Rarity is a label, income is the stat
The rarity ladder used across the game's references is:
Common, Rare, Epic, Legendary, Mythic, Brainrot God, Secret, OG.
Admin or seasonal labels such as Taco, Spooky, and Festive also appear. Rarity is about how the game files tag a unit and how often that family shows up. It is a weak proxy for trade value, because Secret income alone is published from roughly $315K/s to $425M/s.
| Rarity | Published cost band | Published income band | Spawn note that repeats |
|---|---|---|---|
| Common | $25–$1.7K | $1/s–$14/s | About 55% of carpet spawns in one rarities article |
| Rare | $2K–$9.7K | $15/s–$75/s | Frequent, despite the name |
| Epic | $10K–$47.5K | $75/s–$325/s | Uncommon |
| Legendary | $50K–$347.5K | $300/s–$1.9K/s | At least every 5 minutes |
| Mythic | about $350K–$6.2M | about $2K/s–$18.7K/s | At least every 15 minutes |
| Brainrot God | about $5M–$79M | about $17.5K/s–$320K/s | No guaranteed timer in these tables |
| Secret | about $50M–$425B | about $300K/s–$425M/s | Events, rituals, machines, or very rare carpet hits |
| OG | about $450B and up | about $450M/s–$1B/s in the rarities article | Effectively not a normal carpet plan |
Bands overlap because different pages were updated on different days. A unit inside the band can sit at either edge.
OG names from the rarities article
That article names Strawberry Elephant, Meowl, Headless Horseman, John Pork, Skibidi Toilet, and Spyder Elephant. Spyder Elephant is tied to the Spyder Chain being in stock. The same paragraph mentions a Strawberry variant at $1B/s and $1T, which is easy to misread as Spyder Elephant's stat. Those two figures are not copied onto Spyder Elephant here.
Another July 2026 count list uses different income figures for some of the same OG names, and it marks Headless Horseman as no longer obtainable. Hold an OG page loosely and read the card.
Index skins
Gold, Diamond, and Rainbow base skins are described as Index rewards around a 75% collection of that mutation, with a reported 0.5× base bonus. Seasonal mutations can use a different target. The Index bar in game is the assignment.
What this catalog is not
There are far more than the Brainrots filed on this site. Public wikis list well over a thousand pages. Conveyor prices also move. Use these entries for rebirth names, rarity bands, and a few stats that more than one page repeats. For anything else, the card in your server beats a spreadsheet.