The Killing Antidote Guide | Lock Code And Totem Mask Puzzle Explained

Unlock the tricky lock code puzzle by using all four Totem Masks or the direct keypad code.

Game Guide by Faviyan Mustafiz on Nov 20, 2025

In The Killing Antidote, it is easy to get stuck on the lock code puzzle that uses mysterious Totem Masks. This short guide walks you through how the puzzle works, where to go when masks do not show up, and what code to enter if something goes wrong.

With these steps, you can clear the lock quickly and get back to exploring.

The Killing Antidote, PC, Gameplay, Lock Code And Totem Mask Puzzle Explained, Screenshot, NoobFeed

Overview Of The Totem Mask Lock Puzzle

At a certain point in The Killing Antidote, you face a locked device that needs a code. Instead of finding the number in a note, you must discover it yourself. The game hides four Totem Masks in the area.

Each Totem Mask has a number printed on its back. When you find all four masks and read every number, you put them together to form the full lock code. This turns a simple keypad into a small investigation that rewards careful exploration.

How To Reveal The Lock Code With Totem Masks

To solve the puzzle as intended, move through the nearby rooms and search for each Totem Mask. Check shelves, corners, and other spots where collectibles usually sit.

Every time you pick up a Totem Mask, turn it around or inspect it closely to see the digit on the back. Remember, or write down, each number in the order you want to try them. Once you have all four numbers from the masks, return to the lock and enter the full sequence to open it.

The Killing Antidote, PC, Gameplay, Lock Code And Totem Mask Puzzle Explained, Screenshot, NoobFeed

Fixing Missing Totem Masks In Your Collection

Sometimes a Totem Mask does not appear in your collection or seems to be missing, even though you feel you already picked it up. When this happens, the game gives you a simple fix.

Return to Judy's Office. Inside Judy's Office, look at the shelf. Any Totem Masks that failed to register correctly will be sitting there. Interact with the masks again so they are counted properly. After that, head back to the lock and use the numbers you have gathered.

Quick Answer: Use The Backup Lock Code 2750

If you still cannot find one or more Totem Masks, or if the puzzle just refuses to work, you do not have to stay stuck. The lock can be opened directly with the keypad code 2750.

Enter 2750 on the lock, and it will open, even if the masks were never found or displayed in the collection. This lets you bypass any bug or missed collectible and continue the story without losing momentum.

Also, check our The Killing Antidote Review and other guides below: