How to Get Radioactive Mutation in Steal a Brainrot (Guide)

???? How to Get Radioactive Mutation in Steal a Brainrot (Full Guide)

By Anish | Updated: November 16, 2025, | TechBoltX

The Radioactive Mutation is one of the newest and most powerful additions to Steal a Brainrot. This glowing neon green mutation doesn’t just make your Brainrots look nuclear—it gives them a massive x8 income boost, making it one of the strongest multipliers in the entire game.

If you want the fastest, most reliable methods to unlock this mutation, this guide has everything you need.

☢️ What Is the Radioactive Mutation in Steal a Brainrot?

The Radioactive Mutation transforms your Brainrots into bright neon green nuclear variants, complete with a glowing radioactive aura. It includes:

• Nuclear neon green design
• x8 income multiplier (one of the highest in the game)
• Exclusive Radioactive Index to track your collection
• Event-only availability

This makes it a high-value mutation that both collectors and grinders will want immediately.

???? How to Get the Radioactive Mutation in Steal a Brainrot

There are three main methods to unlock this mutation in the November 2025 update.

✅ 1. Radioactive Mutation Event (Primary Method)

The easiest and most common way to get the mutation is by participating in the Radioactive Event.

During this event:

• The entire map glows neon green
• Giant nuclear towers appear
• Radiation hazard signs cover the area
• Conveyor belts start producing Radioactive Mutation drops

When you see the map glowing, the event is live. Head to the conveyor belts and collect every radioactive drop you can.

Pro tip:
Stay near the center reactor—mutation drops are more frequent there.

???? 2. Radioactive Speen Wheel (Luck-Based Method)

The Radioactive Spin Wheel appears during the event and rotates every few minutes.

Possible rewards include:

• ???? Radioactive Mutation
• ☢️ Radioactive Secret Block
• ???? Neon green radioactive gears
• ???? Rare boosts

This wheel is perfect for players who want to try their luck without grinding conveyor belts.

Recommended strategy:
Use AFK mode and return every wheel cycle when the wheel lights up neon green.

???? 3. Steal Radioactive Brainrots from Other Players

This method is fast, aggressive, and very effective once the event begins.

During the event:

• Many players quickly get the mutation
• Their bases glow neon green
• Their radioactive Brainrots can be stolen

Look for:

• ???? Bright green bases
• ???? Players distracted at the spin wheel
• ???? Brainrots glowing neon radioactive green

Sneak in, grab one, and leave before they notice.

???? Radioactive Index (Track Your Progress)

The mutation also unlocks a new Radioactive Index inside your collection menu.

It allows you to:

• View all Radioactive Brainrots
• Track which ones you’ve collected
• Identify missing variants
• Set completion goals

If you’re a collector, this feature is must-use.

???? Final Thoughts

If you want one of the strongest multipliers in Steal a Brainrot, the Radioactive Mutation is a must-have. Whether you prefer grinding the event, spinning the wheel, or stealing from other players, there are plenty of ways to secure your glowing nuclear Brainrots.

Stay ready—events like this don’t stay forever.

❓ FAQs

1. What is the Radioactive Mutation in Steal a Brainrot?

It’s a neon green mutation with a huge x8 income boost, available during the Radioactive Event.

2. How do I know the Radioactive Event has started?

The entire map turns neon green, nuclear towers appear, and radiation symbols show up everywhere.

3. Can I get the mutation without the event?

No, it is event-exclusive and only available during the Radioactive update.

4. How often does the Radioactive Spin Wheel appear?

It activates every few minutes during the event.

5. Can I steal the mutation from other players?

Yes, if a player has Radioactive Brainrots, you can steal them from their base.