existing guide | What affects acquisition difficulty |
|---|---|---|---|
 |
Parasite | Special eggs and Hungry Monster rewards | Whether you can reach the dedicated reward. Keep this separate from standard egg-roll attempts. |
 |
Fractured | Rift / Boss Shop | The progression needed to participate, required tokens, and the item’s application conditions. |
 |
Scrambled | Dr. Scramble / Experiment Shop | Required Samples, exchange requirements, and the conditions for using the item on an egg. |
 |
Bloom | Sakura Incubator | Reaching Cherry Blossom, unlocking the equipment, and charging it. |
 |
Spirit Bloom | Sakura Incubator | How its charging and roll requirements differ from Bloom. |
| Enchanted, Nitro, and Spectral | Additional published information under review | Do not include them in an overall ranking until their current acquisition routes and effects have been checked. |
Even if a mutation first appeared as a limited-time reward, returning events, permanent availability, or the use of items players already own may change the situation later. Do not conclude it is definitely unobtainable now solely because someone saw it in an old event.
3 Things to Prepare Before Hunting Rare Mutations
1. Build Enough Speed to Bring Eggs Home
Finding a good egg and carrying it back to your own base are different challenges. If you keep getting caught in the same place, earn income in a nearer area and upgrade your treadmill. If carrying an egg slows you down, do not insist on taking a large one: choose an egg you can transport at your current speed.
2. Check Where Event Rewards Come From and Where Materials Are Spent
When pursuing a special reward, check not just where to participate but what to collect and where to exchange it. Before buying an item, check whether it is for eggs or pets, whether it must be used before hatching, and whether it has success conditions.
Admin-event dates and times can change in updates, so this page does not freeze an old date for the “next” event. Check the ongoing and upcoming events list for the relevant announcement and schedule.
3. Record Rarity and Income per Second Separately
If collecting is your goal, you may want to prioritize mutations you do not own. If you want to increase base income, compare income per second rather than mutation names alone. Even a pet with a lower multiplier may outperform another pet with a higher multiplier if its original income or size is greater. For worked examples of choosing pets for income, see our mutation and size comparison.
| Goal | What to prioritize |
|---|---|
| Collect mutations | Types you do not own, current opportunities to obtain them, and duplicates in your collection. |
| Increase base income | The pet’s income per second, size, mutation combination, and available base slots. |
| Get event rewards | The event period, participation requirements, materials, and how you will use the reward. |
Are There Codes That Help You Get Mutations?
When checked on October 22, 2026, MetaNew’s Steal An Egg codes list had 0 active codes. We had not confirmed any code that guarantees a mutation item, or the presence of a code-entry field. Do not reuse codes from other games; check new official announcements and the current listing.
Steal An Egg Codes
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Frequently Asked Questions
Is Rainbow the Rarest Mutation?
Rainbow has the smallest weight among the 3 standard-roll mutations in the historical settings. However, there is not enough comparable data to give a definitive overall ranking that also includes event-limited acquisition opportunities.
Is Parasite Always Rarer Than Rainbow?
These mutations have different acquisition routes, so names or multipliers alone cannot settle the comparison. You would need comparable data on event access, reward requirements, and the number of attempts.
Does a Rare Mutation Make a Pet the Strongest?
No. You need to compare species, size, mutation, and final income together. If you are upgrading primarily for income, also check the pet replacement advice in the Steal An Egg guide.
Before hunting rare mutations, check the guide’s treadmill upgrade order and sources for 8 mutations. Expanding the area from which you can bring eggs home lets you keep exploring while upgrading.
Scope and Sources
This article was prepared on October 22, 2026 by cross-checking MetaNew’s game page, our existing guide, and the public sources below. These figures are not results of a new in-game test by our editorial team. Multipliers and acquisition requirements can change in updates, so check the in-game display before consuming an item.
- Steal An Egg on Roblox (official): basic gameplay and supported devices.
- Steal An Egg Wiki (Fandom): mutation icons, multipliers for 8 mutations, and how size differs. Page checked directly on October 22, 2026.
