While exploring the Sevastopol in Alien: Isolation a total of 10 Nostromo Logs can be found. Each log is a recording from a passenger aboard the Nostromo before all the chaos that was the Alien ensued and collecting all 10 of them will get you to the Archivist achievement.
Alien: Isolation Nostromo Logs Complete Location guide
Alien: Isolation Nostromo Logs Location 1
In Mission 4, you will have to enter the Relay Facility i.e the room with all the computers and then you’ll find it in a corner on the right side of the room.
Alien: Isolation Nostromo Logs Location 2
In Mission 10 after you exit the transit car, walk towards the door which will be labeled Workplace Solutions. And then from there, open the door on the left to access to the second Nostromo Log which is inside.
Alien: Isolation Nostromo Logs Location 3
While backtracking in Mission 16, you will have to return to the Lorenz Systech Spire and head towards the server room where the power went down and an Alien and android both had appeared at the same time. Do you remember the room full of gas? Now that you have your Gas Mask, enter the room to get to the Nostromo Log.
Alien: Isolation Nostromo Logs Location 4
As soon as you start Mission 12, head on towards the room on the left just before entering the elevator. Use the Plasma Torch to get through the locked door, and then quickly access the computer in the room.
Alien: Isolation Nostromo Logs Location 5
In Mission 15, you have to enter that area where you and the Alien were knocked back by an explosion. Turn to the right, enter the door under the Service Elevator sign and use the Ion Torch to get through the door to the Research Facility. You will find the Nostromo Log hidden inside.
Alien: Isolation Nostromo Logs Location 6
While backtracking in Mission 16, you will have to travel to Seegson Synthetic and head on for the storage section (the area where you had the android, helps you open a door). And then climb up the ladder and enter the gas room to get to the Nostromo Log inside.
Alien: Isolation Nostromo Logs Location 7
While backtracking in Mission 16, you have to make your way to Engineering, specifically the Maintenance Deck ( the are where you lifted the car to get into the floor vent). There is a locked door here that can be accessed with the Access Tuner where you’ll find the Nostromo Log inside.
Alien: Isolation Nostromo Logs Location 8
While backtracking in Mission 16, you will have to head for the Gemini Exoplanet Solutions, which is accessible from the room where you found the Access Tuner in the Lorenz Systech Spire. And then go all the way to the area where you found the Plasma Torch, then enter the hallway on your right. Go into the next room and climb the stairs and then enter the room on your right , and use the Ion Torch on the locked door to get to the Nostromo Log.
Alien: Isolation Nostromo Logs Location 9
You’ll find this one during Mission 17. There is a Nostromo Log recorded by Ash in the office near the Spaceflight Terminal elevator.
Alien: Isolation Nostromo Logs Location 10
This is the final Nostromo Log! In Mission 17, reach to the lobby area from one of the first missions in the game, then go down the stairs on to the left. Take a right when you reach the to the bottom and then use your Ion Torch to get through the door that blocks your way to the Nostromo Log.