Accessing and Uncovering the Secrets of Vault 75 in Fallout 4

Where to find Vault 75 in Fallout 4?

To obtain the “Vault 75” quest in Fallout 4, you will not have to do anything special. In fact, there are no prerequisites, just some exploration to find it. So, the first step will be to make yourself at the police station near Malden College.

To help you, we have indicated its position on the map above. Once there, enter through the big hole in the wall and open the cell at the bottom. You will then free up access to the building's cellar.. Just move forward.

You will come to an elevator that you will have to use. This will not only allow you to get inside the shelter, but also to trigger the quest “Shelter 75” which is linked to the latter. Then turn right and move due south then west until you come across the Atrium.

Progress in Vault 75

Kill the gunners there and go towards the opening to the north. You will come across a corridor that you will have to take. Then turn left and go down the stairs behind the door. You will come across a new group of enemies.

Once cleared of these, go west to find the training ground. In the house you will come across the commander of the gunners who, once dead, will leave you the access card to the laboratory. So turn around to the stairs.

Once at the top, turn left and use the card you just collected from the door. Then go up the stairs on the left and enter the room. You will again come across gunners who you will have to get rid of.

Administrator's office and end of the quest “Vault 75”

Then search the bodies for the administrator access card. Take the opportunity to take the science figurine from the desk (to find all these figurines, go here). Then progress to the closed door which you can open with the newly acquired card.

The quest “Vault 75” then ends. However, before leaving for new adventures, choose the “Remote door control” option on the terminal. This will open the door on the left and give you access to a copy of Grognak the Barbarian's magazine.