The Killing Antidote – Secret Codes Guide (+ Weakened Walls)

Quick Guide to Codes

By Klare.

Keypad Codes

A2 Locker Storeroom

Code is 5678. It’s written on a nearby wall.

A2 Shotgun Room

Look through the window. Change your view to see the door lock better.

A2 Control Room

Code is #520. It’s written on a nearby control unit.

A2 Data Room

Password is 0000. You need to reset it on the computer in the captain’s room.

A3 Heart Room

Code is 1314. You can hear it in an audio file on floor A4 near the submachine gun room.

A1 Captain’s Room

Code is 6090. It’s written on a nearby wall.

A3 Butterfly Poster Office

Code is 1180. You can find it in an email on a computer nearby.

A3 Planning Department

Code is 0210. It’s written on the back of a wedding photo.

A3 Area Duty Room

Code is 3964. It’s hidden in a poster nearby.

A4 Submachine Gun Room

Code is 3758. It’s hidden in a nearby poster showing gifts.

E2 Loading Area Office (Stealth Section)

Code is 9842. You need to find four posters in this area to get the full code.

B2 Body Bag Room

Code is 2940. It’s written in two parts, one on a wall and one on a door nearby.

A4 Storeroom

Code is 9885. A note nearby has instructions to figure out the code.

A4 Office before White Card Room, after Pressure Puzzle

Code is 6083. It’s written on the wall in the stairwell. You need to line up the code correctly.

A4 Elevator Control Room

Code is 3974. It’s hidden behind two lockers in the room.

Breakable Walls

A1 Warehouse Hidden Area

Blow up the damaged wall and use the fishing container to climb up.

A1 Store Room Hidden Area

From the A3 floor, jump onto the air conditioning units. Look for a damaged wall near railings and a big drop. Use an explosive to break it.

B2 Tunnels Hidden Weapon Room One

After going through a vent, you’ll see a weapon room. Break the damaged wall with an explosive. You’ll need to go around to the back to get in.

B2 Tunnels Hidden Weapon Room Two

While looking for the first hidden area in the tunnels, you’ll find another one. It’s close to a shelf and a wire fence.

Stairwell Hidden Area

In the stairwell, you’ll find a door that needs a red key card. On its right side is a damaged wall. Use an explosive to break it and get inside.