Control Resonant Impermanence Threshold File Locations

Vlad Susanu read every one of these files on his way through the labs for Map Master, and the Control Resonant Archive and lab maps connect this set to the rest. Read the Coordinates before anything else, because once the other labs are on your map, the hunt for their hidden entrances turns into a straight route.

Where the Impermanence Threshold Collectibles Start: Platt in Central

Dr. Grant’s Voicemail opens the set, an urgent message from Dr. Titus Grant to Dr. Roland Milbeck, next to the terminal that starts Platt’s shutdown. You can reach the lab after beating the Deserter, through a tunnel from Central’s northwestern construction site, and entering it starts the Unsupervised Science side quest.

Shutting Platt down opens a locked room with two more files: Notes From Dr. Puchalski, on the practical uses of the technology, and Testing Facility Coordinates. The shutdown is a 60-second task moving charge between Power Cores with your weapon, so the Power Core Station basics are useful to know before you start.

Impermanence Threshold Files in the Other Testing Facilities

Four labs have one file each, and every one waits by or behind the locked door that the lab’s shutdown opens. Reade in Downtown, Pearl in the Evacuation Zone, Broadway in the West Incursion Zone, and Vesey in The Park each give up their document as soon as you finish the puzzle inside.

The puzzles are the real requirement. Three labs ask you to turn Thirst Stations into soda dispensers, and three use the Power Core balance task, and the Testing Facility shutdown puzzles walk through each one. Finding the entrances is harder, which is exactly why the Coordinates file matters.

The Impermanence Threshold Story, Lab by Lab

Read in order, the files follow a team coming apart. Dr. Klaus Roth lays out his ambitions in Vesey, which the Park map of the Vesey lab places, and Dr. Janson admits how little anyone understands the Threshold’s forces in Broadway, which the West Incursion Zone map of the Broadway lab marks.

Doubt sets in from there. Technician Emma Washland questions the whole experiment in Pearl, and the Evacuation Zone map of the Pearl lab places her notes, while the Downtown map of the Reade lab has a cardiologist’s warning about Milbeck’s health. Dr. Grant’s own notes then show him deciding to end the experiment.

Dr. Grant’s Final Report: The Last Impermanence Threshold File

The Unknown’s lab, Dutch, has the last two files. Dr. Grant’s notes are in the room its shutdown opens, and his Final Report is at the end of the tunnel beyond, beside his body, once all six labs are shut down. The Unknown map of the Dutch lab places the entrance to that last walk.

The tunnel leads into the Threshold itself, and a wrong turn changes Dylan’s form, so stay on the main path. Reaching the report completes Unsupervised Science and its six labs, one of the three quests behind the Threshold Researcher trophy requirement, alongside Crossing the Threshold and The Last Taxi.

Impermanence Threshold Files by Zone and What to Read Next

Central has three, the Unknown two, and Downtown, the Evacuation Zone, the West Incursion Zone, and The Park one each. The Voicemail is the only file you can read before a shutdown, and the Final Report is the only one that needs every lab cleared, so the rest come in whatever order you tackle the labs.

Nothing in the set locks out, since every lab stays open after the credits and each file you’ve read stays in the Archive. For more of the Bureau’s Threshold work in Central, the Dig Site Threshold expedition files follow a failed trip into Threshold Site 7-B.