Doom 3 Cheats, Codes & Guides

Hold L and press B, A, X, Y during gameplay.

Hold L and press X, Y, B, A during gameplay.

These codes can be entered any time while playing the game. Enter code once to turn on and again to turn off.

Temp Invincibility

Hold SPRINT (Left Trigger) and Press (X) 4 Times

Show All Map

Hold SPRINT (Left Trigger) and Press (Y) 4 Times


Gives All Weapons and Ammo

Hold SPRINT (Left Trigger) and Press (B) 4 Times

GOD Mode

Hold SPRINT (Left Trigger) and Press (A) 4 Times

Invisibility

Hold SPRINT (Left Trigger) and Press (X) 2 Times then Press (Y) 2 Times

Light Amplification Goggles

Hold SPRINT (Left Trigger) and Press (Y) 3 Times and (X) 1 Time

Berserk Mode

Hold SPRINT (Left Trigger) and Press (X) 3 Times then Press (Y) 1 Time

Radiation Suit

Hold SPRINT (Left Trigger) and Press (X) 1 Time then Press (Y) 3 Times

End Level

Hold SPRINT (Left Trigger) and Press (A) 2 Times then Press (B) 2 Times

Give Chainsaw

Hold SPRINT (Left Trigger) and Press (B) 2 Times then Press (A) 2 Times

# COMBO LEVEL ITEMS
001 396 Mars City bullets
003 483 Recycling 2 clips, grenades, plasma cell, security armor
009 752 Alpha Labs 1 clip, grenades, large med kits, security armor
013 586 Admin clip, grenades, security armor, shells
017 347 Infirmary clip, large med kit, security armor, shells
023 531 Mars City Underground armor shards, large med kit, shells
038 409 Alpha Labs 2 clip, grenades, security armor
039 102 Alpha Labs 2 clips, security armor
047 123 Alpha Labs 3 clips, grenades
048 123 Alpha Labs 3 ammo belt, large med kit, plasma cell
049 123 Alpha Labs 3 armor shards
054 246 Communications grenades, security armor
054 142 Monorail grenades, rockets, security armor
063 972 EnPro Plant plasma cell, plasma gun, small med kit
064 651 Alpha Labs 4 armor shards, clip, plasma cell
078 364 Monorail clips, grenades, large med kits
079 364 Monorail clips, grenades, large med kits
103 259 Delta Labs Level 2B large med kit, plasma cells, shells
104 579 Delta Labs Level 4 ammo belt, rockets, security armor
112 538 Delta 2A armor shards, cells, shotgun
114 715 Delta 2A backpack, clip, security armor
116 972 Delta 2A BFG cell, large med kit, plasma gun, security armor
116 624 Delta 2B bullets, plasma cell, shells
117 624 Delta 2B BFG cell, grenades, security armor
213 371 Delta 2B clip, plasma cells, shells
21D 298 Delta 1 grenades, large med kit, rockets, security armor
317 841 Delta 4 bullets, clips, large med kits, rockets, security armor
386 836 Delta 3 ammo belt, bullets, clip, large med kits
387 836 Delta 3 clip, grenades, large med kit, rockets, security armor
452 571 CPU Complex grenades, rocket launcher, rockets
666 372 Delta 2B imp, security armor
669 468 CPU Complex grenades, plasma cells, security armor
Martian Buddy Lockers
# COMBO LEVEL ITEMS
001 0508 Administration ammo belt, chaingun, security armor
002 0508 Delta 2B BFG, security armor

As soon as you find the four tablets down in the cavern, take a look at the one that is farthest on the left. It may be broken, but you can clearly see it is the cover of the original Doom.

In the last level of Doom 3 called Primary Exacavition, just when you see the wall that you burst through to kill the Cyberdemon, turn left instead and look for a little crevice you can duck under. Look under there for a brick that says ID then press it as you would a normal computer screen. A hidden doorway will open and in that room you will find a personal data assistant that has all the thank you's from the designers of DOOM 3.

Find the Turkey Puncher game machine. Look behind it and push action to turn power on. Have fun!

Door code for Plasma Storage Room is 734

Lab A door code 627

When you start the level Delta Labs: Level 3 South get out of the elevator and go forward through the door straight ahead. Kill the enimies that you face and then go through the door to the right of the door that is locked. (It says Security Station) go through the door go to the control panel and open the lock. Now go out of the room and go through the door that was locked but is now unlocked. Kill the Imp that comes down and go throught the door on your right you should now be in the bathroom kill the dead marine in the bathroom (stay away from the mirrors!!!) and when you kill him go to the mirror that is on your left when you first come into the bathroom, stand in front of it for about 1 or 2 seconds ( if that doesn't work than try punching or shooting right at the mirror ) and you will see a cinematic with your character growing oldish/deadish ( his skin will get all wrinkley looking) and there will be flames behind him. Pay close attention because the cinematic only lasts for about 2 seconds. *NOTE*: you have to be directly at the mirror, get as close to it as you can.

On the level Alpha Section 1 West when you find the scientist in the room with the crushing type machine go past the crusher and find the lost PDA. Drop down the hole and open the door and kill the enimies inside. Keep going until you reach the room with the two glass blue tubes. WARNING: MAKE SURE THE INVINCIBILITY IS ON. Two enimies will come in the room. Quickly shoot the two glass tubes and the room will burst into flames. If you look to your left you will see Counselor Swan running with his bodyguard. The flames will consume them and they will die and his guard will drop his BFG which you can pick up. On the next level when you are in the bathroom look in the mirror and pull out your BFG. Seeing as how this is a glitch and your not supposed to have the BFG yet it will look like your character is holding a large black box. Now whenever you fire you will shoot black box's and they will explode.