Radioactive
Steal a Brainrot mutation × 8.5 — guide updated for April 2026.
Multiplier
× 8.5
Type
limited
About this mutation
Radioactive is a mutation with a ×8.5 multiplier in Steal a Brainrot. It is applied via Mutation Spinners — higher multipliers correlate with rarer rolls in the game's loot tables.
Popular brainrots to apply this mutation to
Frequently Asked Questions
▸What is the Radioactive mutation multiplier?
The Radioactive mutation multiplies a brainrot's base income by ×8.5.
▸How do you get the Radioactive mutation?
Mutations are applied via Mutation Spinners on any brainrot. Gold Lucky Blocks can also produce mutations, including Radioactive.