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There are six Underpass Fast Travel Doors in Control Resonant: Sinkhole, The Spire, Fault, Halfway Trail, Research Stations, and Deepest Underpass. The route guide’s sequence is Sinkhole → The Spire → Fault, then back to The Spire → Halfway Trail → Research Stations → Deepest Underpass. Interact with each door to make it available; travel is between unlocked doors, not from anywhere on the map.
Requirements and how Underpass fast travel works
PowerPyx reports that Fast Travel Doors appear on the map when you approach them and become permanently available after you interact with them. Once available, they let you travel from one door to another. The route guide says the feature becomes usable during the main quest Welcome to Manhattan, so complete that quest before depending on door travel as a shortcut. PowerPyx’s Fast Travel Doors guide and the Underpass door route guide describe these mechanics.
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Underpass itself is reached during Recursions and Iterations, according to PowerPyx’s Underpass entry guide. A separate quest, Underpass Fault, has an additional traversal requirement: an unofficial progression guide says it requires the Reach ability, obtained through Subway Fault at Railyard Street Station in the Evacuation Zone. That quest requirement does not apply to the entire six-door list. The Fault fast-travel door at Tubes Island is a location, not the Underpass Fault quest. The progression guide also identifies Underpass Fault as a gate for The House in Distress.
All six Underpass doors in route order
The route below follows the connected path in the guide; it is not a set of six separate unlock puzzles. Its directions are guide-reported rather than independently tested.
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- STEP INTO A WARPED REALITY: Explore multiple areas of a ravaged Manhattan in an expansive, unfamiliar, and exciting world. Traverse perception-bending locations and grapple with gravity anomalies that distort the vertical and horizontal plane, adding additional dimensions to puzzles and new tactical decisions to combat. Meet faces old and new on a path fraught with risk but rich in opportunity as the cityscape is reshaped and reality is redefined by a godlike force.
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- THE FIGHT SHIFTS. YOUR WEAPON SHIFTS WITH IT: Meet constantly evolving threats head-on, utilising the environment, deploying elemental abilities and using the raw force Dylan’s shapeshifting melee weapon, the Aberrant. Wield the Aberrant in its many deadly forms. Deliver bone-crunching blows with a two-handed hammer and flow seamlessly into the swift precision of dual-wielded blades as this paranatural weapon morphs on demand to meet each new challenge.
- SHARED LEGACY. NEW THREAT: FBC Director Jesse Faden's lockdown is no longer holding. A paranatural catastrophe has spilled beyond the Oldest House and onto the streets of Manhattan, and the Bureau's grip on containment is failing. Jesse Faden walked into the Oldest House to confront the threat within. Now Dylan must walk out of it to contain the threat beyond.
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Sinkhole
Start beside the Sinkhole door in the courtyard. Face the open stairwell pit, descend through the lit passage and stairs, and continue into the cavern of suspended concrete blocks.
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The Spire
From the cavern viewpoint, cross the suspended platforms and move through the interior rooms. Do not try to reach the door by crossing directly from the initial viewpoint: follow the platforms and rooms, climb through the stacked blocks, and take the rooftop route to the red-carpeted door.
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- Collect and Customize – Gather materials while exploring the station to unlock upgrades, build out a diverse arsenal of weapons, obtain new outfits, and more. Once you’re ready, use the new gear in battle and take on even greater challenges!
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Fault at Tubes Island
From The Spire, cross the concrete pillars toward Tubes Island and the structure with exposed orange pipes. The Fault door sits on an elevated circular platform covered in red carpet. This is the Fault fast-travel location, distinct from the Underpass Fault quest.
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Return to The Spire
Use the Fast Travel menu to select The Spire, or backtrack across the platforms. The guide relies on door travel for this return, so interact with The Spire first and make sure door travel is available before counting on the shortcut.
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Halfway Trail
From The Spire, head south across the concrete pillars. Climb the wall using floating blocks and ledges, then enter the red-carpeted interior passage. The Halfway Trail door is on the rooftop.
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Research Stations
From Halfway Trail, turn toward the distant opening and climb the orange-trimmed structure. Continue through the rooms and offices where gravity shifts until you reach the cable-car station. Climb above the car to find the Research Stations door on the rooftop.
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- Use darkness and cover to avoid being overwhelmed by the ship's deadly new inhabitants
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Deepest Underpass
At the cable-car station, call the car with the yellow button, board it, operate its lever, and cross the chasm. Continue through the mossy cavern and the office-and-duct route. Pass through the upper gravity-shifting rooms to reach the raised platform with the Deepest Underpass door. The guide notes that story progress can also bring you to this final door if the cable-car route is unavailable.
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Route checkpoints
| Order | Door | Landmark or route cue | Key navigation note |
|---|---|---|---|
| 1 | Sinkhole | Courtyard stairwell and suspended-block cavern | Descend through the lit passage. |
| 2 | The Spire | Suspended platforms, stacked blocks, rooftop | Follow the rooms and platform route rather than crossing directly from the cavern viewpoint. |
| 3 | Fault | Tubes Island; exposed orange pipes | Look for the elevated circular red-carpet platform. |
| 4 | The Spire (return) | Fast Travel menu or backtrack | Return here to continue toward Halfway Trail. |
| 5 | Halfway Trail | South of The Spire; floating blocks and rooftop | Climb the wall and pass through the red-carpeted interior. |
| 6 | Research Stations | Orange-trimmed structure and cable-car station | Climb above the car to the rooftop door. |
| 7 | Deepest Underpass | Cable-car crossing, mossy cavern, upper rooms | Cross the chasm and reach the raised platform. |
The checkpoint table shows the route’s return to The Spire as a navigation step; it is not a seventh unique door. For the underlying walkthrough, see Nerd’sChalk’s Underpass route guide, which credits its screenshots to a YouTube game-guides walkthrough. PowerPyx also lists the six door names and the door-to-door travel rule.
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- Adventure-style inventory puzzles. Light platforming and combat sections
- Original soundtrack by micAmic and guests. Chess - Solve classic adventure-style inventory puzzles.
- Soundscapes From the Void - Original soundtrack by mimic and guests. Branching dialogues and decisions that shape how the story plays out
- Hands On the Wheel - Play through light platforming and combat sections. Mind Your Tongue - Experience branching dialogues and make decisions that shape how the story plays out.
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