Evidence boundary: route structures are reported from community pages and can change after game updates. Confirm final turns in-game before treating any step as verified.
disputed: Blue and Teal may refer to the same first lever across sources, but the naming mismatch remains a conflict until checked in-game.
Objective Selector
Sewer Key Route
Use this route when the goal is the hidden key and the gate that leads toward the Cosmic Cash Vine.
Mobile Steps
- Open the lever checklist before entering the maze.
- Complete only the Sewer Key sequence.
- Do not switch into the UFO route halfway through.
- Collect the Sewer Key before checking the gate.
- If the gate stays closed, reset the route state before guessing.
UFO Key Route
Use this route when the goal is the alternate key and the Good Samaritan badge path.
Mobile Steps
- Do not reuse a finished Sewer Key state.
- Follow the UFO sequence from a fresh route state.
- Confirm the key appears before leaving the maze.
- Return to the alien path after collecting the key.
- Talk to the alien only after the route opens.
Cosmic Cash Vine Route
Use this route only after the Sewer Key path. Reward value claims conflict across community pages.
Mobile Steps
- Finish the Sewer Key checklist first.
- Avoid switching to the UFO sequence.
- Use the key at the reported gate.
- Record your actual reward if you want to verify the payout.
- Do not publish a fixed payout from memory.
Reset Recovery
Wrong lever
Stop adding more inputs. Return to the main split or join a fresh server so the lever state is easier to reason about.
Door will not open
Recheck the route goal. A Sewer Key state and a UFO Key state are not the same route, even when both use similar colors.
UFO objective already done
Use a fresh server before starting the Sewer Key route if prior UFO progress left the puzzle in a confusing state.
Video Maze References
youtube_embed: sewer maze videos help with visual turns, but this page does not treat videos as verified map or reward evidence.
Full Sewer Key Maze Guide
Visual Sewer Key route reference. It is not verified route or reward proof.
Open video sourceVisual Maze Map Reference
Helps with map orientation, but the page keeps all route claims evidence-labeled.
Open video sourceSell Lemons Maze Guide UFO KEY & SEWER KEY
Cluster reference for both key routes. Do not use it as verified reward evidence.
Open video sourceHow To Get UFO Key In Sell Lemons
Supplemental visual route for the UFO objective inside the same sewer area.
Open video sourceRoute Cluster
FAQ
Why does the route split into three objectives?
Sewer Key, UFO Key, and Cosmic Cash Vine routes share the same underground area, but they do not use the same checklist state. Mixing them is the fastest way to lose the route.
Why are reward amounts not listed as final?
Community sources conflict on some reward details. This page keeps reward value claims disputed until a current in-game check confirms them.