Units
The more likely SUMMERUPD3 result. Confirm costs, drop rates, and unlocks in the live [🌗] Steal a Brainrot experience.
Player guide for the Roblox game [🌗] Steal a Brainrot: lock a base, buy and steal brainrots, rebirth through row 19, and read mutation multipliers.
Expired code SUMMERUPD3 is recorded as about a 75 percent chance of Rocketini Frostini.
| Fact | Value |
|---|---|
| Hub | Units |
Expired code SUMMERUPD3, listed around 75 percent.
The code is expired, so the odds no longer apply.
Lock your base, buy one brainrot from the red carpet so cash starts coming in, and steal only from a base whose lock has dropped. Open the rebirth panel before you reset so you can see the cash and the exact brainrots that rebirth will take.
The rebirth panel takes the required brainrots and most of your cash. Since Update 66 it no longer takes every brainrot in the base. Brainrots still walking to your base go back to the red carpet. Gear from earlier rebirths stays, and you gain that row's multiplier, cash bonus, extra lock time, and any new slot or gear.
A brainrot can have one mutation. Traits stack on top of it. The mutation article's worked numbers add the multipliers together, then multiply the base income. A $65M/s example becomes $81.25M/s with Gold (1.25x) and $715M/s with Cyber (11x).
Every code in the archive is recorded as expired or sold out. BESTBRAINROTEVER is not listed as active or expired because October 2026 roundups disagree about it. Redeem from the side-menu control in your own server and trust the in-game result.