Doom Eternal: Fortress Of Doom secrets maps and location
Doom Eternal guide, walkthrough
On this page of our Doom Eternal guide you will find all the secrets that are available in the Fortress of Doom
You will find the crystal at the main level of the Fortress of Doom. It is located on the right, next to the console used for selecting the mission.
Right under the top deck, you will find a place where you can distribute your perks.
Fortress of Doom
You'll find this note right below the main deck of the fortress. Just go down the stairs and stand at the entrance. The door will open automatically and let you through.
On the lower deck you will find many rooms with secrets. To get to this item you have to use two Sentinel Batteries.
On the lower deck you will find many rooms with secrets. To get to this item you have to use two Sentinel Batteries. You can reach this place by taking the stairs located opposite to the elevator.
Cheat code - All Runes Unlocked
If you go outside the Fortress, you can see a small cave on one of the sides. You need to move along the edge and fall into a small cave.
As soon as you pick up the secret, a passageway opens that will allow you to go further.
By moving south of the main deck you will reach a room where you can find a few secrets. One of them is a weapon modification. You need two Sentinel Batteries to get this secret.
By moving south of the main deck you will reach a room where you can find a few secrets. There's a weapon upgrade lying on the left. You need two Sentinel Batteries to get this secret.
At the bottom of the deck you will find two rooms with crystals. One of them is on the left. You must open it by using two Sentinel Batteries.
On one floor above, there are two more rooms with secrets. To open one of them you need to use two batteries.
At the lowest level of the Fortress of Doom you will find two rooms with crystals. One of the rooms can be only opened by using Sentinel Batteries.
Cheat Code - Praetor
To get to the collectible suspended from the ceiling, you first need to shoot the button shown in the screenshot above. This activates a jump pad that will launch you into the vent shaft. Follow it to, and you will get the floppy disk.