Steal an Egg Mutations: All Multipliers, Bloom & Sizes
Mutations seen in-game
| Mutation | Where it shows up |
|---|---|
| Golden | Common early — Golden Chicken, Golden Bear, Golden Ice Dragon all seen |
| Silver | Silver Tung Tung Sahur (Brainrot egg), Silver Bear |
| Rainbow | ”Rainbow super rare” eggs in Prehistoric/Cosmic; Eternal Rainbow Mosasaurus |
| Shiny | Cosmic and late-game hatches |
A mutated egg is usually visible in the nest before you grab it (the shell colour changes), so they are worth a detour when the route is safe. The developer does not publish multipliers — the table below lists what each major source reports. “Shiny” in footage is most likely the metallic reflection of the Silver aura; no source lists Shiny as a separate mutation.
All mutations and multipliers (three sources compared)
| Mutation | How to get it | Beebom / Eldorado / Sportskeeda | Fandom wiki | IGN (measured on cards) |
|---|---|---|---|---|
| Silver | Any hatch or the fuse machine (wiki roll weight 6/100) | ×1.25 | ×1.2 | +17% to +20% seen on Silver pets |
| Golden | Any hatch or the fuse machine (wiki 4/100) | ×2 | ×2.5 | not fixed |
| Rainbow | Any hatch or the fuse machine (wiki 1/100) | ×2.5 | ×3.5 | not fixed |
| Bloom | Sakura Incubator in Cherry Blossom, partial charge (Update 1) | ×1.5 | ×1.25 | — |
| Spirit Bloom (IGN calls it “Sakura Bloom”) | Sakura Incubator, full charge — the wiki says a full charge guarantees it, IGN describes it as a low chance | ×3 | ×2.5 | — |
| Parasite / Monstrous | Monster Chest from the Hungry Frog event (Update 2); Titan Temple monsters only, limited-time | — | ×3 | ”low chance” from a Monster Chest |
Which column is right? IGN measured a Silver T-Rex at +20% and a Silver King Snake at +17% against the index value — close to both 1.2× and 1.25× — and concluded the game does not use one fixed number, possibly because weight rounds the result. Treat the value-site figures as approximations and read the money-per-second on the card (pet list).
Sakura Incubator in brief (Fandom wiki + Eldorado, 22 Aug): it sits at the back of the Cherry Blossom biome and is unlocked by submitting an Epic Crane (consumed); you charge it with Sakura Crystals from the recurring Great Bloom event, place a pet inside, and the charge level decides Bloom versus Spirit Bloom. Charge decays if the machine sits idle.
Stacking (Fandom wiki formula): final income = base income × colour multiplier × size multiplier, so a Golden Giant or Rainbow Huge roll multiplies twice — which is why the same pet name can show wildly different cards.
Size and “Huge”
Every pet and egg has a size, displayed as a weight (kg). Normal rolls are the baseline; “huge” and “massive” rolls can be taller than the player and pay many times more — one late-game clip shows a Kraken “you can’t even see the top of” as the team’s second-best earner, and an Eternal Ice Dragon near 1B/s on a large roll. The official description lists Huge alongside the top rarities because it is that important.
Why this matters for your base
- A Huge or Rainbow Legendary can out-earn a small Secret — always read money per second (pet list).
- Keep duplicates of a pet you like: three copies go into the fuse machine.
- Give away small spares rather than deleting them (how to give pets).
Update 1 and Update 2
Update 1 (22 August) added the Cherry Blossom biome, the Sakura Incubator and the Bloom / Spirit Bloom mutations; Update 2 (29 August) added Titan Temple, the Robux-store Monster Egg with Mecha variants, and the limited Parasite / Monstrous mutation from Monster Chests. New mutations are added to the table above as sources confirm them — update log. Scripts advertising a “mutation selector” or “pet spawner” are exploits, not features.
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