The reactor control room is on the ground floor right below where you entered.
Prey reactor control room key card.
To unlock the reactor room in the talos i power plant enter the keycode 3845.
Unlocks the shuttle control room within shuttle bay.
Prey reactor core talia 3 jpg extingish the fire with the gloo cannon and you can reach the body without taking damage.
The keycard you just looted from jean s body is for a locked room in the atmosphere control room in life support.
When you get inside atmosphere.
While you re encouraged to scour the environment for the passwords and keycodes required to open these.
You ll have to backtrack a bit to get there.
Found in the pilot lounge of shuttle bay.
Prey coolant chamber keycard location power plant.
You can mostly ignore the shiny glowing reactor for now but take a minute to clear the cystoids out this will.
The keycode for the reactor room inside the power plant is 3845 it never changes.
Unlocks the reactor control room which allows you to reboot the whole system.
Found also on scott parker s body in the mechanic storage.
Parts storage the code needed to enter parts storage in prey s power plant can be obtained via duncan krassikoff s transcribe.
The keycard can be found in two places by examining nicholas stillwater s corpse on one of the higher balconies in the west the body is in the lower part of the southern grav shaft picture 1 and by examining guy croal s corpse in the balconies right above the reactor picture 2.
Talia s corpse holds the key card you need to open the door as well as a neuromod and a useful schematic.
The fire is just to the left of the reactor control room door.
Found on brittany lavalley in the fuel storage area of the shuttle bay.