Sell Lemons Sewer Key & Cosmic Farmer Badge
The Sewer Key opens the Sewer Gate and leads to the Cosmic Farmer badge. Here’s the exact lever sequence — verified 2026-06-01.
Lever sequence
Enter the sewer through a manhole on the main street, then operate the levers in this exact order:
- Pull the BLUE lever
- Pull the RED lever
- Pull the GREEN lever
- Un-pull the RED lever
- Un-pull the BLUE lever
- Pull the PURPLE lever
- Pull the RED lever again
Now grab the Sewer Key and unlock the Sewer Gate.
Getting the Cosmic Farmer badge
Beyond the gate is the Cosmic Cash Vine. Harvest it to earn the Cosmic Farmer badge. You’ll need Cosmic Cash, which starts appearing around Ascend 50 from NPC Deals and Ascend rewards — don’t blow it on temporary boosts.
Lever puzzles can change with updates. This sequence was verified on 2026-06-01; if it stops working, switch servers to reset the levers and retry.
Frequently asked questions
Where is the sewer in Sell Lemons?
Enter through any manhole on the main street. The lever puzzle and the Sewer Gate are inside.
What do I need before getting the Cosmic Farmer badge?
You need Cosmic Cash, which starts appearing around Ascend 50 from NPC Deals and Ascend rewards. After opening the gate, harvest the Cosmic Cash Vine to earn the badge.
The levers won’t reset — what do I do?
If you already solved the UFO Key puzzle, hop to a fresh server so the levers reset, then follow the sequence from the start.