Welcome to NGB and our Atomfall guide on the Sewer Tunnel Key, which is needed to open the Sewer Tunnel Door! This guide will cover where to find the key, what it opens, and the loot you’ll find inside.
If you need help with a specific part, please refer to our Quick Links section to quickly find the information you need!
Quick Links
Sewer Tunnel Key Location
After entering the Sewer Tunnels via the entrance in Casterfell Woods, follow the path until you reach a room with desks and filing cabinets. In this room, you’ll find a corpse leaning against a desk. Loot the corpse to get the Sewer Tunnel Key!
Sewer Tunnel Door Location
To find the Sewer Tunnel Door, head through the tunnels and follow the signs for Maintenance. Eventually, you’ll come to a white door. Open it using the Sewer Tunnel Key then head inside to find a B.A.R.D. Crate with a Training Stimulant, Antidote, and 3 Pistol Ammo.
More Atomfall Guides
Check out our Atomfall Guides and Walkthroughs main page for additional content!