The Killing Antidote Guide | All Door & Keypad Codes

The Killing Antidote is clearly inspired by Resident Evil. There are many collectibles to find in the game and also many places to explore on your second run. Like its inspiration, the game features puzzles, including locked doors and rooms. These are typically opened using codes found in the vicinity. If you can’t find them, this short guide will help you unlock those places.

A2 Locker Room

The Code for the A2 Locker Room is found on the wall adjacent to the Locker. It reads 5678.

A2 Shotgun Room

The Shotgun Room can be unlocked by shooting the lock. You have to go around and look through the window, switching shoulders to get a better aim.

A2 Control Room

The Control Room has a locker as well. The code for it is on the machine beside it, written in white chalk. The code reads #520.

A2 Data Room

The Data Room is unique because you can’t find the code for it. Instead, you have to use the PC in the Captain’s Room and reset the password, which is 0000.

A1 Captain’s Room

While you’re in the Captain’s Room for the previous code, you will find a locker. The code for it is written on the wall. It reads 6090.

A3 Heart Room

Go to the room with the submachine gun. You will find an audio log on the floor. This has the code; it says 1314.

A4 Submachine Gun Room

To unlock the door, you’ll need to find the poster nearby. The code is hidden in it. It reads 3758.

A3 Butterfly Office Room

The code for the Locker here is found in an email on the computer in the room. It reads 1180.

A3 Planning Department

The code for the Locker in this room is found on the back of a wedding photograph you’ll find here. It reads 0210.

A3 Area Duty Room

To unlock the door, you’ll need to find the poster nearby; the code is on the back of it. It reads 3964.

E2 Loading Area Office

This is a stealth section, so be careful. However, there are four posters, each containing the code, so you’ll easily spot them. The code reads 9842.

B2 Body Bag Room

You need to open the door, and you’ll find the code forming there once it is opened. It reads 2940.

A4 Storeroom

The Locker in the Storeroom can be unlocked by finding a code in a small note in the same room. The code reads 9885.

A4 White Card Office Room

It is on the wall of the adjacent stairwell. However, you need to line up the numbers to get the actual code. It reads 6083.

A4 Elevator Control Room

The codes are in two lockers. Apply the codes from right to left. So, it reads 3974.

Check out our other guides on The Killing Antidote:

• The Killing Antidote Guide | All Outfits Locations
• The Killing Antidote Guide | All Challenge Mode Unlock Locations
• The Killing Antidote Guide | All Element-Z Badges
• The Killing Antidote Guide | All Golden Skull Statue Locations
• The Killing Antidote Guide | All Hard Drive Locations
• The Killing Antidote Guide | All Collectable Figures Locations
• The Killing Antidote Guide | All Audio File Locations
• The Killing Antidote Guide | All Weakened Wall and Secret Room Locations