Steal a BrainrotSigma Girl
Sigma Girl is a Legendary-tier character in Steal a Brainrot, depicted as the female counterpart to Sigma Boy, exuding strength and charisma with a feminine twist, embodying the wild essence of Italian brainrot meme culture.
Legendary brainrot generating $1.8K/second
Sigma Girl is crafted through the Craft Machine. Crafting time: 15m. Crafting cost: 340,000.
Identity & Availability
Quick Answers
What is Sigma Girl?
Sigma Girl is a Legendary brainrot in Steal a Brainrot through Craft Machine. It generates $1.8K/s and has a listed base cost of $340K.
How do you get Sigma Girl?
Current availability for Sigma Girl: Sigma Girl is crafted through the Craft Machine. Crafting time: 15m. Crafting cost: 340,000.
When was Sigma Girl added to Steal a Brainrot?
Sigma Girl has a recorded game-added date of September 21, 2025.
How to Obtain
Crafted using materials and resources obtained from the game world.
Required Materials:
All Crafts →Available by crafting in the Craft Machine using three Bambini Crostini and one Sigma Boy, with a crafting time of 15 minutes and a crafting cost of 340K. Can be obtained by trading in older Brainrots at the Brainrot Trader.
Steal from heavily defended bases; requires advanced speed boosts, strategic timing, and high-tier defensive items.
Gather three Bambini Crostini and one Sigma Boy, craft in the Craft Machine with 340K and 15 minutes, then claim; for stealing, employ advanced tactics with top-tier items. Can be obtained by trading in older Brainrots at the Brainrot Trader.
Mutation Income Calculator
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Time Period
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| Mutation | Mult | Income |
|---|---|---|
| Default | 1x | $6.4M |
| Gold | 1.25x | $8.1M |
| Diamond | 1.5x | $9.7M |
| Rainbow | 10x | $64.8M |
| Bloodrot | 2x | $12.9M |
| Celestial | 4x | $25.9M |
| Candy | 4x | $25.9M |
| Lava | 6x | $38.8M |
| Galaxy | 6x | $38.8M |
| YinYang | 7.5x | $48.6M |
| Radioactive | 8.5x | $55.0M |
| Cursed | 9x | $58.3M |
| Divine | 10x | $64.8M |
| Cyber | 11x | $71.2M |
| Phantom | 12x | $77.7M |
| Crystal | 13x | $84.2M |
Release Status
Released
None; confirmed as a published Legendary Brainrot character by developers, introduced in September 2025.
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