Overview

Welcome to the Spire of Completion’s 100% achievement guide for Kriophobia, a survival horror game featuring 42 achievements.
◈ Difficulty:
4/10
◈ Time to 100%:
~15 hours
◈ Missable Achievements:
◈ Required Playthroughs:
3
◈ Manual Saves:
Yes
◈ Skippable Cutscenes:
No
◈ Chapter/Level Select:
No
◈ Save File Location:
AppData ⋗︎ LocalLow ⋗︎ Fira Soft ⋗︎ Kriophobia
This guide is currently in progress and will be updated regularly.
Roadmap
First Playthrough (8 hours)
- Play on Cold difficulty.
- Find all 119 collectibles and kill 25 Bauks and 50 Cocoons.
- Unlock both missable achievements at the Zhokhov Station.
- Give three Hand Warmers to Mikhail in the Locker Room (Bunker).
- Make a manual save before the Matryoshka boss in the Auditorium.
- Unlock all main endings using the save.
Second Playthrough (4 hours)
- Play on Hypothermia difficulty.
- Clean up any remaining miscellaneous achievements.
Third Playthrough (3 hours)
- Play on Absolute Zero difficulty.
- Complete the game within 3 hours.
Story Achievements

Snowed under
Sink into the snow to the unknown

Severed once more
Descend to an even lower hope

To the core
Fall down into the innards of this place

Sundering
Remove the rotten pieces
⋗︎ Endings

Predilection
Leave with Mikhail. The past comes after or not at all
At the beginning of the game, give three Hand Warmers to Mikhail in the Locker Room (Bunker), before bringing the Medical Saw to Ivan in the Generator Room. You can find Hand Warmers:
- in the Male Dormitory,
- under the ice block in the Construction Corridor,
- in the Guard Room by the Main Entrance,
- near the power panel in the Generator Room,
- on the cable wheel and the walkway in the Storage Room, and
- in the Morgue.
After defeating the Matryoshka in the Auditorium, take the elevator to the Laboratories and open the vault door. During the cutscene, kill Natasha and tell Tatyana that you need to find Mikhail first, then enter the Private Laboratory to find him.


Promise
Leave with Tatyana. A late promise is kept
After defeating the Matryoshka in the Auditorium, take the elevator to the Laboratories and open the vault door. During the cutscene, kill Natasha, then tell Tatyana that you are here for her.


Atonement
Natasha leaves alone. A graveyard with you among them
After defeating the Matryoshka in the Auditorium, take the elevator to the Laboratories and open the vault door. During the cutscene with Tatyana, do not kill Natasha.


Forsaking
Leave alone. Forsake what’s not your burden
After defeating the Matryoshka in the Auditorium, take the elevator to the Laboratories. Then, enter the elevator again and go up to leave the Bunker alone.

Challenges

The Subject
Finish the game on Cold difficulty

The Survivor
Finish the game on Hypothermia difficulty

The Anomaly
Finish the game on Absolute Zero difficulty
Complete the game on each difficulty:
- Cold
- Hypothermia
- Absolute Zero
The achievements do not stack.

Urgency
Finish the game in under 3 hours
The game can be easily completed within 2 hours once you are familiar with the story, maps, and puzzles. You can track your current playtime in the Save Menu.
Missable Achievements

Colder than I remember
Get all major achievements
Unlock all 39 major achievements. The only non-major achievements are:

Socialize
Get to know more about your expedition comrades
After entering the frequency into the Station computer, talk to Ivan three and to Mikhail four times.

Not the one I want
Find the remnants of the expedition that couldn’t handle the call
While fixing the Sensors, interact with the stone in the southwest of the Station:


Tools of the trade
Collect all secret tools
Find all three unbreakable tools:
- Sickle
- War Hammer
- Chain Wrench
For the Sickle, pick up the Valve in the Experimental Laboratory and repair the pipe next to the pool in the Banya, then interact with the sauna heater in the room next door.
For the War Hammer, defeat the Bauks boss in the Kitchen after leaving the Laboratories.
For the Chain Wrench, reroute the power to Area 6 in the Generator Room and point the flashlight on this computer screen in the Experimental Laboratory:

Note the colors, then reroute the power to Area 2 and enter the sequence in the Prison.

Workers and Peasants
Your Achievement? You mean OUR Achievement
Combine the Sickle and the War Hammer.
Miscellaneous Achievements

Investigator
Inspect 200 places. Looking around to help you look inside
Inspect 200 of the 300+ interactable hotspots throughout the game.

Buried along
Did not survive the inhabitants’ welcome
Die from an enemy attack.

Frozen grave
Did not survive the freezing embrace
Freeze to death.

Incubation halted
Rip 50 of them. They always tear in the middle
Defeat 50 Cocoons (small worm-like creatures) with a melee weapon.

Enlightened
Burn and end 25 of them. Are all of them the same one?
Defeat 25 Bauks (shadow creatures) with a flashlight.

Abuse
Use your tools to stun it 5 times
Stun the Matryoshka in the Headquarters five times using tools:


Almost frozen
Recover from Severe Hypothermia in the warmth of a Safe Room
Enter a Safe Room with Severe Hypothermia and recover back to Normal body temperature. This can best be done in the circular Torus Hall of the Laboratories. Simply wait outside the Private Laboratory (Safe Room) until you suffer from Severe Hypothermia, then enter the Safe Room to recover:


UVB-76
*buzz* -NA, Dmitri, Yu – *buzz* -nA…
Interact with the radio in the Command Center (Bunker):


Together on their own
Return the ring to Micha. They never stopped trying
Find the Engraved Ring in the Stairwell (Laboratories) and return it to Misha in the Starting Cave:



Rest in Pieces
Reunite the physical and spectral. She’s whole at last
Find the Child Blanket in the Children’s Dormitory (Headquarters) and return it to Yelena in the Guard Room at the Main Entrance:


A last hug
Reunite the Shadow and the Cold. A flowery grave
Find the Gelid Flower in the Children’s Dormitory (lower) and the Dark Flower in the Experimental Laboratory, then plant them in the snow pile in the Main Hall. Touch them to summon one of each enemy type, and interact with the power panel behind the painting when the Bauk and the Frostbite are in the center to trigger a cutscene:


The last caress
Receive a final warm touch from her
Interact with the Matryoshka after defeating her in the Auditorium:

Collectibles

All is known and acquired
Collect all
Find all 119 collectibles:

Memoirs
Collect all your experiences in your Journal
Progress through the story to unlock all Journal Entries (16):
- A final truth is coming
- The Song and the Star
- My Mentor, at last
- Power Lines
- Brain in a Jar
- Children’s Play
- They are always close
- I failed…
- Where is Mikhail
- The Autopsy
- Ivan, Generators and the Cold
- Prison Break
- I’m Not Alone
- The Abandoned Bunker
- 9:12 am, September 23, 1985
- 9:46 pm, September 22, 1985

Cartographer
Collect all maps
Collect all Maps (6) in a single playthrough:
- Zhokhov Station (story item)
- Living Quarters and Prison
- Command Center and Support Facilities
- Lower Headquarters
- Upper Headquarters
- Laboratories

Wrapped up
Collect all coats
Collect all Coats (4) in a single playthrough:
- Research Overcoat (story item)
- Military Trench Coat
- FR10 Prototype
- Camouflage Coat
For the Camouflage Coat, open the wardrobe after collecting the other three Coats.

Nested
The set is complete. Curiously, there is damage on every doll, but one
Collect all Matryoshka Dolls (10) in a single playthrough:
- The Embrace: Olga
- The Corruption: Sergey
- The Hubris: Boris
- The Wrath: Andrey
- The Naiveness: Nikolai
- The Revolution: Tatyana
- The Obedience: Sophia
- The Honor: Dmitri
- The Rupture: Yelena
- The Purity: Nadya (story item)

Military chaos
Collect all logs – I

Luxury that covers
Collect all logs – II

Science gone too far
Collect all logs – III
Collect all Logs (44) in a single playthrough:
- Children Tiara (Log II)
- Power Rerouting (Log III)
- Committee’s Final Reply (Log II)
- Project Retrospective (Log I)
- Child’s Crumpled Letter (Log II)
- Bloodied Note (Log I)
- Letter Covered with Adhesive Tape (Log I)
- Labs Log – Session B93 (Log III)
- Labs Log – Restructure (Log III)
- Discipline – Final Warning (Log III)
- Letter for Misha (Log III)
- Olga’s Request about Soldiers (Log II)
- Adorned Music Box (Log II)
- A New Methodology (Log II)
- Photograph of a Woman (Log II)
- Boris’ Book (Log II)
- Old Vase – Saturn (Log II)
- Old Vase – Mars (Log II)
- Old Vase – Mercury (Log II)
- Children’s Book of Poems (Log II)
- Past Failures (Log II)
- Order for Solitary Confinement (Log II)
- New Member Complaints (Log II)
- Alarm Malfunction – Procedure (Log I)
- Report From Head of Security (Log I)
- A Discarded Note (Log I)
- Purge All Firearms (Log I)
- Letter to Parents (Log I)
- Top Secret Letter (Log I)
- The Hanged Man (Log I)
- Crane Instructions (Log I)
- Crane’s Manual – Top Fragment (Log I)
- Crane’s Manual – Center Fragment (Log I)
- Crane’s Manual – Bottom Fragment (Log I)
- Crumpled Note (Log I)
- Forklift Complaint (Log I)
- Medical Report (Log I)
- Generator Instructions (Log I)
- Strange Drawing (Log I)
- Prison’s Daily Report (Log I)
- Prisoner Log Fragment (Log I)
- Main Entrance’s Diary (Log I)
- Sisterhood Bond (Log I)
- Soldier’s Note (Log I)

Echoes stuck in ice
Witness 28 echoes of the past
Collect all Echoes of the Past (28) in a single playthrough:
- Military Shoots At Monsters
- Crazy Prisoner
- Truck Driver
- Boris & Sergey
- Sergey Outranks Soldiers
- Sergey Complains
- Sergey Meeting
- Tatyana Dolls
- Yelena Dolls
- Olga Stops Tatyana
- Olga Class
- Olga Pondering
- Sergey Watching Nadya
- Sergey Kills Boris
- Brain (6x)
- Sergey Slaps Tatyana
- Olga Ponders Jumping
- Sophia Meets Tatyana
- Olga Meets Sophia
- Olga Pregnant
- Sophia Says Goodbye
- Love Letter
- Sergey Tatyana Powers
This achievement is currently broken.

Summary
Collect all subjects’ brief slides
Collect all 6 Slides in a single playthrough:
View the Slides in the Meeting Room.

Audiovisual confessions
Collect all tapes and check them
Collect all Cassette Tapes (3) and VHS Tapes (3) in a single playthrough:
- Cassette Tape: Entry Number …
- Cassette Tape: Entry Number 45
- Cassette Tape: Entry Number 06
- VHS Tape: Autopsy of ID 0267
- VHS Tape: Boris’ God
- VHS Tape: Boris Interview
Listen to the Cassette Tapes in Olga’s Office and watch the VHS Tapes in Boris’ Room.
⋗︎ Bunker
Log I: Soldier’s Note
In a locker in the Male Dormitory:

Log I: Sisterhood Bond
In the Female Dormitory:

Map: Living Quarters and Prison
In the locked cabinet in the Kitchen (use an Ice Axe):

Log I: Main Entrance’s Diary
Next to the barrel at the Main Entrance:

Echo of the Past: Military Shoots At Monsters
Matryoshka Doll: The Honor
In the Guard Room by the Main Entrance:

Log I: Prisoner Log Fragment
In the right drawer in the Prison Lobby (code: Yellow – Blue – Red – Blue):

Log I: Prison’s Daily Report
In the left drawer in the Prison Lobby (code: Purple – Purple – Blue – Turquoise):

Log I: Strange Drawing
In the first Prison Cell:

Echo of the Past: Crazy Prisoner
In the second Prison Cell:

Log I: Generator Instructions
In the Generator Room:

Log I: Crumpled Note
Log II: Olga’s Request about Soldiers
In the Main Corridor:

Log I: Medical Report
In the Medical Ward:

Log I: Crane’s Manual – Bottom Fragment
In the Command Center Lobby:

Log I: A Discarded Note
Log I: Purge All Firearms
Log I: Letter to Parents
In the Headmaster’s Office upstairs:

Map: Command Center and Support Facilities
In the locked drawer between the Headmaster’s Office and the Main Entrance (use an Ice Axe):

Coat: Military Trench Coat
Pick up the Small and Sturdy Key in the locker between the Headmaster’s Office and the Command Center (use a Wrench), then open the armor crate in the Construction Corridor downstairs:


Log I: Report From Head of Security
In the Command Center:

Log I: Crane Instructions
Log I: Crane’s Manual – Center Fragment
Log I: Forklift Complaint
In the Storage Room opposite the Medical Ward:

Log I: Crane’s Manual – Top Fragment
In the Storage Room under the walkway with the crane controls:

Log I: Top Secret Letter
Log I: The Hanged Man
Solve the Crane Puzzle to lower the body in the Storage Room:

Echo of the Past: Truck Driver
Open the lid in the Kitchen with a Wrench to get the Vehicle Key, then activate the forklift in the Storage Room with the Vehicle Key to reach the Truck Docks:

Echo of the Past: Boris & Sergey
Next to the Medical Saw in the Morgue:

Log I: Alarm Malfunction – Procedure
On the crate between Ivan and the elevator during the first Matryoshka encounter:

⋗︎ Headquarters
Echo of the Past: Sergey Outranks Soldiers
In the Center Hall:

Log II: Old Vase – Mercury
Examine the vase on the west-wing Balcony:

Echo of the Past: Sergey Complains
In the Luxury Dorm in the west wing upstairs:

Log II: Past Failures
In the Luxury Dorm in the west wing upstairs:

Log II: Order for Solitary Confinement
In the Banya next door to the Luxury Dorm:

Map: Lower Headquarters
In the Sauna behind the Banya (destroy the ice block with an Ice Axe):

Log II: Photograph of a Woman
Log II: Children’s Book of Poems
Log II: New Member Complaints
Echo of the Past: Sergey Meeting
In the Meeting Room. The Log on the floor appears after talking to the Little Girl:

Slide: Subject ID 0571
In the Projector Room of the Meeting Room:

Log II: Old Vase – Saturn
In the east-wing Corridor upstairs:

Log II: Old Vase – Mars
Matryoshka Doll: The Wrath
Downstairs in the west, by the grandfather clock:

Log II: Boris’ Book
In Boris’ Room upstairs, accessible after solving the Grandfather Clock Puzzle:

VHS Tape: Boris Interview
In Boris’ Room upstairs, accessible after solving the Grandfather Clock Puzzle:

Map: Upper Headquarters
Downstairs in the east:

Echo of the Past: Tatyana Dolls
Echo of the Past: Yelena Dolls
In the Children’s Dormitory (lower), between the Child Blanket and the Gelid Flower:

Log II: Children Tiara
Echo of the Past: Olga Stops Tatyana
In the Children’s Dormitory (upper):

Log II: A New Methodology
In the Classroom:

Echo of the Past: Olga Class
In the Classroom:

⋗︎ Laboratories
Log III: Letter for Misha
In the Stairwell on the lowest floor, in the corner next to the Engraved Ring:

Log III: Power Rerouting
In the circular Torus Hall:

Echo of the Past: Olga Pondering
Immediately after receiving the High-Tech Flashlight from the Little Girl:

Map: Laboratories
In front of the vault door:

Echo of the Past: Sergey Watching Nadya
In the circular Torus Hall:

VHS Tape: Autopsy of ID 0267
Cassette Tape: Entry Number 45
In the Experimental Laboratory (use a Wrench and a Shiv to open the drawer):

Coat: FR10 Prototype
Log III: Labs Log – Restructure
In the Experimental Laboratory:

Echo of the Past: Sergey Kills Boris
In the sealed metal container in the Private Laboratory (use a Shiv):

Echo of the Past: Brain (6x)
Story-related events. Take the Brain in a Jar in the Private Laboratory, then find the Echoes:
- in the elevator,
- in front of the vault door in the circular Torus Hall,
- at the computer in the Experimental Laboratory, and
- in the circular Torus Hall where you got the High-Tech Flashlight.
⋗︎ Backtracking
Slide: Subject ID 0671
In the Banya in the Headquarters (use a Shiv):

Matryoshka Doll: The Hubris
Under the bed in Boris’ Room (use a Shiv):

Log II: Committee’s Final Reply
In the Restroom under Boris’ Room (use a Shiv):

Echo of the Past: Sergey Slaps Tatyana
In the Classroom, available after obtaining the Sample Amulet:

Echo of the Past: Olga Ponders Jumping
Echo of the Past: Sophia Meets Tatyana
In the Children’s Dormitory (upper), available after obtaining the Sample Amulet:

Log II: Adorned Music Box
Cassette Tape: Entry Number 06
Echo of the Past: Olga Meets Sophia
Echo of the Past: Olga Pregnant
In Olga’s Office next to the Meeting Room (open with Psychiatry Key):

Slide: Subject ID 0167
In the Archives next to the Headmaster’s Office (use a Shiv):

Log I: Letter Covered with Adhesive Tape
In the Archives next to the Headmaster’s Office (Shiv):

Echo of the Past: Sophia Says Goodbye
Matryoshka Doll: The Revolution
At the Main Entrance, available after obtaining the Sample Amulet. The Matryoshka Doll appears after witnessing the Echo of the Past:

Log I: Project Retrospective
VHS Tape: Boris’ God
In the Monitor Room next to the Guard Room:

Matryoshka Doll: The Naiveness
In the Solitary Cell in the Prison:

Echo of the Past: Love Letter
Find the Engraved Ring in the Stairwell (Laboratories) and return it to Misha in the Starting Cave:


This will unlock the achievement Together on their own.
Slide: Subject ID 0367
In the Starting Cave:

Log I: Bloodied Note
In the Kitchen:

Slide: Subject ID 0471
In the Locker Room (use a Shiv):

Matryoshka Doll: The Obedience
Defeat the Cocoon boss in the Storage Room. To start the encounter, locate and listen to the radio signal between the Medical Ward and the Storage Room, then follow it into the Storage Room. Keep the radio button pressed and walk around to track the signal under the walkway and in the center of the room:

Matryoshka Doll: The Rupture
Find the Child Blanket in the Children’s Dormitory (Headquarters) and return it to Yelena in the Guard Room at the Main Entrance, then interact with her in the Main Hall:

Slide: Subject ID 0267
In the Experimental Laboratory, destroy the wooden crate in the prison cell (use a Pick Axe):

Log III: Labs Log – Session B93
Cassette Tape: Entry Number …
In the Experimental Laboratory, near the Dark Flower:

Log II: Child’s Crumpled Letter
Log III: Discipline – Final Warning
Echo of the Past: Sergey Tatyana Powers
In the room with the Delicate Crank:

Matryoshka Doll: The Embrace
Use the Ceremonial Shashka to destroy the flesh obstacle outside the Female Dormitory (Bunker):

Matryoshka Doll: The Corruption
After defeating the Matryoshka in the Auditorium, examine the part on the left:

Puzzle Solutions
Click on the puzzle names to reveal their solutions.
Station
Computer/Sensor Frequency
3472
Bunker
Prison Switches
Cell 1: Random code; on the sign in front of Cell 1
Cell 2:Random code; on the sign in front of Cell 2
Solitary Cell: Red – Red – Yellow – Green
High Quality Flashlight: Blue – Green – Turquoise – Red
Prisoner Log Fragment: Yellow – Blue – Red – Blue
Prison’s Daily Report: Random code;
Health Pills: Random code; on the back of the Strange Drawing
Chain Wrench: Random code;
Crane Controls
A2 – B2 – D2 – C1
Main Control Panel Code
30802118
Headquarters
Grandfather Clock
X – IX – II
Attendance Board
Andrey – Nikolai – Tatyana – Sophia – Dmitri – Yelena
Speedrun Walkthrough
Prologue
- Pick up the Ceremonial Shashka and destroy the stones in the center.
Station
- Talk to Mikhail to get the Professional Flashlight.
- Enter the Storage Room and equip the Research Overcoat.
- Read the Seismo-magnetics Sensors Calibration Log.
- Head to the Server Room and enter the frequency 3472.
- Pick up the Ice Axe in the corner, then talk to Mikhail and Ivan.
- Leave the Station and repair Sensor 1 in the east:
- Calibrate sensors
- Magnetometer Right
- Start measurements
- Talk to Mikhail, Ivan, and Natasha in the Server Room to get the Radio.
- Open the replacement parts chest under the Station and pick up the Circuit Board.
- Fix Sensor 2 in the center of the island:
- Check hardware
- Replace the board
- Set frequency to 3472
- Start measurements
- Repair Sensor 3 in the north:
- Set frequency to 3472
- Start measurements
- Fix Sensor 4 in the northwest:
- Calibrate sensors
- Seismograph Left
- Start measurements
- Repair Sensor 5 in the southwest:
- Start measurements
- Try to return to the Station, then examine the chain.
Bunker
- Locate the Kitchen Key on a table in the Kitchen.
- Reach the Male Dormitory and pick up the Locker Room Key.
- Enter the Locker Room and take the Ice Axe from the corpse.
- Use the Ice Axe to remove the planks in the Restrooms, then cross through the hole.
- Reach the Female Dormitory and talk to the Little Girl, then pick up the Canteen Key.
- Open the gate to the Main Corridor with an Ice Axe.
- Pick up the Electrical Fuse in the Guard Room by the Main Entrance.
- Use the Electrical Fuse to repair the color panel in the Prison.
- Unlock the Solitary Cell with the color code Red – Red – Yellow – Green.
- Pick up the Wrench in the Solitary Cell, then exit through Cell 2 (random color code on sign).
- Return to the Main Corridor and open the door opposite the Main Entrance with a Wrench.
- Enter the Generator Room and talk to Ivan, then reroute the power to Area 2.
- Find the Command Center Key in the Medical Ward and reroute the power to Area 1.
- Head upstairs toward the Command Center. The power will go out.
- Reroute the power to Area 1 again and enter the code 30802118 in the Command Center.
- Reroute power to Area 2, then pick up the Medical Saw in the Morgue.
- Exit the Morgue through the lower-right morgue drawer.
- If you are going for the Predilection ending, give three Hand Warmers to Mikhail.
- Bring the Medical Saw to Ivan in the Generator Room, then meet him in the Command Center.
- Head to the Main Entrance and interact with the control panel in the Guard Room.
- Unscrew the plate outside the Guard Room and turn off the alarm.
- Interact with the panel by the main door, then with the panel by the opposite door.
- Open and enter the elevator.
Headquarters
- Pick up the Headquarters Key in the Banya (west wing, upstairs).
- Return to the Main Hall and use the key to open the door in the east (lower floor).
- Remove the planks from the vent and pick up the Replacement Breaker.
- Unscrew the plate in the Meeting Room (east wing, upstairs) to get the Winding Clock Key.
- Fix the breaker panel in the Stairwell at the end of the corridor:
- Switch off all breakers: G – B – F – I.
- Try to repair the breaker (with the Replacement Breaker).
- Switch on all breakers: A – G – I – C – E.
- Return to the Main Hall and access the lower corridor in the west wing.
- Use the Winding Clock Key on the grandfather clock and enter the code X – IX – II.
- Go through the gate and interact with the ladder upstairs for a shortcut.
- Enter Boris’ Room and open the chest to get the Psychiatry Key.
- Use the Psychiatry Key to access the Children’s Dormitory in the east wing.
- Learn the children’s names by inspecting the following:
- carving over the bunk bed in the lower Dormitory (Nikolai),
- height marks on the wall in the lower Dormitory (Andrey),
- dolls on the bed in the upper Dormitory upstairs (Yelena),
- ripped notebook page in the corner in the upper Dormitory (Sophia),
- small paper note on the dining table in the Classroom (Tatyana), and the
- book on the school desk in the Classroom (Dmitri).
- Solve the Attendance Board Puzzle: Andrey – Nikolai – Tatyana – Sophia – Dmitri – Yelena.
- Exit through the door by the attendance board.
Laboratories
- Play hide-and-seek with Yelena, then pick up the High-Tech Flashlight.
- Enter the Laboratory and take the Valve from the dead scientist and a nearby Shiv.
- Take and equip the FR10 Prototype coat.
- Use a Shiv to open the sealed container in the Private Laboratory.
- Pick up the Sample Amulet and the Brain in a Jar, then find the Echoes:
- in the elevator,
- in front of the vault door in the circular Torus Hall,
- at the computer in the Experimental Laboratory, and
- in the circular Torus Hall where you got the High-Tech Flashlight.
- Pick up the Science Keycard and open the door in the Stairwell.
Backtracking
- Use the Science Keycard to unlock the door next to the elevator in the Headquarters.
- Reach the Generator Room in the Bunker and reroute the power to Area 6.
- Enter the Private Laboratory to get the Psychiatry Keycard.
- Pick up the Delicate Crank in the Experimental Laboratory.
- Open Olga’s Office in the Headquarters (east wing, upstairs) with the Psychiatry Key.
- Use the Ballerina Figurine and the Delicate Crank on the Adorned Music Box.
- Pick up the Legacy Key and get the Ceremonial Shashka in the Luxury Dorm.
- Use the Ceremonial Shashka to remove the flesh obstacle, then defeat the Cocoons.
- Remove the flesh obstacle from the door in the Main Hall and defeat the Matryoshka.
- Pick up the Military Keycard, then open the vault door in the Laboratories.