The Killing Antidote Guide | All Challenge Mode Unlock Locations

This is how you unlock all the challenge mode locations

Game Guide by Arne on Jan 08, 2025

The Killing Antidote is a surprisingly fun game that has every single vibe the Resident Evil games have, all the while offering a lot of customizable options for the players, especially in the outfits department. Owing to its similarity to RE, among other things, the game has many secret rooms and locations that are only accessible through certain methods. These are referred to as Challenge Modes, and you can unlock them by finding certain items.

There are four of these challenge modes, and these locations let you unlock more outfits for Jodi. In this guide, you will find all the locations of the Challenge Modes and how to unlock them.

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Centralized Control Area

You have to make your way into the A2 control room. Here, look at the photograph on the board on the far wall. It should be right beside the blocked-off Doorway. This will unlock the Centralized Control Area. To reach this area, go back to the beginning area of the game, where you unlocked two large double doors using a button on the wall.

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Abandoned Hanger

This one is located in the B1 Water Supply Room. On the central container, you will find a toy plane on top of it. Finding this unlocks the Abandoned Hanger.

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Desperate Weepers

Go to the A3 Monitoring Office. Here, you will find an officer with a heart drawn outside it. Use the code 1314 to get in. On the wall beside you, you will find a board with a picture. This picture unlocks Desperate Weepers.

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Nightmare Castle

Once you get away from the Devourer, you will come across a tunnel with a fan. There is a door down there, which is a small room. Here, you will find a set of lockers and a Pumpkin plushie on top of the lockers. The plushie unlocks the Nightmare Castle.

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