Alien: Isolation guide: Mission 15 Walkthrough

Mission 15: The Message

Once you exit the transit your objective should update to Find a Short-Range Ambulance. Head up the stairs to your left and pass under the Towerlink Transit System sign, moving forward and using your Cutting Torch on the plate here. Head through the door and hop on the elevator to head up to the Primary Care Floor. Your objective now is to Find an Ambulance Craft.

Once there leave the elevator and head left through a door labeled Emergency Room, following the hall until you see the High Dependency sign. Turn left here and follow the corridor as it loops right, careful not to let the Synthetic see you as you pass the corpse in the wheelchair. Pass underneath the Operating Theater sign and keep following the corridor until it curves right once more, and continue this way until you reach the Ambulance Bay sign and keep going past it.

Once you enter the Ambulance Bay grab the Flashbang V.3 off the gurney and approach Towerlink 01 to receive an update objective to Find a Level 3 Upgrade for the Access Tuner. Head to the back right corner from where you entered and pick up the Level 3 Security Upgrade before once more approaching Towerlink 01 and hacking the door.

Once you’re aboard the shuttle approach the cockpit and interact with it to head to the Anesidora. Once you disembark save your game and head off to complete your new objective, Explore the Anesidora. Head through the narrow corridor left of the save game terminal and make your way through the ship, following your motion tracker. Your objective should receive an update to Bring the Anesidora’s Systems Back Online, and you’ll need to follow the corridors to a room with an audio log. Continue moving forward from this room until you find a room on the left with a door requiring a passcode. Access the terminal nearby and browse to the Personal folder, selecting Technicians report and make note of the door code, 4510. With code in hand unlock the passcode locked door and pass through the next couple of rooms until you are given the option to Restart Generator. Once you’ve done it here move to the other side of the room and complete this task again. Now use your Access Tuner to hack the middle console that pops out and bring the ship back online.

With power returned to the ship you’ll be given an update to Find Marlow. Wander around the ship, following your Motion Tracker, until you come to a door requiring your Access tuner. There isn’t much of anything to harm you in this part of the mission, save a face-hugger in the room with all the boxes. Once through this door follow the corridor until you are forced to hack another lock and then once more following the path until you reach a save game terminal. Head through into the Power Core where you’ll be given an update to Use Terminal. Walk up to the console and interact with it to enjoy an extended cut scene, giving a brief glimpse into Amanda’s mother’s last moments.

Once the scene ends you’ll need to wait for your objective to update to Shut Off Fusion Systems to Prevent Overload at which point you’ll need to interact with the nearby switch to Charge the Auxiliary Generator. Wait for Taylor to complete her part inside the power core and then hack the Maintenance Terminal and immediately afterwards use your jack to Deactivate the Fusion Relay.

Sadly you’re too late and you’ll need to start running soon, as your objective updates to Escape. Run back through the ship, sprinting the whole way. You’ll be prey to a few scripted moments here and there, but after you regain control just run as fast as you can. Once you reach the shuttle, interact with the terminal in the cockpit to return to the station and end this mission.