Whether you are looking to reach the Casterfell Woods region or want to unlock the Concrete Bunker found in the Slatten Dale region, you must know where to find the Sewer Tunnel Key in Atomfall and whether you need it or if there’s any alternate way to get inside.
As you explore the northwest parts of the Slatten Dale region in Atomfall, you will come across a locked bunker door.
When you go close, it says, “Sewer Tunnels” “Locked – Requires Unknown Key.”
And for those of you who don’t know, the Sewer is one of the underground locations in Atomfall that connects three regions.
There are also a few loot and leads that you can get within the Sewers.
As a result, many players try to get their hands on the Sewer Tunnels Key but don’t know where to look for it.
So, to help such players out, I prepared this detailed guide covering everything you need to know about the Sewer Tunnels and the Sewer Tunnels Key in Atomfall.
Where to find the Concrete Bunker Sewer Tunnel entrance in Atomfall
You can find the Sewer Tunnels locked door, aka the Concrete Bunker, at the above marked location in the northwest part of the Slatten Dale region.
How to get the Sewer Tunnel Key in Atomfall
If you look on the left side of the locked door, you will find a note that says, “Yours for a fair price.”
When you read it, you will find that someone named Molly Jowett has the Sewer Tunnel Key.
And that she can give it to you for a fair price.
Molly Jowett location
You can find Molly east of the Concrete Bunker entrance.
Follow the path down right of the bunker’s door.
You will eventually arrive at the Trading Post POI.
Talk to Molly and exhaust her dialogues until to see the Barter option.
[Note: Depending on the dialogue choices you choose, Molly will share with you the location of the Interchange – Slatten Dale.]
Back to the topic!
Once you are in the Barter menu, you will find the key in Molly’s inventory.
It says, “A key to open a concrete bunker door in Slatten Dale.”
You can get the key in exchange for two Molotovs, as they are the best trade items for Molly, along with Painkillers.
[If you don’t have Molotovs, check out my guide on where to find Molotov Cocktail Recipe in Atomfall.]
But the question is, is the trade worth it? Should you even get the key?
Should you get the Sewer Tunnel Key in Atomfall?
The short answer is no! The key to the Sewer Tunnels means nothing as there are two more entrances to the Sewers that don’t even require any key and are easy to access.
Sewer Tunnel Entrance Slatten Dale
The first entrance to the Sewer Tunnel is found east of the Trading Post when you find Molly.
Follow the side path and you will arrive at a flowing stream of water.
On the left side, you will find the Sewer Tunnels.
Sewer Tunnel Entrance Wyndham Village
The second entrance to the Sewer Tunnels is found in the Wyndham Village.
I have marked its precise location in the above map.
You need to do a lot of trekking to reach there but it is not that difficult.
Once you arrive at the marked location, you will find the Sewer Tunnel entrance.
Where does the Sewer Tunnel lead to in Atomfall?
As I mentioned earlier, the Sewer Tunnel connects three different regions.
- Slatten Dale
- Wyndham Village
- Casterfell Woods
You will mostly use it to reach Casterfell Woods early in the game.
And thankfully, the easiest and quickest way to reach Casterfell Woods is via the Statten Dale Sewer Entrance that I share above.
As soon as you enter the Sewers, follow the straight path.
At the end of the path, take right.
Go past the cage door.
Take the ladder down and interact with the cage door in front of you.
You will find yourself in Casterfell Woods.
That concludes my guide on the Atomfall Sewer Tunnel Key location, where does the tunnel leads to and whether you should get the key or not. If the article helped, please consider buying me a Coffee to help me create more content. You can also share the guide with your friends or leave a comment.
