The next major update for Steal a Brainrot is here and everything is about to glow green.
The Radioactive Mutation Update brings new mutations, hourly fishing, a full Brainrot trading system, new indexes, and brand new high rarity Brainrots.
If you want a quick, complete breakdown of everything coming in this update, this guide covers it all.
Before we jump in, here is the exact update time for India and the major regions.
Steal a Brainrot Radioactive Mutation Update Time
India (IST)
Start: Sunday November 16 at 1:30 AM
End: Friday November 21 at 10:30 PM
Timezone Table
A clean table for all major regions.
| Region | Start Time | End Time |
|---|---|---|
| India IST | Sun Nov 16 at 1:30 AM | Fri Nov 21 at 10:30 PM |
| Pacific Time PST | Sat Nov 15 at 12:00 PM | Fri Nov 21 at 9:00 AM |
| Eastern Time EST | Sat Nov 15 at 3:00 PM | Fri Nov 21 at 12:00 PM |
| United Kingdom GMT | Sat Nov 15 at 8:00 PM | Fri Nov 21 at 5:00 PM |
| Europe CET | Sat Nov 15 at 9:00 PM | Fri Nov 21 at 6:00 PM |
| Australia AEST | Sun Nov 16 at 7:00 AM | Sat Nov 22 at 4:00 AM |
| Dubai GST | Sat Nov 15 at 11:00 PM | Fri Nov 21 at 8:00 PM |
All Features in the Radioactive Mutation Update (Steal a Brainrot)
This update has three main pillars. Radiation, Trading, and Fishing. Here is everything included.
Radioactive Mutation
Brainrots are getting a full glow up. Literally.
The new radioactive mutation adds a green glowing effect to specific Brainrots.
This is a visual mutation with new particle effects, neon shaders, and a signature radioactive style.
Here is everything included in the mutation system:
Radioactive Mutation Features
• Brainrots receive a green radioactive mutation
• A new radioactive spin wheel appears in the update area
• The spin wheel includes a radioactive secret block
• New radioactive themed gears
• A full Radioactive Index that tracks every radioactive mutation you discover
You will want this index if you are pushing 100 percent completion.
Brainrot Trader
A brand new trader NPC arrives in this update and finally gives players a way to exchange old Brainrots for fresh ones.
Brainrot Trader Mechanics
• Trade your existing Brainrots for new ones
• The trader refreshes with new offers every two hours
• Trades can include rare and secret Brainrots
• Some rotations may include exclusive trade only creatures
This is a huge quality of life feature for collectors.
Fishing Event
This update introduces a fully new hourly event. You can now fish for Brainrots and aquatic themed rewards.
Fishing Event Details
• Occurs every hour automatically
• You can fish Brainrots with a chance to pull rare aquatic ones
• Better fishing rods increase your luck rate
• New Aquatic Index can be completed by collecting all water based Brainrots
This event is ideal if you are grinding for secret aquatic variants.
New Brainrots in the Radioactive Update
Three new Brainrots make their debut in this update.
New Brainrots Added
• Centrucci Nuclucci Mythic rarity
• Swag Soda Secret rarity
• Unknown Secret A third hidden Brainrot that will be revealed after the update goes live
Swag Soda will likely be extremely hard to obtain because secret Brainrots usually appear through spin wheels or low chance fishing drops.
Should You Play the Radioactive Mutation Update
Yes. This is one of the biggest Steal a Brainrot updates so far. Between the trader resets, hourly fishing, a new mutation style and three new Brainrots, you will have a ton to unlock.
If you enjoy collecting indexes, this update adds two brand new ones. If you enjoy hunting secrets or trying out luck based mechanics like fishing and spin wheels, the radioactive update is perfect.
Ankit kumar is a Digital Marketing Manager and a fan of the COD franchise and Roblox. Perfection is his forte, and the same can be seen in his work. He loves to invest his time in creating awesome content, doing SEO and discovering the latest games.