Please note that The Red Strain expansion is not accessible in saves where players have achieved an ending. 

If you would like to play The Red Strain on your current playthrough and you have achieved an ending, we recommend reloading to a previous save. Otherwise, you will need to restart the game and begin a new playthrough.

The Red Strain is a challenging expansion to Atomfall so we'd recommend that players enter the new area prepared! Get stocked up with healing items, upgrade your equipment and get those perks unlocked!

Need a hint?

The Quarantine Zone is a mysterious place! Perhaps you will find a lead to Stafell Crag via an innocent and useful storage system? Once you've accessed the lift, new peril will await!

Need a bigger hint?

This contains spoilers! Highlight below to read.

You can access the new area, Stafell Crag, via the lift shaft in the Slate Mine Cave in Slatten Dale. Accessing a pneumatic tube will prompt the lead to take you there to appear. Once you take the lift, you will need a signal redirector to access the perimeter wall. Once you're in, your new adventure will begin!

There is a video available below if you'd like a walkthrough to the caves.

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