Update on November 3rd: Added all the newest mutations in Steal a Brainrot.
Mutations in Steal a Brainrot are a game-changer. Here’s the deal: Brainrots are the characters you can buy from the conveyor belt, put them in your base, and they will make money every second. Mutations are basically free upgrades that boost how much cash your Brainrots make, without making them cost more. Get the right mutation on an expensive Brainrot and you’re suddenly making bank. In this guide, I will list all available Mutations in Steal a Brainrot.
Table of Contents
What Are Mutations in Steal a Brainrot?
Just like mutations in Grow a Garden Roblox, these mutations appear during random live events that happen with every game update, making your Brainrots way more powerful. When there’s a new update, you’ll often see live events where admins activate special features like the rainbow machine that gives rainbow mutations to your Brainrots. You can also buy server luck to boost your chances of getting mutations when they appear on the conveyor belt.
All Mutations in Steal a Brainrot
Here are the 8 main mutations you can get right now in the game. They show up randomly on Brainrots, and some are way better than others:
| Mutations | Icon | Multiplier | Visual Effect |
|---|---|---|---|
| Gold |  | x1.25 | Yellow colored Brainrots |
| Diamond |  | x1.50 | Blue colored Brainrots |
| Candy/Bubblegum |  | x4 | Pink colored Brainrots |
| Lava |  | x6 | Red colored Brainrots |
| Glitch | TBA | x6 | Brainrots will have a glitch effect |
| Galaxy |  | x6 | Purple colored Brainrots |
| Yin Yang |  | x7.5 | Black and white colored Brainrots |
| Strawberry OP | TBA | x8 | Strawberry textured Brainrots |
| Rainbow |  | x10 | Rainbow effect on Brainrots |
- Gold: Common entry-level boost that provides a steady 25% extra income for newer players.
- Diamond: Solid 50% income boost that appears regularly and feels much better than Gold.
- Candy/Bubblegum: Great 4x multiplier that can turn mediocre Brainrots into serious cash machines.
- Lava: Powerful 6x income multiplier that’s one of the newest mutations in the game.
- Glitch: Obtained when Brainrots fall into holes, featuring glitchy visual effects.
- Galaxy: Exclusive to Space Events that spawn every 3 hours and last 15 minutes.
- Yin Yang: Exclusive to Yin Yang Event, where the brainrots will turn into monochromatic color.
- Strawberry: In a server, you need to have a Strawberry Elephant spawn. Once the Brainrot spawns, this event will be triggered.
- Rainbow: The ultimate dream mutation with a massive 10x multiplier, especially powerful on Secret Brainrots.
Legacy Mutations
These mutations used to be in the game, but you can’t get them anymore. You might see other players who still have them, though.
| Mutation | Icon | Multiplier |
|---|---|---|
| Celestial | TBA | Unknown |
| Bloodrot |  | 2x more money |
Nobody knows what Celestial mutations actually do since the devs never told us the number. Bloodmoon mutations double your money, which is decent but not as crazy as Candy or Rainbow.
The Index Collection System
The index system is how you keep track of all the brainrots you’ve collected and get permanent bonuses. Just click the index button in-game (on the left of your screen) to see everything you’ve collected, sorted by mutation type.
Finish any index and you get a permanent 0.5x money boost forever. So collecting all Gold brainrots gives you 0.5x more money, finishing Diamond gives another 0.5x, and it keeps going. These stack up, so completing multiple indexes can really boost how much you make.
You also get a colored base that matches each completed mutation. The gold index gives you a golden base, the diamond index gives you a diamond base, and so on. It’s a nice way to show off your progress to other players.
Mutations can multiply your money by crazy amounts and make those expensive Brainrots actually worth what you paid. Focus on playing during events, learn how to do the La Vacca ritual, and always hope for that perfect Rainbow mutation on your best units. Good luck!
