Doom 3 Security Codes and Cheat Codes is the final part in the complete Doom 3 walkthrough revealing the Security Codes and Cheat Codes that can be used in the game.
Security Codes
Below are the security codes for every locker/cabinet in the game, including the Martian Buddy lockers. They're listed by locker/cabinet ID number, with its location and contents, then the security code in bold.
Security Locker/Cabinet
001:Mars City - Bullets - code 396
003: Recycling 2 - Armor, Clips, Grenades, Plasma Cell - code 483
009: Alpha Labs 1 - Armor, Clip, Grenades, large Medkit - code 752
013: Administration - Armor, Clip, Grenades, Shells - code 586
017: Infirmary - Armor, Clip, large Medkit, Shells - code 347
023: Mars City Underground - Armor Shards, large Med Kit, Shells - code 531
038: Alpha Labs 2 - Armor, Clip, Grenades - code 409
039: Alpha Labs 2 - Armor, Clips - code 102
047: Alpha Labs 3 - Clips, Grenades - code 123
048: Alpha Labs 3 - Ammo Belt, large Medkit, Plasma Cell - code 123
049: Alpha Labs 3 - Armor Shards - code 123
054: Communications - Armor, Grenades - code 246
054: Monorail - Armor, Grenades, Rockets - code 142
063: EnPro Plant - Plasma Cell, Plasma Gun, small Medkit - code 972
064: Alpha Labs 4 - Armor Shards, Clip, Plasma Cell - code 651
078: Monorail - Clips, Grenades, large Medkits - code 364
079: Monorail - Clips, Grenades, large Medkits - code 364
103: Delta Labs Level 2B - large medkit, Plasma Cells, Shells - code 259
104: Delta Labs Level 4 - Ammo Belt, Armor, Rockets - code 579
112: Delta 2A - Armor Shards, Plasma Cells, Shotgun - code 538
114: Delta 2A - Armor, Backpack, Clip - code 715
116: Delta 2A - Armor, BFG Cell, large Medkit, Plasma Gun - code 972
116: Delta 2B - Bullets, Plasma Cell, Shells - code 624
117: Delta 2B - Armor, BFG Cell, Grenades - code 624
213: Delta 2B - Clip, Plasma Cells, Shells - code 371
21D: Delta 1 - Armor, Grenades, large Medkit, Rockets - code 298
317: Delta 4 - Armor, Bullets, Clips, large Medkits, Rockets - code 841
386: Delta 3 - Ammo belt, Bullets, Clip, large Medkits - code 836
387: Delta 3 - Armor, Clip, Grenades, large Medkit, Rockets - code 836
452: CPU Complex - Grenades, Rocket Launcher, Rockets - code 571
666: Delta 2B - Armor, Imp - code 372
669: CPU Complex - Armor, Grenades, Plasma Cells - code 468
Martian Buddy Locker
001: Administration - Ammo Belt, Armor, Chaingun - code 0508
002: Delta 2B - Armor, BFG - code 0508
Cheat Codes
- These are the cheats for Doom 3 - level skipping, God Mode, the like. Also listed are cheats for Ultimate Doom and Doom II, which include God Mode and getting all the Keys, weapons, and ammo instantly (some of you probably remember that, for Doom II, it was "IDKFA"...). All cheats are entered during gameplay, while holding down the Left Trigger.
Doom 3 Codes
- Level Skip: B, A, X, Y
- God Mode: X, Y, B, A (You'll still be able to fall to your death)
Ultimate Doom and Doom II Codes
- All Keys, Weapons, Ammo: A, B, A, B
- Berserker: X, X, X, Y
- End Level: A, A, B, B
- Chainsaw: B, B, A, A
- Weapons and Ammo: B, B, B, B
- God Mode: A, A, A, A
- Invisibility: X, X, Y, Y
- Light Amplification Goggles: Y, Y, Y, X
- Radiation Suit: X, Y, Y, Y
- Show All Map: Y, Y, Y, Y
- Temporary Invincibility: X, X, X, X
