This is a currently documented Brainrots list, not a claim that every live entry is complete. Public sources show different totals after frequent updates, and September’s World 2/Cosmic changes made older lists stale. Use the names below as a lookup starting point, then confirm rarity, base income, world, mutation, and availability in the in-game Index before making a plot or trade decision.
Known Brainrot Dex
How to use this list
Search the live Index for the exact name before assuming the spelling, rarity, or zone remains correct. Several community pages use aliases or small spelling differences. The Index should also reveal whether an entry is undiscovered, archived, currently obtainable, or attached to a different world.
Do not compare income from two pages without checking whether one includes mutation or unit upgrades. Record base income separately from effective income. If the unit card shows a mutation, multiply only by the live value shown for that mutation and keep any other upgrade in a separate field.
Why the full count is disputed
Public pages have advertised different totals, and those counts were captured at different update points. World 2 reportedly added Cosmic content and more Brainrots on September 12, while earlier events left limited units in player inventories. A list can therefore be accurate for its check date and still be incomplete today.
The correct way to extend a Dex is to add a row after the live Index confirms the name and fields. Do not infer a missing rarity from the unit’s color or copy a total from a search snippet. “Currently documented” is more honest and more useful than an inflated complete-list claim.
Compare a new roll with your plot
First secure the reward. Then compare its base income with the weakest placed unit, note the mutation, and check whether the new unit is limited or difficult to replace. A low base value with a powerful mutation can beat a higher-rarity plain unit. A limited collectible may justify a protected slot even if it is not the top earner.
If the plot is full, do not delete during the return. Reach safety, lock valuable units, and calculate the change. The Tier List provides a goal-based ranking method, while Mutations separates regular and event modifiers.
Build your own reliable tracker
For each owned Brainrot, record:
- Exact name from the current unit or Index panel.
- Rarity and world/zone, if the game displays them.
- Base income and unit used by the UI.
- Mutation name and current displayed multiplier.
- Upgrade level or other personal investment.
- Current acquisition status: normal, event, machine, trade, or unknown.
- Last checked date and server build context.
Leave an unsupported field blank. Guessing a value makes the rest of the tracker harder to trust. Recheck the highest earners and limited units after updates before using the sheet for trades.
Availability versus ownership
An ended event can make a Brainrot unobtainable while existing copies remain on plots and in trades. Mark that unit “archived or trade-only” only after the current Index or event UI supports it. Do not equate absence from a current roll pool with deletion from the game.
Likewise, a World 2 entry may require access to that world for normal acquisition but still appear through a trade. The World 2 guide explains the reported September transition and which parts still need live confirmation.
Sources and confidence
The existence and economic role of Brainrots are Official. Individual names and reported rarity fields above are Community reported or corroborated from TechWiser, Bloxodes, the Weather Machine guide, and the update tracker, checked September 17, 2026. Income, complete count, exact rarity, zone, and current availability require the live Index.