Control Resonant Astral Plane Breach Logs and Letters

The Physicist left a trail of tapes and mail behind him, and in Control Resonant you can collect 12 Astral Plane Breach files: eight of his logs, three letters, and a Bureau report. Eleven are in the Underpass, and all of them need Shift, while the last appears in the Oldest House once he’s beaten. The Control 2 fans imagined never had anything like the Astral Plane, and the Underpass map of The Spire is where the climb begins.

Control Resonant Astral Plane Breach Collectible guide location screenshot


Vlad Susanu traced every log back to its platform for Map Master, and the Control Resonant Archive maps by zone cover every other set. Ten of the twelve are on your way to the fight, so one careful run in, with time to search each platform, covers almost the whole set.


Who Wrote the Astral Plane Breach Collectibles


The eight audio logs are the Physicist recording his own thoughts: about work nobody else understands, a new sense of clarity, a neighbor interrupting him, his dreams and family, and finally whether love is real. The three letters show his life outside the work, from a creditor’s collections notice to a rejection from an Ithaca University professor and a note from someone named Howie.


Collect them on the way in, because by the time you reach the arena, the logs have shown you the man the Physicist used to be. The last document, Astral Plane Observations, turns to the Bureau’s view once the breach is dealt with, and the Physicist and the other Resonant fights explain the battle in between.


How to Reach the Astral Plane Breach Collectibles: Shift and The Spire


Shift’s wall-walking is the only way up The Spire, and Physicist’s Log #1 is on the roof beside the Spire fast travel door. Activate that door before heading in, since it’s the quickest way back to the Astral Plane later and one of the Underpass fast travel doors.


Clear the rooftop enemies and the way into the Astral Plane opens. Inside, three Astral Keys open three locked doors in sequence, and since the keys are unmarked, let the collectibles guide you: the Collections Letter and Log #3 are a few steps from the first key, and Log #6 is close to the second.


Astral Plane Breach Collectibles on the Side Paths


The trail to Log #5 is lined with fake Orientation Points, mimics that attack when you get close, so treat every one on that path with suspicion. The path toward Log #6 mixes four real Resource Crates with exploding ones, so check before you strike, and the Resource Crates in the Astral Plane mark the safe ones.


The same route also passes a Health Upgrade Point, in a crate halfway up a stone block east of the first Orientation Point. Pick it up while you’re there, since the Underpass Health Upgrade Points are some of the hardest to come back for once the Astral Plane is behind you.


Astral Plane Breach Collectibles in Route Order


Exploring for the keys takes you past Logs #3, #5, and #6 before Log #4, which waits behind the first locked door. Once you know that, the numbering stops looking like a gap, and you can simply follow the keys and pick up each log as it appears.


Past the second Orientation Point, three collectibles share one corridor: Letter From Howie, Log #7, and the Rejection Letter. That’s a quarter of the set in one place, so search the whole hallway before you head on toward the arena and the fight that unlocks the last two.


The Last Astral Plane Breach Collectibles After the Physicist


Physicist’s Log #8 drops in the arena once he’s beaten, so grab it before you leave. The Resonant route stays open if you step out early, and the win offers Spike or Astral Rebuke plus the recipe for the Golden Earrings, one of the Untapped Artifacts the Resonants pay out.


Astral Plane Observations only spawns after the fight, on the desk behind Pope in the Oldest House, which the Downtown map of Pope’s desk in the Oldest House places. Every file stays reachable after the credits, and the Underpass Accounts expedition logs and Underpass Exploration documents are the zone’s other two sets.

Name Details
Physicist's Log #1Underpass

Physicist's Log #1 is the first collectible in the Astral Plane Breach Set. It is an audio recording in which a Physicist discusses how nobody but him understands his work. The collectible is found on the roof of the Spire in the Underpass, in front of the Spire Fast Travel Door.

Physicist's Log #2Underpass

Physicist's Log #2 is the second collectible in the Astral Plane Breach set. It is an audio log in which the Physicist discusses his newfound sense of clarity. It is found in front of a bookshelf on the right side of the main path in the Astral Plane, past the first Orientation Point.

A Collections LetterUnderpass

A Collections Letter is a document in the Astral Plane Breach set and a collections letter from a creditor. It is found on the kitchen counter by the first Astral Key in the Astral Plane area.

Physicist's Log #3Underpass

Physicist's Log #3 is another audio log from the Astral Plane Breach set. In it, the Physicist discusses the practical challenges of his work but is interrupted by a neighbor. You'll find it by the TV, several steps away from the first Astral Key in the Astral Plane.

Physicist's Log #6Underpass

Physicist's Log #6 is another audio log in which the Physicist discusses extradimensional fauna's suitability for pet-like purposes. The log is part of the Astral Plane Breach set, and it is found on a table several steps away from the second Astral Key.


After finding the first Astral Plane Orientation Point, levitate towards the platforms in the distance (right side) and keep following the linear path with exploding Resource Crates.

Physicist's Log #5Underpass

Physicist's Log #5 is the sixth Astral Plane Breach set collectible. You'll find it in the Astral Plane. In the audio log, the Physicist discusses newfound challenges in navigating his apartment. After reaching the first Astral Plane Orientation Point, head south and follow the linear path with the fake Orientation Points (mimics). The log sits in front of a TV.

Physicist's Log #4Underpass

Physicist's Log #4 is also found in the Underpass Astral Plane area. Look for it on the ground after the first Astral Plane Locked Door, which you can open using one of the three available keys. In the audio log, the same Physicist discusses his dreams and his family.

Letter From HowieUnderpass

Letter From Howie is the eighth collectible in the Astral Plane Breach set. You'll find it on the wooden table past the second Astral Plane Orientation Point. Look for it on the left side of the corridor.

Physicist's Log #7Underpass

Physicist's Log #7 is the ninth collectible in the Astral Plane Breach set. You'll find it on the wooden table past the second Astral Plane Orientation Point. Look for it on the right side of the corridor. In this audio log, the Physicist discusses changes both in his immediate environment and his future standing.

Rejection LetterUnderpass

The 10th collectible in the Astral Plane Breach set is the Rejection Letter. You'll find it on the wooden table past the second Astral Plane Orientation Point. Look for it on the right side of the corridor. The letter comes from an Ithaca University professor.

Physicist's Log #8Underpass

Physicist's Log #8 is the 11th collectible in the Astral Plane Breach Set. You can find it on the floor after defeating The Physicist in the Underpass Astral Plane. In the audio log, the Physicist discusses love and concludes that it is real.

Astral Plane ObservationsDowntown

Astral Plane Observations is the final document in the Astral Plane Breach Set, and it can be found on the desk behind Pope in the Oldest House. It is an FBC report on the current state of the Astral Plane; however, it will spawn on the desk only after you defeat the Underpass Resonant or the Physicist.

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