Before you start
Platform: Steam PC. Stage: Lighthouse, with access to the Keeper. Route sources: August 25/27, 2026; their exact builds are unspecified. Rechecked 4 October 2026, not replayed by this site on v1.1.3. Keep the boss drop until the request is complete.
Unlock sequence
1. Complete the boat-key handoff
Defeat Spider Crab, collect its remains and return to the Keeper. Mobalytics names the drop meat; do not search for a shell solely because an older guide says so.
- Look for
- The requested item and the Keeper's response.
- Before moving on
- Confirm that you received the boat keys, not merely that the boss disappeared.
- If it does not match
- Check the held item and unfinished dialogue. Follow the boss walkthrough if the fight is not complete.
Matching handoff screenshot unavailable. No capture from our own gameplay or cleared-for-reuse image is included.
2. Check the Keeper's Radar offer
Inspect the Radar purchase separately from the key reward. Compare the displayed cost with your funds before buying.
- Look for
- A named Radar offer and the actual price in your game.
- Before moving on
- Confirm the purchase delivered the navigation item; a reduced balance alone is not enough.
- If it does not match
- Do not assume a boat-engine upgrade grants Radar. Record the offer, version and quest state if the item is absent.
Matching shop screenshot unavailable; the historical $10 price is not a current-build capture.
Success check
Check the two outcomes separately: boat keys received and Radar available. Then follow the destination supplied by the quest. Engine controls, mounting steps and current UI labels remain unverified here; use the game's visible prompt.
Sources: Andrea Shearon, PC Gamer (25 August) and Mobalytics-Oli (27 August). Public-reference route, not our own playtest. Images remain at their original sources because reproduction permission has not been established.
What the radar does
| Radar is for | Radar is not for |
|---|---|
| Reading or locating the next island coordinates after a quest handoff. | Finding every fish, leech, rare creature, or boss spawn automatically. |
| Confirming that the route has produced a destination. | Replacing the NPC dialogue or the item delivery that unlocks that destination. |
| Navigation between the current island and the next route stop. | Proving that a missing coordinate is a graphics or save failure before the quest state is checked. |
Boat keys and the engine interaction
The boat-key question is a progression question first: finish the relevant NPC handoff, take the key when the prompt appears, then inspect the boat interaction before assuming the engine is missing. The route guide uses the key and the next coordinate as separate checks, so receiving one does not prove that every navigation upgrade is already equipped.
If the radar does not work
- Return to the last quest NPC and verify the boss trophy was accepted.
- Check that you are using the boat or navigation interaction rather than looking for a fish-finder screen.
- Compare the current stop with the full island route and confirm the next handoff.
- If the item disappeared after death or a crash, use the lost-items and radar checklist.
- Do not overwrite the only save while testing a missing navigation item.
Radar and the island route
The first radar question is usually a progression question: did the game receive the Spider Crab handoff, and did the boat key or next coordinate appear? Later stops follow the same pattern. Defeat the boss, keep the distinctive drop, deliver it to the NPC, then use the new route information.