Phantom mutation: 12x income, how to get it
By multiplier it is number 3 of 15 mutations, where 1 is the highest.
Formula follows the wiki's worked examples. Not verified in game.
Phantom mutation facts
| Multiplier | 12x |
|---|---|
| Type | Event mutation (Limited on the wiki) |
| In game since | Jun 13, 2026 |
| Appears during | Phantom event |
| Event runs every | 30 minutes |
A brainrot carries one mutation at a time, and the wiki says collecting 75% (3 of 4) of the obtainable brainrots in one mutation unlocks a base skin.
Worked example with a $65M/s brainrot
| Setup | Multiplier | Income |
|---|---|---|
| No mutation | 1x | $65M/s |
| Phantom | 12x | $780M/s |
| Phantom + Fire | 17x | $1.105B/s |
| Phantom + Fire + Nyan | 22x | $1.43B/s |
The example brainrot is Ventoliero Pavonero, the one the wiki uses on its Mutations page. Multiplier = mutation + traits, income = base x multiplier. Fire and Nyan are 5x each.
Nearby mutations
All mutations and traits · Calculate with Phantom
Questions
What does the Phantom mutation do to income?
It sets the mutation part of the multiplier to 12x. For the wiki's $65M/s example brainrot that is $780M/s alone, $1.105B/s with Fire (5x) and $1.43B/s with Fire and Nyan. Traits are added to the mutation, not multiplied with it. This follows the wiki's examples and is not verified in game.
How do I get the Phantom mutation?
The wiki says there is a mild chance that it applies to a brainrot during the Phantom event. The event runs every 30 minutes.
When was the Phantom mutation added?
The wiki says it has been in the game since Jun 13, 2026.
Source: Steal a Brainrot Wiki: Mutations (rev 189024, Oct 14, 2026), Template:MutationText (rev 186393, Oct 3, 2026), Template:BrainrotFormula (rev 161404, Jul 9, 2026). Licence: CC BY-SA 3.0. Facts were restructured and the numbers recalculated here; the text is our own and no wiki images are used. Changes were made. Checked Oct 15, 2026. Not affiliated with Roblox Corporation or the developers of Steal a Brainrot.