Mutation Steal an Egg Guide: Color Auras, Multipliers & Pet Sizes
Check every mutation multiplier in Steal an Egg, learn the additive stacking formula, compare official examples, and understand mutation, income, and weight bonuses.
Spectral Mutation — Update #9: Spectral provides an x2.75 income multiplier. Capture ghosts with the ghost vacuum to collect Souls, then trade 500 Souls for one consumable. The exchange is guaranteed; applying it to an egg has a 25% success chance. Read the Spectral Mutation Steal an Egg guide for the unlock steps.
In Roblox Steal an Egg, Pet Mutations (often referred to as Color Mutations or Auras) are special visual traits that significantly increase a pet's income rate. Unlike standard pet hatches, mutations apply a powerful Income Multiplier that stacks independently with a pet's size trait.
This comprehensive Mutation Steal an Egg guide breaks down all available color mutations, their exact income multipliers, how mutation bonuses stack, how to obtain special variants, and how weight or size can further increase Cash ($/s). For a practical upgrade strategy, read the Mutation Multiplier Steal an Egg guide.
🎨 All Color Mutations & Income Multipliers
Color mutations alter a pet's appearance with particle effects or metallic textures and grant an income multiplier independent of its weight/size class.
| Mutation | Income Multiplier | Stacking Bonus | Description & How to Obtain |
|---|---|---|---|
| Rainbow | x3.5 | +2.5 | Animated rainbow effect continuously changing colors. Extremely rare hatch roll (roll weight 1 out of 100). |
| Parasite | x3 | +2.0 | Not obtainable through normal hatch rolls. Comes from its dedicated Parasite Egg, obtained through the feeding event. |
| Enchanted | x2.85 | +1.85 | Applied with Enchanted Essence, crafted from Butterfly Bloom materials at the Enchanted Altar. The Essence has a 100% success chance. |
| Fractured | x2.75 | +1.75 | Not obtainable through normal hatch rolls. A Mutation Consumable can apply it to an egg with a 10% chance. See the Fractured Mutation Guide. |
| Scrambled | x2.75 | +1.75 | Poison-like effect. Follow the How to Use Scrambled guide to buy it from the Dr. Scramble Experiment Shop and apply it to an egg with a 10% chance. |
| Spectral | x2.75 | +1.75 | Capture ghosts with the ghost vacuum; trade 500 Souls for one Spectral Mutation consumable. Exchange is guaranteed; application to an egg has a 25% success chance. |
| Nitro | x2.75 | +1.75 | Applied with a Nitro Mutation Consumable obtained with Trophies from the Nitro Race event. |
| Golden | x2.5 | +1.5 | Shiny metallic gold texture with coin particles. Normal hatch roll weight: 4 out of 100. |
| Spirit Bloom | x2.5 | +1.5 | Green spiritual effect. Not obtainable through normal hatch rolls; obtained through the Sakura Incubator. |
| Bloom | x1.25 | +0.25 | Cherry blossom petal particles. Associated with the Sakura event rather than normal hatching. |
| Silver | x1.2 | +0.2 | Shiny silver appearance with metallic reflections. Normal hatch roll weight: 6 out of 100. |
How Multiple Mutation Multipliers Stack
Multiple mutations are additive by bonus, not multiplied directly. Begin at x1, subtract 1 from every listed mutation multiplier, and add those bonuses:
Combined Mutation Multiplier = 1 + Σ (each mutation multiplier − 1)
For example, Golden (x2.5) contributes +1.5, while Rainbow (x3.5) contributes +2.5. Together they produce 1 + 1.5 + 2.5 = x4.0—not x8.75.
| Mutation Combination | Calculation | Combined Multiplier |
|---|---|---|
| Silver + Golden | 1 + 0.2 + 1.5 | x2.7 |
| Bloom + Spirit Bloom | 1 + 0.25 + 1.5 | x2.75 |
| Golden + Rainbow | 1 + 1.5 + 2.5 | x4.0 |
| Fractured + Golden | 1 + 1.75 + 1.5 | x4.25 |
| Fractured + Rainbow | 1 + 1.75 + 2.5 | x5.25 |
| Scrambled + Parasite | 1 + 1.75 + 2.0 | x4.75 |
| Two x2.75 mutations | 1 + 1.75 + 1.75 | x4.5 |
| Fractured + Golden + Rainbow | 1 + 1.75 + 1.5 + 2.5 | x6.75 |
| Silver + Bloom + Golden | 1 + 0.2 + 0.25 + 1.5 | x2.95 |
| Scrambled + Fractured + Rainbow | 1 + 1.75 + 1.75 + 2.5 | x7.0 |
| Parasite + Golden + Rainbow | 1 + 2.0 + 1.5 + 2.5 | x7.0 |
| All eleven listed mutations | 1 + 0.2 + 0.25 + 1.5 + 1.5 + 1.75 + 1.75 + 1.75 + 1.75 + 1.85 + 2.0 + 2.5 | x17.6 |
Different combinations can reach the same total. These figures describe the mutation component only; the pet's base income and weight multiplier still affect its final Money / Sec.
🌸 Sakura Incubator Event Mutations (Spirit Bloom & Bloom)
Spirit Bloom and Bloom are event-exclusive mutations that can only be obtained through the Sakura Incubator during the Cherry Blossom event.
How to Get Sakura Incubator Mutations:
- Unlock Cherry Blossom Biome: Reach the required speed to open and enter the Cherry Blossom biome.
- Collect Sakura Crystals: Gather crystals scattered around the biome to fuel the incubator.
- Place Your Pet Inside: Select the target pet you want to mutate before adding charge.
- Charge to the Threshold:
- Lower Charge: Gives a chance at rolling the Bloom (x1.25) mutation.
- Full Charge: Guarantees the Spirit Bloom (x2.5) mutation.
⚠️ Important Maintenance Tip: Avoid Charge Decay
Charge decays over time if the incubator sits idle! Feed it crystals in a steady, continuous stream rather than holding back for one giant batch, or you risk losing your accumulated progress overnight.
📏 Creature Sizes & Stacking Multipliers
In Steal an Egg, a creature's Size (Weight Trait in kg) is completely independent of its Color Mutation. Size is rolled separately when the egg hatches, which is why you can get combinations like a Golden Giant or a Huge pet with no aura at all.
🧮 Stacking Formula: Combined Mutations + Size
Because size rolls are generally easier to get than ultra-rare color mutations, combining both yields massive income scaling:
Final Income = Base Income × Combined Mutation Multiplier × Weight/Size Multiplier
📊 Income Combination Examples ($100/s Base Rate)
❓ Frequently Asked Questions (FAQ)
What is the best mutation in Steal an Egg?
Among the mutations shown in the current list, Rainbow provides the highest income multiplier at x3.5, followed by Parasite at x3. Enchanted provides x2.85, while Fractured, Scrambled, Nitro, and Spectral each provide x2.75.
Do color mutations and pet sizes stack together?
Yes! Color multipliers and size multipliers multiply together with the pet's base rate to calculate final Cash per second ($/s).
Do multiple mutation multipliers multiply together?
No. Start at x1 and add only each mutation's bonus above x1. Golden plus Rainbow is therefore 1 + 1.5 + 2.5 = x4.0.
What is the multiplier with all eleven listed mutations?
Using the additive-bonus formula, Silver, Bloom, Spirit Bloom, Golden, Fractured, Scrambled, Nitro, Spectral, Enchanted, Parasite, and Rainbow combine to x17.6 before weight or size is applied.
Can I get Spirit Bloom from regular egg hatching?
No. Spirit Bloom is an event-exclusive mutation obtained only through the Sakura Incubator during the Cherry Blossom update.