Steal a Brainrot Mutations
Steal a Brainrot has 13 obtainable mutations and 1 scrapped. The current best is Cyber at 11× from the Cyber Event. Permanent mutations (Default, Gold 1.25×, Diamond 1.5×, Rainbow 10×) spawn during normal play; Limited mutations require active in-game events. A brainrot can carry only one mutation at a time.
Multipliers verified against Fandom
Multipliers below come from the Steal a Brainrot Fandom Mutations master page, which mirrors the in-game UI. Hand-curated rather than ETL'd (small, slow-changing dataset). When a new mutation event ships we manually re-verify against the in-game collection menu.
14 mutations listed · 13 currently obtainable · 1 scrapped · last verified May 3, 2026
Permanent mutations
Available during normal play — no event required. Listed in multiplier order.
Limited mutations
Tied to specific events that activate periodically. Sorted by multiplier (lowest to highest).
Scrapped (no longer obtainable)
Existing mutated brainrots retain the multiplier, but new copies cannot be obtained.
Frequently asked
What is the best mutation in Steal a Brainrot?
Cyber at 11× is the highest currently obtainable mutation. It comes from the Cyber Event.
How do mutations work in Steal a Brainrot?
Each brainrot can have at most one mutation applied. A mutation multiplies the brainrot's income-per-second by the mutation's multiplier. Permanent mutations (Default, Gold, Diamond, Rainbow) can spawn at any time; Limited mutations are tied to specific events that activate periodically.
How do I get mutations on my brainrots?
Permanent mutations like Gold (10% spawn rate) and Diamond (~20% spawn rate) appear randomly when you spawn brainrots in the row. Limited mutations require active events — Cyber Event for Cyber, Divine Event for Divine, and so on. Some events activate every 1/2 hours during their window.
What happened to the Disco mutation?
Disco was an early high-multiplier mutation (11×) that has been marked as scrapped on the Fandom wiki. Existing brainrots that have the Disco mutation retain the multiplier, but it's no longer obtainable from active events. Cyber (also 11×) is the current top obtainable equivalent.
Where does this list come from?
The Fandom Mutations master page at stealabrainrot.fandom.com — community editors mirror the in-game multipliers and event sources. We hand-curate this list rather than ETL it because the dataset is small (~14 entries) and changes quarterly. Last verified May 3, 2026.