The kett stronghold is a power station. It has allowed them to spy on Initiative activity and stage repeated attacks that are quickly reinforced. Dealing with the station will greatly improve the viability of Eos. A direct assault is inevitable, but perhaps there is a way to weaken the stronghold before the attack.

This is the final mission for the planet Eos.


The mission auto-starts when Ryder gets close to the base. The area can't be accessed until you have visited Aya for the first time during A Trail of Hope.

Kett base Eos

The kett stronghold.


Ryder has to disable that glowing blue shield and eliminate all kett inside. Saves are disabled, and there are only a few auto-saves, thus getting defeated will often require you to redo a large portion of the fighting. It is easy to get overwhelmed by ongoing waves of kett reinforcements.

Note: Leaving the base will reset the mission. You have to do all of it in one go.

Investigate the kett presenceEdit

You will need to fight your way to the map marker far inside the facility. On the way, other objectives will be revealed. The objective will complete when you reach its map marker, and the objective "Override the security terminals" will start.

Find a way inside the kett power facilityEdit

For a start, Ryder has to eliminate the kett and the two turrets protecting the entrance.

Unlock the shield gateEdit

The door into the facility needs to be unlocked. Interact with the Locked Console, then defend your position and eliminate the attacking kett while staying within the hack radius. Now Ryder can enter the facility through two doors.

Access the stronghold coreEdit

A long walk and many fights are required to reach the core of the stronghold.

The facility ahead of you has three main sections: Kett Shield Station, in the far end is the Base, and underground below the Base is the Core with the Command Center. The Kett Shield Station is the large ring-shaped construction, and beyond that is the Base.

After passing the two doors, you are in the Kett Shield Station, and more kett forces have to be defeated.

Optional: Access the kett shield array. To shut down the blue shield three consoles have to be accessed. Using the first one gains access to the shield array (marked on map).

Optional: Set the shield generators to overload (0/2). The other two consoles are further inside on the left and right sides (marked on map) of the ring-shaped structure. Use them to do some sabotage.

Optional: Overload the kett shield array. Go back to the first console and jump up on the top of the building. Use the console there. SAM informs you that the alarms have been disabled (later you'll discover that is not entirely true). Now Ryder can use the other console on the roof to deactivate the shield.

Beyond the inner end of the ring-shaped construct is the Base section of the stronghold. Kett defenders there are waiting for you.

Important: From here on you need to stay alive until all the kett and the boss have been eliminated. If you are defeated you will have to redo everything from this point.

SAM will inform you that reinforcements will arrive soon, and an alarm starts sounding. You need to shut down the alarm because reinforcements will arrive in waves as long as the alarm is on. Find an alarm console to deactivate it (no map marker; any alarm console will do). A part of the thrill is to keep on advancing until you find a console. This alarm will activate occasionally when you are fighting your way through the base.

Override the security terminalsEdit

This objective will start when you get close to any of the three terminals . One of them is at the marker for the intitial objective "Investigate the kett presence".

Three security terminals are marked on the map. Deactivate them.

Oddly, the map markers remain even after all of the security terminals have been deactivated.

Enter the building in the rear end of the stronghold and find the console that will open the floor-door to the core of the facility. Opening it completes the objective "Access the stronghold core".

Reach the command centerEdit

Down the hole is the command center with two groups of kett and the Kett Invictor (the boss).

Jump down. (If you stay standing next to the hole for a while the enemies will jump up for you.)

WARNING: It's possible to jump up again, but if you do the boss might not show up. Whether it's by design or a bug is unknown. In that case you have to reload the last save, which is when you first entered the Base section, and redo all the fighting and deactive the terminals.

Eliminate the first group of kett.

Open one of the three doors to the next room. In there is the boss and his allies. It's a good idea to eliminate the minor enemies first so you can concentrate on the boss without risking being attacked from behind or getting into cross-fire.

Eliminate the kett InvictorEdit

He is surrounded by an impenetrable shield with an orb circling around it. Destroy the orb, and the shield will disappear for a few seconds. During that time he takes damage, then he puts up the shield again. Patiently grind him down.

Occasionally he sends out an expanding orb of damage. Don't get caught in it. When you see him charging it, move to the side and hide behind some big object.

Don't get close to him, as he can kill you instantly - fight him from range.

If you are defeated, you have to reload the latest save which happened a long time ago, so you are advised to play it safe and stay alive (especially on the two hardest difficulty settings).

Unlock access to the zenith observation roomEdit

Use the console to do this.

Access the zenith observation roomEdit

Pass through two doors and use the elevator.

Disable the kett power facilityEdit

Use the console. This completes the mission.

Loot the five containers before leaving the room. Use the elevator.

Note: If you wish to fast travel from the facility, note that the map has three levels (lower right corner). The surface of Eos is the bottom one (click it). This is mentioned here because this might be the first time in the game you encounter this.


  • 1330 XP
  • 300 AVP
  • 10% Eos viability

Terminal messagesEdit

On a terminal in the zenith observation room.

Translated from Tonaizhet:

This mission is foolish. We hunt for Remnant myths while those creatures seek to oppose us. We must make them see the glory of kett, not dig through the mud of this broken planet.

I do not blame the highest one, of course. Our light only seeks to make us strong. This Remnant has poisoned the highest one's mind. It should be destroyed.

Translated from Tonaizhet:

You have heard, I am sure, of the new creatures from beyond dark space. Will they be a threat to enlightenment? The highest one does not worry, but I see pain and war in the future. We must see those creatures for the pestilence they are.

I recommend a team of our most trusted to begin elimination.

Translated from Tonaizhet:

Most enlightened,

This humble servant seeks an audience with you. When I sleep, I see things. Terrible visions of creatures I think I knew once. Why do I feel this way? Do I see the future, or the past? Please, make it stop.

If I must die to quiet these visions, I will gladly end my life. Tell me what I must do.

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