This Doom 3 walkthrough is divided into 27 total pages.
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EnPro Plant
![Doom 3 Walkthrough - Doom 3 408](doom-3-408-small.webp)
Step off the elevator and Sarge updates your objectives. Armor is behind the crate on the left. Heal at the station on the right before heading through the door.
![Doom 3 Walkthrough - Doom 3 409](doom-3-409-small.webp)
Grab the clip behind that orange crate on the right, then descend these stairs.
![Doom 3 Walkthrough - Doom 3 410](doom-3-410-small.webp)
An Imp and a fat zombie attack from this storage room. You'll get backup from this security bot. Grab the shells from the storage room.
![Doom 3 Walkthrough - Doom 3 411](doom-3-411-small.webp)
Follow the bot, allowing it to clear out enemies ahead. On a desk in this room is some armor and Paul Raad's PDA which provides some background.
![Doom 3 Walkthrough - Doom 3 412](doom-3-412-small.webp)
A medkit and two clips are here.
![Doom 3 Walkthrough - Doom 3 413](doom-3-413-small.webp)
This panel will stop a gas leak and extinguish a fire around the corner.
![Doom 3 Walkthrough - Doom 3 414](doom-3-414-small.webp)
Continue to follow the bot, helping him out as he battles many Imps. It is possible for the bot to be destroyed.
![Doom 3 Walkthrough - Doom 3 415](doom-3-415-small.webp)
Explore the area and find another Imp behind these shelves. In this room you'll find a medkit, a clip, an ammo belt and cells.
![Doom 3 Walkthrough - Doom 3 416](doom-3-416-small.webp)
Most important is this room where you'll have your first chance to get a plasma gun if you missed it in the last level. Also here is a medkit.
![Doom 3 Walkthrough - Doom 3 417](doom-3-417-small.webp)
Pick up the plasma gun and this maggot spawns behind you.
![Doom 3 Walkthrough - Doom 3 418](doom-3-418-small.webp)
The bot will lead you through these double doors and then shut down. You hear the distant sounds of a woman crying. A medkit and armor are to the left.
![Doom 3 Walkthrough - Doom 3 419](doom-3-419-small.webp)
Climb this ladder to the right.
![Doom 3 Walkthrough - Doom 3 420](doom-3-420-small.webp)
The crying grows louder, and you see a woman in this office.
![Doom 3 Walkthrough - Doom 3 421](doom-3-421-small.webp)
Enter the office to initiate a cutscene. The woman pleads, "Help me."
![Doom 3 Walkthrough - Doom 3 422](doom-3-422-small.webp)
Her face becomes hideously deformed.
![Doom 3 Walkthrough - Doom 3 423](doom-3-423-small.webp)
And then her head and spinal cord rip out and begin attacking you! Jesus F. Kennedy!
![Doom 3 Walkthrough - Doom 3 424](doom-3-424-small.webp)
Meet your next enemy - the lost soul. Fast but weak, your best bet on these is your machine gun or chaingun at distance, the shotgun up close.
![Doom 3 Walkthrough - Doom 3 425](doom-3-425-small.webp)
Extend the outside service bridge with this terminal.
![Doom 3 Walkthrough - Doom 3 426](doom-3-426-small.webp)
Listen to Theresa Chasar's audio log to learn that the code is 972 for nearby storage cabinet 063. Inside are cells, a medkit and a plasma gun. This is the first "non-hidden" plasma gun in case you missed it here or here.
![Doom 3 Walkthrough - Doom 3 427](doom-3-427-small.webp)
Step outside and battle a flock of lost souls.
![Doom 3 Walkthrough - Doom 3 428](doom-3-428-small.webp)
Approach the right ledge and the service bridge extends.
![Doom 3 Walkthrough - Doom 3 429](doom-3-429-small.webp)
Advance farther down the corridor and battle another flock of lost souls.
![Doom 3 Walkthrough - Doom 3 430](doom-3-430-small.webp)
Follow the catwalk to this unlocked door. Inside you'll find cells, a clip and a medkit.
![Doom 3 Walkthrough - Doom 3 431](doom-3-431-small.webp)
This Imp is waiting for you in the next room.
![Doom 3 Walkthrough - Doom 3 432](doom-3-432-small.webp)
Defeat the Imp then vanquish the next flock of lost souls.
![Doom 3 Walkthrough - Doom 3 433](doom-3-433-small.webp)
More Imps attack, front and rear. Armor and a medkit are on the right.
![Doom 3 Walkthrough - Doom 3 434](doom-3-434-small.webp)
Lastly, defeat this maggot before descending the lift visible far-right.
![Doom 3 Walkthrough - Doom 3 435](doom-3-435-small.webp)
Step off the lift and battle more lost souls. You can just spot the cells lower-left. Farther ahead are two medkits.
![Doom 3 Walkthrough - Doom 3 436](doom-3-436-small.webp)
Two Imps are hiding in this alcove to the right. Bounce them with a grenade and you'll find some armor.
![Doom 3 Walkthrough - Doom 3 437](doom-3-437-small.webp)
In the next room you'll encounter an Imp and this creature, the Wraith. Wraiths are melee-only but they can be deadly when they get this close.
![Doom 3 Walkthrough - Doom 3 438](doom-3-438-small.webp)
Grab the medkit and cells, spawning this Imp and two others behind you. Advance to the main room seen beyond.
![Doom 3 Walkthrough - Doom 3 439](doom-3-439-small.webp)
The computer warns that the reactor has overheated to 900 degrees Celsius.
![Doom 3 Walkthrough - Doom 3 440](doom-3-440-small.webp)
The catwalk leads to this room on the left. Defeat this solitary Imp before entering. Inside are cells, clips, a plasma gun and a health station.
![Doom 3 Walkthrough - Doom 3 441](doom-3-441-small.webp)
Activate the console to replace rod 2 and initiate a cutscene.
![Doom 3 Walkthrough - Doom 3 442](doom-3-442-small.webp)
Swann and Campbell haven't found the card either. They enter this vehicle -- no you don't get to drive it.
![Doom 3 Walkthrough - Doom 3 443](doom-3-443-small.webp)
More lost souls and this Imp attack as you leave. Retreat to the health station and battle them as they enter the doorway.
![Doom 3 Walkthrough - Doom 3 444](doom-3-444-small.webp)
Backtrack to the lift, battling an Imp, this maggot and a Wraith along the way.
![Doom 3 Walkthrough - Doom 3 445](doom-3-445-small.webp)
Ride the lift up then battle more lost souls as you retrace your steps.
![Doom 3 Walkthrough - Doom 3 446](doom-3-446-small.webp)
Defeat this maggot and another Imp.
![Doom 3 Walkthrough - Doom 3 447](doom-3-447-small.webp)
The reactor, no longer overheating, is now blue.
![Doom 3 Walkthrough - Doom 3 448](doom-3-448-small.webp)
Follow the catwalk to the now-open hazard door. Shells and a medkit will be to your left.
![Doom 3 Walkthrough - Doom 3 449](doom-3-449-small.webp)
This maggot greets you as you move into the room beyond.
![Doom 3 Walkthrough - Doom 3 450](doom-3-450-small.webp)
Battle two Wraiths, then this Imp guarding a medkit, grenades and an ammo belt. Search the nearby shelves for armor.
![Doom 3 Walkthrough - Doom 3 451](doom-3-451-small.webp)
Down these stairs this maggot attacks.
![Doom 3 Walkthrough - Doom 3 452](doom-3-452-small.webp)
You'll find armor around the left corner. Approach and another maggot emerges from a secret compartment.
![Doom 3 Walkthrough - Doom 3 453](doom-3-453-small.webp)
Break out your plasma gun and take down another maggot/Imp combo. Explore the alcove ahead and find a maggot guarding a medkit and two clips. Climb the stairs.
![Doom 3 Walkthrough - Doom 3 454](doom-3-454-small.webp)
Two fat zombies await in the next room. Grab the medkit and armor on the left before exiting through the door.
![Doom 3 Walkthrough - Doom 3 455](doom-3-455-small.webp)
Battle your way past more Imps, Wraiths and lost souls. The plasma storage room ahead is inaccessible for the moment. Search the crawlspace underneath for armor.
![Doom 3 Walkthrough - Doom 3 456](doom-3-456-small.webp)
Before heading through this door, search the area to the right for a clip and medkit.
![Doom 3 Walkthrough - Doom 3 457](doom-3-457-small.webp)
This cutscene shows a soldier giving you the communications card. And a Wraith is slithering in for the kill!
![Doom 3 Walkthrough - Doom 3 458](doom-3-458-small.webp)
Yowza! That's a lotta mouth!
![Doom 3 Walkthrough - Doom 3 459](doom-3-459-small.webp)
Defeat more Wraiths and find Steve Hammer's PDA here. Listen to his audio log to learn the plasma room storage code - 734. The airlock is here but first we want to backtrack to plasma storage.
![Doom 3 Walkthrough - Doom 3 460](doom-3-460-small.webp)
Return to plasma storage and enter the code 734. Defeat the zombie inside and grab armor, two medkits, and a boatload of plasma cells.
![Doom 3 Walkthrough - Doom 3 461](doom-3-461-small.webp)
Now you can leave. Return to the airlock and activate the panel inside to end the level.
More Doom 3 Walkthroughs
This Doom 3 walkthrough is divided into 27 total pages.