Signal Survey
Recover the survey lens from the third station, then carry it back to the surface. Collect repair vials and ration packs along the way.
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Arrows move. I opens inventory; Space closes it. Period waits one turn. Q drinks a vial; E eats a ration; choose its inventory letter. Use > or < on a lift. S saves and exits; Y confirms.
Silent edition. Save and exit before closing to keep progress. Continuing consumes that checkpoint; save again to keep further progress. Clearing browser site data removes saves.