Use the cable-car and research-area route into the Deeper Underpass. Look across the ledges rather than staying at road level; the taxi encounter sits off the most direct transit line.
Where to find the Underpass taxi
Use the cable-car and research-area route into the Deeper Underpass. Look across the ledges rather than staying at road level; the taxi encounter sits off the most direct transit line.
Why players miss this taxi
The taxi is not on the first obvious road surface, and the deeper research route may still be locked by story progression.
How to confirm the right approach
If Recursions and Iterations has not opened the deeper cable-car path, leave this entry for later rather than searching the shallow Underpass.
Step-by-step route
- Progress far enough to use the Recursions and Iterations route into the deeper area.
- Follow the cable-car and research path, checking the side ledges.
- Reach the taxi, answer the phone, and enter the tunnel Threshold.
- Wait for the overhead lights to switch off before evaluating each cab.
Commonly reported puzzle
Blackout Puzzle: Ignore the normal-lit state and judge each taxi only during the blackout.
Use the blackout as a filter. Reported rounds include a cab that stays lit, one that becomes completely dark, and one whose roof sign flashes only while the tunnel is dark.
Only judge the taxi state during the blackout window. Lights seen while the tunnel is fully lit can be deliberate decoys.
How to confirm completion
Do not leave after one correct cab. The local Threshold runs for three rounds. Wait for the green traffic signal each time, finish the return sequence, and then mark this zone complete in the route log.
How this page was checked
Underpass route and puzzle details were compared across two independent launch-week walkthroughs. Official game identity and release facts are checked against Remedy Entertainment. Where puzzle-to-zone reports conflict, this guide labels the pairing as reported and tells players to follow the live visual clue.