Atomfall: Location and use of the Greenhouse Hut Key

In Atomfall, exploring the world can lead you to all kinds of locked doors, and the Greenhouse Hut in Casterfell Woods is one of those places. You’ll need the Greenhouse Hut Key to get in, but it’s not as tough to find as you might think.

Here’s a simple guide on where to find the key, how to use it, and what you get once you unlock the Greenhouse Hut.

Where to find the Greenhouse Hut Key in Atomfall

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You’ll come across the Greenhouse Hut in the Garden Centre area of Casterfell Woods, which is located at 27.4E, 90.0N on the map. If you're coming from Wyndham Village, you can take a path through the woods, or if you're up for a challenge, you can get there by the Sewers (but that’s a much harder route).

Once you're in the Garden Centre, look for the Greenhouse Hut—it’s the first hut on your right when you enter from the west. You can’t get into it right away because it's locked, and you'll need the Greenhouse Hut Key to open it.

Luckily, the key isn’t far away. There’s a boarded-up house just across from the Greenhouse Hut. It looks like you can’t get inside, but if you approach the front door, you’ll get the option to climb over the boards to get in.

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How to get inside the house in Atomfall

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Once you’re inside the house, it will be crawling with rats, and you'll need to deal with them before you can get the key. You’ll find two rat nests inside, so make sure to take care of them, either with a weapon or by using the Stomp action if you're unarmed.

Once you've cleared the house, head to the kitchen. The key is hanging above a counter on a shelf.

How to use the Greenhouse Hut Key in Atomfall

Image via Rebellion

Now that you have the Greenhouse Hut Key, head back to the locked Greenhouse Hut. Use the key to unlock the door.

Inside the hut, you'll find a few crafting supplies and a note on the wall titled “We Are Waiting For You.” This note is part of the Infiltrators questline and gives you a lead on some people hiding behind the house.

The note mentions Agravaine, a figure tied to the Infiltrators, and hints that they may be involved in the ongoing mysteries around the disaster at Windscale.

After reading the note, head behind the house where you found the key. There’s a cellar hidden there, and inside, you’ll find even more crafting supplies, ammo, and a couple more notes that continue the Infiltrators storyline. These notes explain that Agravaine’s agents were trapped, and they encountered some dangerous situations with the Druids.

In the final room of the cellar, you’ll also find a BARD Crate, which contains a Training Stimulant. The last note, titled “I Can Hear the Voice,” tells a creepy story about one of the agents who started hearing voices in the soil, which leads to another lead for Skethermoor.

The last note from the cellar directs you to Brinsop Manor Ruins in Skethermoor. That’s where the story of the Infiltrators continues, and you’ll be able to investigate more about the agents and their connection to the Windscale disaster.

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FAQ

1. Where exactly is the Greenhouse Hut in Atomfall?

• The Greenhouse Hut is located at the Garden Centre in Casterfell Woods. Its coordinates on the map are 27.4E, 90.0N. It's near the Old Mine to the northeast.

2. How do I get the Greenhouse Hut Key?

• The Greenhouse Hut Key is inside a barred-up house opposite the locked Greenhouse Hut. You need to climb over the boards to get inside, and once you're in, you can find the key in the kitchen, hanging above the counter.

3. Are there any enemies in the house with the key?

• Yes, there are rats inside the house. You'll need to deal with them before you can get the key.

4. What do I get after unlocking the Greenhouse Hut?

• Inside the Greenhouse Hut, you’ll find crafting supplies, a note titled “We Are Waiting For You,” and a clue leading you to the Infiltrators questline. There are also some ammo and other items to collect.

5. What happens after I read the note in the Greenhouse Hut?

• The note gives you a clue to investigate behind the house for a cellar. In the cellar, you'll find more crafting supplies, ammo, and additional notes that push forward the Infiltrators storyline, including a lead to Brinsop Manor Ruins in Skethermoor.

6. Where do I go after Brinsop Manor Ruins?

• The notes from the cellar point you to Brinsop Manor Ruins in Skethermoor.