Which brainrot should you buy with your budget?
Formula follows the wiki's worked examples. Not verified in game.
Best income at each budget
Each row picks, from the 258 obtainable brainrots with a known price, the one with the highest income per second whose cost is at or under the budget. Ties go to the cheaper one. Payback is cost ÷ income per second.
| Budget | Affordable | Brainrot | Rarity | Income per second | Cost | Payback time |
|---|---|---|---|---|---|---|
| $100 | 1 | Noobini Pizzanini | Common | $1/s | $25 | 25 s |
| $1K | 5 | Talpa Di Fero | Common | $9/s | $1K | 1.9 min |
| $10K | 17 | Pinealotto Fruttarino | Rare | $75/s | $9.7K | 2.2 min |
| $100K | 31 | Mummio Rappitto | Epic | $325/s | $47.5K | 2.4 min |
| $1M | 48 | Bombombini Gusini | Mythic | $5K/s | $1M | 3.3 min |
| $10M | 68 | Matteo | Brainrot God | $50K/s | $10M | 3.3 min |
| $100M | 127 | Los Tortus | Secret | $500K/s | $100M | 3.3 min |
| $1B | 177 | La Grande Combinasion | Secret | $10M/s | $1B | 1.7 min |
| $10B | 224 | Garama and Madundung | Secret | $50M/s | $10B | 3.3 min |
| $100B | 244 | Burguro And Fryuro | Secret | $150M/s | $75B | 8.3 min |
| $1T | 258 | Spyder Elephant | OG | $1B/s | $1T | 16.7 min |
Every ten-fold step up in budget buys a different brainrot, so there is no band where extra money is wasted. Payback is rounded to the displayed unit.
Questions
How were the budget bands chosen?
Powers of ten, from $100 (the first power of ten at or above the cheapest price, $25) to $1T (at or above the dearest, $1T). Prices in the data span 11 such steps.
Is the highest income always the best buy?
Not always. This guide ranks by income per second only. If you want your money back sooner, the fastest-payback guide ranks the same 258 brainrots by cost ÷ income. The pick in a band often costs close to the whole budget, so you may have nothing left for anything else.
Do mutations change the pick?
Not the pick, only the income. A mutation multiplies income by a fixed amount (the site follows the wiki's examples: base × (mutation + traits), not verified in game), so the ranking by income and the budget you need stay the same. The tables use base income.
Related: Fastest payback · Income calculator · Brainrot income list
Source: Steal a Brainrot Wiki: Template:BrainrotFormula (rev 161404, Jul 9, 2026), Mutations (rev 189024, Oct 14, 2026), Template:MutationText (rev 186393, Oct 3, 2026), Module:Trait (rev 178695, Sep 5, 2026), Category:Listed Brainrots (Oct 15, 2026). Licence: CC BY-SA 3.0. Numbers were restructured and recalculated here; the text is our own and no wiki images are used. Changes were made. Not affiliated with Roblox Corporation or the developers of Steal a Brainrot.