All Four Key Locations - MONOCHROME Wiki
Where each key hides, what searchable furniture looks like, and the order that stops you from walking past the same drawer three times.
Overview
The level wants four keys, and it spreads them across the corridor network to force you through every section of it. Each key opens one deadbolt on the exit route, so a single missed key leaves the elevator permanently sealed. This page maps all four, explains what the searchable furniture looks like, and gives you a fixed order that avoids the wandering that gets players caught.
All Keys Collected
This full run shows every key being collected in sequence, including the containers holding them. It is the quickest reference for double-checking a spot you believe you have already searched.
Where Keys Hide
Keys are not lying on the floor. Each one is tucked inside a container or piece of furniture, so the search is about knowing which objects are interactive rather than scanning the ground.
Storage Cabinets
Tall service cabinets in the utility rooms are the most common key container on the level.
Desks and Drawers
Office-style desks near the early rooms hold a key inside a first or second drawer.
Crates and Boxes
Stacked crates in the storage areas must be interacted with individually rather than as a group.
Lockers
Wall lockers double as hiding spots and occasionally as a key container, so check before you hide.
Appliance Units
Kitchen and break-room appliances are easy to walk past and occasionally hold the last key.
Floor Containers
Small floor-level boxes require a held interaction, so a quick tap will not open them.
Key and Deadbolt Pairing
Each key maps to one deadbolt, and the pairing matters when you are diagnosing an escape that refuses to complete.
| Key | Search Area | Opens |
|---|---|---|
| Key one | Early utility rooms | Deadbolt one |
| Key two | Mid-level storage | Deadbolt two |
| Key three | Office and break rooms | Deadbolt three |
| Key four | Far corridor room | Deadbolt four |
The Search Order
This order exists to keep noise behind you instead of in front of you. Searching in this sequence also means the creature spends most of the run investigating rooms you have already finished with.
Skip the order and you will still find the keys, but you will cross the patrol lane far more often.
Clear the far rooms first
Start at the end of the corridor network and work toward the spawn side, so your noise trail stays behind you.
Open deadbolts on pickup
Do not carry keys around. Use each one as soon as you find it so the lock state is always accurate.
Check lockers twice
A locker can be both a hiding spot and a key container, so open it before you rely on it for cover.
Sweep remaining containers
Once three keys are found, search every remaining container methodically rather than guessing which holds the fourth.
Signs You Have Missed a Key
These are the indicators that a search was incomplete, as opposed to a key that genuinely failed to appear.
- You have searched the whole network and the deadbolt wall still shows a closed lock.
- One corridor felt shorter than the others, suggesting a room was bypassed entirely.
- A container prompted an interaction but you moved before the hold completed.
- You found three keys unusually quickly, which often means one room was skipped.
How the Keys Are Distributed
The four keys are deliberately spread across different sections so that no single area can be skipped. Utility rooms, the storage wing, the mid-level offices and the far corridor each hold one, which maps directly onto the areas described in the map guide.
That distribution is why a partial sweep so often ends in a sealed deadbolt. If you have covered only the near half of the network when three keys are in hand, the fourth is almost certainly sitting in the room you avoided, as the last key guide explains.
Frequently Asked Questions
How many keys are in the game?
Four, matching the four deadbolts on the exit route. The official description states the objective as retrieving four keys and one code.
Do key locations change between runs?
The rooms stay fixed, but individual containers can shift between builds. Treat the room order as stable and the specific furniture as something to recheck after a patch.
What does a key actually look like?
It appears as a small pickup inside a container rather than a world object you can spot from across the room, so the search is about opening furniture rather than scanning floors.
Can two players carry the same key?
No. Each key is a single pickup, so in a group the keys end up split across players and everyone should open their deadbolt immediately.
Why can I not open a deadbolt?
You are almost certainly carrying the wrong key. Each key matches one specific deadbolt, and the interaction will not register on a lock it does not belong to.
Is there a way to see remaining keys?
No. There is no objective tracker or HUD counter, which is why the map guide recommends keeping a mental tally as you search.