Gym Bros: income, cost and where it came from
Formula follows the wiki's worked examples. Not verified in game.
By base income it is number 101 of 338 Secret brainrots with a stated income on the wiki, where 1 is the highest and ties share a rank. It pays for itself in 2.9 min with no mutation. The wiki names: Cyber Craft Machine.
Gym Bros facts
| Rarity | Secret |
|---|---|
| Income per second | $42.5M/s |
| Cost | $7.5B |
| Payback time | 2.9 min |
| Rank among Secret | 101 / 338 |
| Released | Update 47, Apr 18, 2026 |
| Availability | unobtainable |
| Comes from | Cyber Craft Machine |
| Wiki notes | only comes from the Cyber Craft Machine |
How to get Gym Bros
Cyber Craft Machine
- 1x Odin Din Din Dun
- 1x Fragola La La La
- 1x Swag Soda
These are the ways the wiki lists. Some of them are developer-run events or limited stock, so a listed way is not always open.
Gym Bros income with mutations
| Mutation | Multiplier | Income per second |
|---|---|---|
| Default | 1x | $42.5M/s |
| Gold | 1.25x | $53.125M/s |
| Diamond | 1.5x | $63.75M/s |
| Rainbow | 10x | $425M/s |
| Cyber | 11x | $467.5M/s |
| Eclipse | 14x | $595M/s |
| Eclipse + Fire + Nyan | 24x | $1.02B/s |
Multiplier = mutation + traits, income = base x multiplier. Fire and Nyan are 5x each. 15 mutations exist; the table shows the main ones.
Nearby brainrots
- Next higher income in Secret: Garama and Madundung ($50M/s)
- Next lower income in Secret: La Lucky Grande ($40M/s)
- Also only from the Cyber Craft Machine: Camera Ramena, Digi Narwhal, Kalika Bros, Los Chillis
Brainrot income list · Calculate with Gym Bros · Traits and mutations
Questions
What do I need to craft Gym Bros?
Cyber Craft Machine: 1x Odin Din Din Dun, 1x Fragola La La La, 1x Swag Soda.
Why is Gym Bros not obtainable?
Gym Bros has a base income of $42.5M/s. The wiki marks it unobtainable. The wiki describes it as: only comes from the Cyber Craft Machine. It came in Update 47 on Apr 18, 2026.
Where does Gym Bros come from?
For Gym Bros, the wiki names: Cyber Craft Machine. It arrived in update 47 (Apr 18, 2026). The wiki marks it unobtainable.
Source: Steal a Brainrot Wiki: Gym Bros (rev 181678, Sep 17, 2026), Update Log (rev 188265, Oct 11, 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.