Fortunu and Cashuru: income, cost and where it came from
Formula follows the wiki's worked examples. Not verified in game.
By base income it is number 33 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 7.1 min with no mutation. The wiki names: Leprechaun Lucky Block.
Fortunu and Cashuru facts
| Rarity | Secret |
|---|---|
| Income per second | $130M/s |
| Cost | $55B |
| Payback time | 7.1 min |
| Rank among Secret | 33 / 338 |
| Released | Update 42, Mar 14, 2026 |
| Availability | unobtainable |
| Comes from | Leprechaun Lucky Block |
| Wiki notes | part of the St. Patrick's set |
How to get Fortunu and Cashuru
- Leprechaun Lucky Block: 0.1% chance, per the wiki
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.
Fortunu and Cashuru income with mutations
| Mutation | Multiplier | Income per second |
|---|---|---|
| Default | 1x | $130M/s |
| Gold | 1.25x | $162.5M/s |
| Diamond | 1.5x | $195M/s |
| Rainbow | 10x | $1.3B/s |
| Cyber | 11x | $1.43B/s |
| Eclipse | 14x | $1.82B/s |
| Eclipse + Fire + Nyan | 24x | $3.12B/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: Reinito Sleighito ($140M/s)
- Next lower income in Secret: Antonio ($125M/s)
Brainrot income list · Calculate with Fortunu and Cashuru · Traits and mutations
Questions
What are the chances of getting Fortunu and Cashuru?
The wiki gives 0.1% from Leprechaun Lucky Block. These are the wiki's figures, not measured here.
Why is Fortunu and Cashuru not obtainable?
Fortunu and Cashuru has a base income of $130M/s. The wiki marks it unobtainable. The wiki describes it as: part of the St. Patrick's set. It came in Update 42 on Mar 14, 2026.
Where does Fortunu and Cashuru come from?
For Fortunu and Cashuru, the wiki names: Leprechaun Lucky Block. It arrived in update 42 (Mar 14, 2026). The wiki marks it unobtainable.
Source: Steal a Brainrot Wiki: Fortunu and Cashuru (rev 185446, Oct 1, 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.