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Buy Roblox Steal a Brainrot Mutations

Every Roblox Steal a Brainrot mutation in one index, Gold to Divine, with the income modifier each one adds in game.

A mutation in Roblox Steal a Brainrot is a permanent finish on a unit that raises what it earns. The game's own formula is additive: a unit's rate is its base generation multiplied by one plus the mutation modifier plus every trait modifier on it. This page indexes all nine mutation shelves we run, from Gold at the bottom to Divine at the top.

Stock check: every Mutations listing on this page is sold out right now, so none of them can be bought today. The list stays up so you can see what we carry and what it costs, every listing below takes a one-email restock alert on its own page, and restocks are announced in our Discord.

Every Mutations listing on PetMart

How these are delivered

Every mutated unit on this index is handed over in an in-game trade. A private Discord ticket is opened for your order, you give us the Roblox username, and a PetMart staff member sends you the trade to accept inside Steal a Brainrot. The mutation is visible on the unit in the trade window, so you can confirm you are getting the Rainbow and not the Gold before you press accept. We never ask for your Roblox password and you never hand over your account. The finished trade is photographed and the photo lives on your order page.

The mutation ladder

Reading the game's own modifiers: Gold adds 0.25 to the income modifier (a 1.25x rate), Diamond 0.5, Candy 3, Galaxy 6, Yin Yang 6.5, Radioactive 7.5, Cursed 8, and Rainbow and Divine 9 apiece — a 10x rate. The ladder does not stop there in game; those are the nine we stock as their own shelves.

Mutations against traits

A unit carries one mutation but can carry several traits, and both go into the same parenthesis in the formula. That is why a Gold unit with four good traits can out-earn a bare Cursed one, and why the mutation alone never tells you the rate.

Mutations by type

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