The Unknown: Entry, Probe Relays and Point 0
Finish the Oldest House story through The Hedron Link, then use Pope’s Research balloons and probe signals to create Gravity Wells. Complete all eight research groups before the final Point 0 interaction.
Quick answer
Finish the Oldest House story through The Hedron Link, then use Pope’s Research balloons and probe signals to create Gravity Wells. Complete all eight research groups before the final Point 0 interaction.
On this page
Get into the Unknown
Follow The House in Distress and the subsequent Hedron Link objective. The route includes altered gravity, the Main Test Chamber and the ascent through the fragmented building. Reach the rooftop elevator and emerge into the distorted region. Reach and Shift are traversal tools here; an early street jump is not an alternative story entrance.
Make the first crossing
- Reach the first research balloon and cut it down. Break open the dropped crate to release the probes.
- Pick up a probe and follow its beeping and minimap signal to the matching red placement circle.
- Place it and check for green feedback. If it stays wrong, move it to the matching site before carrying on.
- Complete the other probe placements. A Gravity Well appears when the group is solved. Reach it, land and use its launch/carry route toward the next island.
Track research groups, not individual antennas
There are eight balloon groups. Most use two probes, while the southern and second central groups use three and four respectively. Completing one group does not finish the whole quest. After the first crossing, activate the central Map Kit: later balloons and connecting routes become easier to identify.
| Progress marker | What it means |
|---|---|
| Balloon still in the sky | Its crate has not been released |
| Loose antenna or red feedback | That group is not fully placed |
| Gravity Well active | The group’s travel connection is usable |
| Eight groups complete | Look for the final Point 0 objective |
This is a signal-guided route, not a coordinate map of every probe. Use the active probe’s feedback to locate its exact landing spot. Do not take a probe count from one island as the requirement on every island.
Finish Point 0 instead of stopping at eight
When the central objective appears, travel to the southern Evac Building island and use its Gravity Well to approach the central sphere. Attach as you pass through it, using the action shown in your bindings, then interact inside. The final investigation closes Pope’s Research and awards the Resonant Token. An extra ability choice is a use for the Token; it is not an unlimited respec supply.
Return to the route you actually need
Use the revealed map and the Gravity Wells you have activated. For the northern Field Office and escort objective, follow the Unknown Resonant route. For a hidden shop on the opposite gravity face, use Pulse Fitness directions. Research progression, a boss kill and a shop puzzle are separate completion checks.
Before you leave
These checks are saved in this browser; they do not read your game save.
Sources and scope
Written walkthroughs compared November 3, 2026. The diagrams explain the operation order; no site playthrough or performance benchmark is claimed.