What Are Sell Lemons Investors?
Alien Investors are the currency behind Sell Lemons powers and the % cash bonus that scales every Rebirth.
Each Alien Investor adds a stacking global cash bonus — +1% per investor by default, or +2% after the UFO Key and Good Samaritan Badge. That difference doubles the value of every future Rebirth.
Investors are also spent on the seven powers board (Manage, Run Faster, Stack Upgrades, Remote Buy, Expert Picker, Speed Up Time, Forever Purchase). Banking without a spend plan wastes septillion-scale progress.
Roughly one in four players earns the Out of this World badge for their first investor. Treat that unlock as the start of mid-game math, not the finish line.
Think of investors as both a passive cash engine and a spend currency: the % bonus pays while you idle, and the same count buys powers that cut walking and lock permanent buttons.
Alien Investors Unlock Walkthrough
Watch this Alien Investors unlock walkthrough first, then use the checklist and spend table below before you burn a bank on Remote Buy.
Investor Priorities at a Glance
Four Sell Lemons investor decisions that decide whether your bank snowballs or stalls.
Open the menu
Upgrade lemon factory / garage / floor buildings until the Alien Investors panel unlocks, then Rebirth at Joe.
UFO Key first
Grab Good Samaritan before mass Rebirth farming so every investor pays double cash %.
Forever Purchase
Lock 42× global cash when you earn a Forever Purchase token — best permanent investor-adjacent ROI.
Evolution wipe
Evolving clears the live investor count. Time altar clicks after a strong bonus bank.
How to Get Sell Lemons Investors
Unlock the investor system, land Joe’s UFO, then Rebirth on a loop. Cash toward ~77 sextillion is the usual arrival window.
Community unlock clips show factory / garage / floor upgrades revealing the Alien Investors menu before Joe appears. Keep buying those nodes while you Ascend early for multipliers.
When the UFO lands, talk to Joe the Alien to Rebirth. Free Rebirth grants +1% cash investment bonus per Rebirth and +1 Alien Investor toward the powers board. A paid Rebirth option can raise the per-Rebirth cash bonus if you choose to spend Robux.
- Upgrade lemon factory, garage, and related floor buildings until the investor menu appears.
- Push surface cash toward Sextillion — UFO arrival is commonly near ~77 sextillion.
- Rebirth at Joe (free) for +1 Alien Investor and stacking cash %.
- Optional paid Rebirth for a higher per-Rebirth cash bonus.
- Complete UFO Key before heavy farming if you want 2% per investor.
Investor Cash Bonus Table
Same investor count, different Sell Lemons cash output — UFO Key is the multiplier.
Per-investor cash bonus with and without Good Samaritan
| Setup | Bonus per investor | 100 investors | Notes |
|---|---|---|---|
| Default | +1% | +100% cash | After first Rebirth / Out of this World |
| UFO Key + Good Samaritan | +2% | +200% cash | Do before mass Rebirth loops |
| After Evolution | Bonus % kept | Count resets | Rebuild bank; powers may need re-check |
Spending Investors on Sell Lemons Powers
Open the green powers board at the top of the HUD. Spend order matters more than buying every power early.
Priority spend map for Alien Investors
| Power | Role | Spend hint |
|---|---|---|
| Forever Purchase | Lock one button forever | Prefer 42× global cash |
| Manage | Remote income UI | Strong early QoL |
| Run Faster | Map speed | Helps phone deals / buildings |
| Stack Upgrades | Upgrade stacking | Late scaling |
| Expert Picker | Pickup cash | Pair with map farming |
| Speed Up Time | Time accel | Stacks with Skip Time pass |
| Remote Buy | Buy without walking | ~1 septillion after ~E6, or 459 Robux |
Remote Buy is the most searched power, but it is a deep-endgame convenience buy. Do not dump your first septillion bank into Remote Buy before Forever Purchase planning and UFO Key.
Investor Spend Tips Board
Badge then bank
Get Out of this World, then UFO Key, then farm Rebirths. Flipping that order permanently taxes every investor.
Yellow button QoL
Once unlocked, Remote Buy uses the yellow control at the bottom of the screen — unlock after ~6 Evolutions if paying with investors.
Lifetime vs live
Portal unlocks care about lifetime investor totals; your live bank is what Evolution wipes.
No panic spends
Ignore random “max investors” flex clips. Follow Forever Purchase → QoL powers → Remote Buy.
Do You Lose Investors After Evolution?
Yes — Sell Lemons Evolution clears the live Alien Investor count. Plan the dump; do not treat it as deleting Rebirth history.
Cash-% bonuses from Rebirths you already completed remain. What vanishes is the spendable investor stack used for the next fruit and for re-buying powers that are not Forever-locked.
That is why players wait until Investor Bonus feels strong (often 200%+) before evolving. The 42× speed multi should repay the rebuild when UFO Key’s 2% is already online.
Double Investor Bonus with UFO Key
The Good Samaritan Badge (help the sewer stranger after collecting the UFO Key) permanently doubles investor cash bonus from 1% to 2%. Only about 1.8% of players earn it — that scarcity is why every investor guide says “do this before Rebirth spam.”
You need at least one Alien Investor before the UFO Key will spawn in the maze. Finish the Cosmic Cash Vine / Sewer Key clear in a separate session when levers feel sticky.
Related guides

Sell Lemons Codes
Active and expired codes — redeem steps and official sources.
Read guide →
Lemon Stand Upgrades
Juicer, Cup Stand, Automator costs and early buy order.
Read guide →
Sewer Guide
Sewer map walkthrough — maze, lever puzzle, Sewer Key, Cosmic Cash Vine.
Read guide →
Rebirth & Ascend Guide
Early Ascend, Joe Rebirth (~77 sextillion), and staircase Ascension.
Read guide →Unofficial Sell Lemons Wiki — not affiliated with BloxByte Games or Roblox Corporation. Verify stats in-game after patches.
