Sigma Boy Value
LegendarySteal a Brainrot · August 2026 · updated
Sigma Boy is a Legendary-rarity brainrot in Steal a Brainrot and currently an entry-level brainrot, ranked #199 overall and #3 among Legendary brainrots. It generates $1K/s and carries a base trade value of about $325K, with moderate community demand (5/10). Its worth scales with mutations — a Phantom Sigma Boy is worth roughly $3.9M.
Sigma Boy value by mutation
| Mutation | Multiplier | Value |
|---|---|---|
| Normal | ×1 | $325K |
| Gold | ×1.25 | $406K |
| Diamond | ×1.5 | $488K |
| Lava | ×6 | $1.9M |
| Rainbow | ×10 | $3.3M |
| CyberApril 2026 debut | ×11 | $3.6M |
| PhantomSummer Update — highest multiplier in the game | ×12 | $3.9M |
How to get Sigma Boy
Sigma Boy appears on the conveyor belt during normal play. Buy it when it spawns, or trade for it — lower-rarity brainrots like this are the easiest to obtain.
Thinking of trading Sigma Boy? Check any offer with the WFL trade calculator or browse the full value list.
Related Legendary brainrots
FAQ
What is Sigma Boy worth in Steal a Brainrot?
Sigma Boy has a base trade value of about $325K and generates $1K/s. With a Phantom mutation (×12) its value rises to roughly $3.9M.
What rarity and tier is Sigma Boy?
Sigma Boy is a Legendary brainrot, which puts it in C-tier on our list. It ranks #199 overall and #3 among Legendary brainrots by value.
How do you get Sigma Boy?
Sigma Boy appears on the conveyor belt during normal play. Buy it when it spawns, or trade for it — lower-rarity brainrots like this are the easiest to obtain.
Is Sigma Boy a good trade?
Demand for Sigma Boy is currently 5/10. Drop it into the WFL trade calculator against any offer to see instantly whether the trade is a Win, Fair or Loss.