Mutations increase the amount of money your brainrots generate. Each mutation has its own multiplier that stacks with other bonuses. This guide covers all available mutations and strategies for maximizing their potential.
These are the main mutations that can be obtained regularly. Only one primary mutation can be active at a time.
Increases earnings by 25%. The most common primary mutation that can be obtained from basic mutation rolls.
Increases earnings by 50%. More rare than Gold mutation but provides a better bonus.
Massive 10x earnings boost. Very rare to obtain but can dramatically increase your earnings.
4x earnings boost. Available during special holiday events and provides excellent value.
These mutations can stack with primary mutations and usually appear during special events. You can have one secondary mutation active at a time.
2x earnings boost. Halloween event mutation that provides a solid bonus during October.
3x earnings boost. Cinco de Mayo event mutation that appears around May 5th.
4x earnings boost. Dance party event mutation that appears during music-themed events.
5x earnings boost. Music event mutation that provides one of the best secondary bonuses.
6x earnings boost. Internet culture event mutation that's extremely rare but powerful.
6x earnings boost. New Year's event mutation that appears around January 1st.
Primary and secondary mutations stack multiplicatively with each other and with other bonuses like server luck and rebirth levels.
| Primary Mutation | Secondary Mutation | Total Multiplier | With 5x Luck |
|---|---|---|---|
| Gold (×1.25) | Bloodrot (×2) | ×2.5 | ×12.5 |
| Diamond (×1.5) | Tacos (×3) | ×4.5 | ×22.5 |
| Rainbow (×10) | Nyancat (×6) | ×60 | ×300 |
| Candy (×4) | Firework (×6) | ×24 | ×120 |
Pro Tip: The best possible combination is Rainbow (×10) + Nyancat/Firework (×6) with 5x server luck, giving you a ×300 multiplier before other bonuses!
Mutations can be obtained through mutation rolls (using in-game currency), special events, or as rare drops from certain activities. Primary mutations are more common than secondary ones.
You can have one primary and one secondary mutation active at the same time. They will stack multiplicatively for the total bonus.
Yes! Mutations multiply your base earnings first, then rebirth bonuses and other multipliers are applied. This makes them extremely powerful in late game.
Some event mutations may appear in special mutation rolls after their event ends, but they're much rarer. It's best to get them during their events.
Any mutation helps, but Gold + Bloodrot is a good early combination that's relatively easy to obtain and provides ×2.5 multiplier.
Active mutations are shown in your character's info panel. You can also see their effects in the earnings breakdown in the calculator.