Introduction

Doom 3 is an iconic first-person shooter and survival horror game that has captivated players with its intense action, an immersive storyline, and strategically placed locker codes. These locker codes unlock potent weapons, valuable items, and essential upgrades that help players conquer the demonic forces they encounter throughout the game. This comprehensive guide to Doom 3 Locker Codes provides an extensive list of codes for the base game and its DLCs, Resurrection of Evil, and The Lost Mission, along with general game tips to enhance your Doom 3 gameplay experience.

Base Game Locker Codes

Here are the locker codes for the base game of Doom 3, listed in order of appearance throughout the game.

• Mars City
  • Locker #001 next to the elevator: Code – 396
  • Locker #017 in Medical Lab: Code – 347
  • Locker in Weapons Storage Room: Code – 584
• Mars City Underground
  • Locker #023 in Energy Stabilization Unit: Code – 531
  • Locker next to valve control panel: Code – 842
• Administration
  • Locker #013 next to health station: Code – 586
  • Martian Buddy Cabinet: Code – 0508
• Alpha Labs
  • Locker #009 in Sector One: Code – 752
  • Locker #038 in Sector Two: Code – 409
  • Locker #039 in Sector Two: Code – 102
  • Locker #047 in Sector Three: Code – 123
  • Locker #048 in Sector Three: Code – 123
  • Locker #049 in Sector Three: Code – 123
  • Locker #064 in Sector Four: Code – 651
• Enpro Plant
  • Locker #063 in Theresa’s office: Code – 972
  • Locker in Plasma Storage: Code – 734
• Central Communications Tower
  • Locker #054 in Sentry Bot Control: Code – 246
• Waste Recycling Center
  • Locker #003 near the airlock: Code – 483
• Monorail: Facility Transport
  • Locker #054 in Security Office: Code – 142
  • Locker in monorail airlock: Code – 826
  • Locker #078 near gun turret: Code – 364
  • Locker #079 near gun turret: Code – 364
• Delta Labs – Level One
  • Locker #21D in Storage Room: Code – 298
• Delta Labs – Level 2a
  • Locker #112 in Records Office: Code538
  • Locker #901 with BFG: Code – 931
  • Locker #116 near Halon control panel: Code – 972
  • Locker #114 in Operations Server Room: Code – 715
• Delta Labs – Level 2b
  • Locker #103 in Maintenance Corridor: Code – 259
  • Locker #216 in Specimen Lab: Code – 624
  • Locker #217 in Specimen Lab: Code – 624
  • Locker #213 at the bottom of lift: Code – 371
  • Locker #666 in Analysis Control: Code – 372
  • Locker in Storage Area 07: Code – 725
  • Martian Buddy Cabinet: Code – 0508
  • Locker in the final room with arch-vile: Code – 463
• Delta Labs – Level Three
  • Locker #386 near large teleporter: Code – 836
  • Locker #387 near large teleporter: Code – 836
  • Locker #317 near teleporter control panel: Code – 841
• Delta Labs – Level Four
  • Locker #104 in Control Room: Code – 579
• Processing Distribution Center
  • Locker #452 near security checkpoint: Code – 571
  • The door of Lab A: Code – 627
  • Locker #669 in Lab A: Code – 468

Doom 3: Resurrection of Evil Locker Codes

Doom 3: Resurrection of Evil was the first DLC added to the game. It introduced three new areas containing lockers. Here are the locker codes for those areas:

• Erebus – Level Two
  • Locker #029 in Elevator Bay: Code – 516
• Erebus – Level Three
  • Locker #105 in Chemical Storage: Code – 769
  • Sarge’s double-barrel shotgun case: Code – 428
• Erebus – Level Four
  • Locker #407 in Main Office: Code – 937
  • Locker #408 in Main Office: Code – 937
• Erebus – Level Six
  • Locker #034 in Armory: Code – 134
  • Locker #035 in Armory: Code – 134
• Photo Labs – Sector One
  • Locker #042 in Storage: Code – 714
  • Martian Buddy Cabinet: Code – 634
• Photo Labs – Sector Two
  • Retracting Bridge: Code – 281
• Photo Labs – Sector Three
  • Locker #009 in Reactor Control Room: Code – 492
• Delta Labs – Unknown
  • Locker #116 in Specimen Lab: Code – 634

The Lost Mission Locker Codes

The Lost Mission was a DLC released several years after the game’s initial release. It added three new areas with lockers. Here are the locker codes for these areas:

• Enpro – Sector Two
  • Double barrel shotgun display case: Code – 731
• Underground – Part One
  • Locker #054 in the first room: Code – 631
• Underground – Part Two
  • Locker #108 in the second revenant room: Code – 847
• Exis Labs – Part One
  • Locker #104 in Security Office: Code – 579
  • Locker #965 in Teleporter Security: Code – 428
  • Locker #071 in Bruiser room: Code – 532
• Exis Labs – Part Two
  • Locker #805 in Central Operations Room: Code – 372
  • Locker #806 in Central Operations Room: Code – 372

General Gameplay Tips for Doom 3

To master the world of Doom 3 and elevate your gameplay experience, consider the following tips:

• Conserve ammo: Ammo can be scarce, so use melee attacks on weaker enemies and save your high-powered weapons for stronger foes.
• Explore: Search every corner of the environment to discover hidden items, health, and ammo to help you in your journey.
• Quick save: Doom 3 can be pretty challenging, so save regularly to avoid losing progress when you die.
• Weapon selection: Choose the right weapon for the right enemy. Knowing the strengths and weaknesses of each weapon will help you survive encounters with various demons.
• Listen: Pay attention to in-game audio cues. They can help you detect approaching enemies and even reveal hidden secrets.
• Use caution: Move slowly through unexplored areas and watch for traps or ambushes. This will help you avoid being caught off-guard by enemy attacks.
• Manage health and armor: Partially used health and armor items remain available. If you’re just a few points from total health or armor, don’t forget those leftover items you didn’t use earlier.
• Use the flashlight wisely: Lighting in Doom 3 is intentionally limited, so use your flashlight to aid in exploration, but be aware of its limited battery life. You can’t always have a weapon and the flashlight active simultaneously, so be prepared to switch between them as necessary.