Steal a Brainrot
4th Bros
4th Bros is a Secret paired Independence-style brainrot from the early Update 56 live arrivals. It costs 800M, generates 3.75M/s, and is already unobtainable. The paired patriotic design makes it the lower-cost short-window collectible in the July set.
Secret brainrot generating $3.7M/second
4th Bros is a Secret early Update 56 brainrot from a short live window and is currently unobtainable.
Identity & Availability
Quick Answers
What is 4th Bros?
4th Bros is a Secret brainrot in Steal a Brainrot through Themed Brainrots. It generates $3.8M/s and has a listed base cost of $800M.
How do you get 4th Bros?
Current availability for 4th Bros: 4th Bros is a Secret early Update 56 brainrot from a short live window and is currently unobtainable.
When was 4th Bros added to Steal a Brainrot?
4th Bros has a recorded game-added date of July 4, 2026.
Explore This Family
Follow the strongest internal paths around this brainrot: event lineups, route collections, and composite relationships.
Visual Structure
Prototype
Structured prototype tags extracted from the brainrot's identity and visual design.
Composition
Source art and name indicate two patriotic characters; canonical component ids are not separately established.
Collection Tip: This character contains 2 entities. Collect 4th Bros to boost your progress!
How to Obtain
Special themed brainrots from event activities.
Check whether Independence-style admin-abuse activity returns before planning a purchase route.
Steal 4th Bros from players who obtained it while it was available.
Treat current copies as a short-window Secret because the live page now marks the route unobtainable.
Mutation Income Calculator
View all mutations at hourly rates
| Mutation | Mult | Income |
|---|---|---|
| Default | 1x | $13.5B |
| Gold | 1.25x | $16.8B |
| Diamond | 1.5x | $20.2B |
| Rainbow | 10x | $135.0B |
| Bloodrot | 2x | $27.0B |
| Celestial | 4x | $54.0B |
| Candy | 4x | $54.0B |
| Lava | 6x | $81.0B |
| Galaxy | 6x | $81.0B |
| YinYang | 7.5x | $101.2B |
| Radioactive | 8.5x | $114.7B |
| Cursed | 9x | $121.5B |
| Divine | 10x | $135.0B |
| Cyber | 11x | $148.5B |
| Phantom | 12x | $162.0B |
Release Status
Released
Released in the early Update 56 live arrivals, but the current route is no longer active.
Brainrot Income Calculator
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Live Result
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