Deus Ex Walkthrough Majestic 12

September 12, 2016 (Last Updated: ) | Reading Time: 10 minutes

This Deus Ex walkthrough is divided into 20 total pages.

You can jump to nearby pages of the game using the links above.

Majestic 12

Deus Ex Walkthrough - Deus Ex 436
Deus Ex Walkthrough - Deus Ex 436

You are in MJ12 custody and your inventory is empty. Anna Navarre stops by your cell to gloat. You receive a transmission from someone - or something - identified as "Daedalus." The power to your cell is cut and the door opens.

Deus Ex Walkthrough - Deus Ex 437
Deus Ex Walkthrough - Deus Ex 437

MJ12 patrol the area. Sneak up to that crate ahead. On top you'll find a baton. Inside is a Riot Prod.

Deus Ex Walkthrough - Deus Ex 438
Deus Ex Walkthrough - Deus Ex 438

Use the Prod on the patrolling MJ12 to make your escape easier.

Deus Ex Walkthrough - Deus Ex 439
Deus Ex Walkthrough - Deus Ex 439

This DataCube reveals the detention block door code 4089 and the detention cells code 4689.

Deus Ex Walkthrough - Deus Ex 440
Deus Ex Walkthrough - Deus Ex 440

Use the code 4689 to enter this NSF prisoner's cell, named Miguel. He offers you a Medkit. You can have him follow you, but I prefer to have him stay put. You can rescue Miguel and earn 200 skill points.

Deus Ex Walkthrough - Deus Ex 441
Deus Ex Walkthrough - Deus Ex 441

In a neighboring cell is a Medbot and this dead NSF.

Deus Ex Walkthrough - Deus Ex 442
Deus Ex Walkthrough - Deus Ex 442

Hug the walls to avoid the security camera in the right corner, then exit as indicated. The door can be operated with the key code 4089.

Deus Ex Walkthrough - Deus Ex 443
Deus Ex Walkthrough - Deus Ex 443

Daedalus transmits a floorplan and informs you that your equipment is in the armory to the south, and Paul is in the lab to the north. You are awarded a Goal Accomplishment bonus of 250 skill points.

Deus Ex Walkthrough - Deus Ex 444
Deus Ex Walkthrough - Deus Ex 444

First things first. We need to get that equipment back. Head east then south through Robot Maintenance. Bust open the crate on the right for a Bioelectric Cell and a Scramble Grenade.

Deus Ex Walkthrough - Deus Ex 445
Deus Ex Walkthrough - Deus Ex 445

A single MJ12 patrols this lower level. Taking him out with your Prod makes movement much easier.

Deus Ex Walkthrough - Deus Ex 446
Deus Ex Walkthrough - Deus Ex 446

Recharge your energy at this Repair Bot.

Deus Ex Walkthrough - Deus Ex 447
Deus Ex Walkthrough - Deus Ex 447

Multitools rest on these crates and on identical crates nearby.

Deus Ex Walkthrough - Deus Ex 448
Deus Ex Walkthrough - Deus Ex 448

This worker can be bribed into selling the security login. If you have decent hacking skills it's best to keep your money. Ascend the stairs (inset).

Deus Ex Walkthrough - Deus Ex 449
Deus Ex Walkthrough - Deus Ex 449

More MJ12 patrol here. Keep their backs to you and proceed as indicated.

Deus Ex Walkthrough - Deus Ex 450
Deus Ex Walkthrough - Deus Ex 450

Knock out these two patrols with your Prod.

Deus Ex Walkthrough - Deus Ex 451
Deus Ex Walkthrough - Deus Ex 451

Read this DataCube to learn that the bots in this area use radar imaging.

Deus Ex Walkthrough - Deus Ex 452
Deus Ex Walkthrough - Deus Ex 452

You can hack the Security Panel (1) to alter the AI of the bot just off-camera through the bay ahead. Using the switch (2) will lower the bot to the level below. These actions would result in the deaths of the MJ12 patrols and is not recommended for pacifist play.

Deus Ex Walkthrough - Deus Ex 453
Deus Ex Walkthrough - Deus Ex 453

Sneak up on this guard and use your Prod on his exposed neck for a one-stun takedown.

Deus Ex Walkthrough - Deus Ex 454
Deus Ex Walkthrough - Deus Ex 454

On the desk is a lockpick and this DataCube with the Armory Code 2971. There are two EMP grenades on the nearby table.

Deus Ex Walkthrough - Deus Ex 455
Deus Ex Walkthrough - Deus Ex 455

Descend both sets of stairs back to the lower level. Ascend these stairs at the south end of the facility to the Armory.

Deus Ex Walkthrough - Deus Ex 456
Deus Ex Walkthrough - Deus Ex 456

Two large security bots patrol here, but they are slow and you can easily stay hidden behind them. Enter the code 2971 where indicated.

Deus Ex Walkthrough - Deus Ex 457
Deus Ex Walkthrough - Deus Ex 457

You earn a Progress Bonus of 150 skill points. Beware the security camera and guard. Ascend these stairs on the left.

Deus Ex Walkthrough - Deus Ex 458
Deus Ex Walkthrough - Deus Ex 458

Hack this Security Computer Terminal to deactivate the two Armory Bots outside. Press the "Security" tab to deactivate the security camera downstairs.

Deus Ex Walkthrough - Deus Ex 459
Deus Ex Walkthrough - Deus Ex 459

Grab whatever goodies you want from the tables.

Deus Ex Walkthrough - Deus Ex 460
Deus Ex Walkthrough - Deus Ex 460

With the security camera disabled, return downstairs and take out the MJ12 Troop with your Prod. Daedalus informs you that you have found your equipment. Hack the computer on this desk to learn the code to the security container upstairs - 5239. Inside you'll find a Plasma Gun (not for the stealth minded).

Deus Ex Walkthrough - Deus Ex 461
Deus Ex Walkthrough - Deus Ex 461

Take whatever you want. Use that small crate to help you reach the upper shelves.

Deus Ex Walkthrough - Deus Ex 462
Deus Ex Walkthrough - Deus Ex 462

Backtrack past Robot Maintenance to the Detention area. Hidden in the alcove on the right is a lockpick. Descend through the indicated grate in the background.

Deus Ex Walkthrough - Deus Ex 463
Deus Ex Walkthrough - Deus Ex 463

Turn right (east) then head north. Daedalus radios that you are beneath the Nanotech lab.

Deus Ex Walkthrough - Deus Ex 464
Deus Ex Walkthrough - Deus Ex 464

Stay left then exit up this grate.

Deus Ex Walkthrough - Deus Ex 465
Deus Ex Walkthrough - Deus Ex 465

Proceed through this doorway to the hall beyond. Atop those crates is a gas grenade.

Deus Ex Walkthrough - Deus Ex 466
Deus Ex Walkthrough - Deus Ex 466

Converse with this doctor to learn the Medical Area code 0199.

Deus Ex Walkthrough - Deus Ex 467
Deus Ex Walkthrough - Deus Ex 467

Continue down the Medical R and D hallway.

Deus Ex Walkthrough - Deus Ex 468
Deus Ex Walkthrough - Deus Ex 468

This MJ12 Troop is schmoozing the secretary. Knock them both out with your Prod. The secretary will sound the alarm if you don't knock her unconscious.

Deus Ex Walkthrough - Deus Ex 469
Deus Ex Walkthrough - Deus Ex 469

Ascend the north stairs to this office and a DataCube revealing the Login MJ12 and Password INVADER.

Deus Ex Walkthrough - Deus Ex 470
Deus Ex Walkthrough - Deus Ex 470

Pick the lock on this grate.

Deus Ex Walkthrough - Deus Ex 471
Deus Ex Walkthrough - Deus Ex 471

Follow the vent down a ladder. You'll emerge in the Surgery Ward - with Paul! He tells you to go ahead and he'll follow, plus Anna has her own killswitch stored on two separate UNATCO computers with the login "demiurge" and password "archon."

Deus Ex Walkthrough - Deus Ex 472
Deus Ex Walkthrough - Deus Ex 472

Daedalus transmits Paul's datavault image to Tracer Tong, and gives you the code to the exit door - 1125.

Deus Ex Walkthrough - Deus Ex 473
Deus Ex Walkthrough - Deus Ex 473

Approach the indicated doorway to earn 500 skill points. Read the DataCubes at (1) and (2). Before returning through the vent use the Medbot to repair any damage you may have.

Deus Ex Walkthrough - Deus Ex 474
Deus Ex Walkthrough - Deus Ex 474

For those not playing as pacifists: At the top of both the north and south stairs are these buttons you can use to unleash these Karkians on the MJ12. On the south side you can also access a Security Terminal with the login MJ12 and password INVADER to reverse the turret targeting.

Deus Ex Walkthrough - Deus Ex 475
Deus Ex Walkthrough - Deus Ex 475

Return to the Nanotech Lab. We want to get to the office (1) by returning through the grate we left earlier (2).

Deus Ex Walkthrough - Deus Ex 476
Deus Ex Walkthrough - Deus Ex 476

Descend through the grate then turn right (south). Make two lefts (east then north) to this grate. Beware the MIB and MJ12 before climbing above.

Deus Ex Walkthrough - Deus Ex 477
Deus Ex Walkthrough - Deus Ex 477

Use your Prod to knock out the MIB and take this MIB Agent Cabinet Key.

Deus Ex Walkthrough - Deus Ex 478
Deus Ex Walkthrough - Deus Ex 478

Scattered on the countertops you'll find a pack of Tranquilizer Darts, a DataCube with an image of Walton Simons' augmentations, and a DataCube with this Greasel dissection. Greasel's are located in the sewers beneath the facility and are also locked in cages. They can be very challenging for a lightly-armed player and I suggest avoiding them.

Deus Ex Walkthrough - Deus Ex 479
Deus Ex Walkthrough - Deus Ex 479

Use the MIB Agent Cabinet Key to open this file cabinet. Inside is a Multitool and this DataCube with all these Logins/Passwords. The upper-right drawer requires a lockpick and holds a DataCube with the Surgery Ward Code 0199 and the Login "psherman" and Password "raven."

Deus Ex Walkthrough - Deus Ex 480
Deus Ex Walkthrough - Deus Ex 480

Use the psherman/raven account on the nearby computer to read several emails and lower the force field around this Aggressive Defense System/Spy Drone Augmentation Canister.

Deus Ex Walkthrough - Deus Ex 481
Deus Ex Walkthrough - Deus Ex 481

Reenter the ventilation shaft. At the "T" turn left, then keep right.

Deus Ex Walkthrough - Deus Ex 482
Deus Ex Walkthrough - Deus Ex 482

Daedalus radios that you are beneath the Command Center.

Deus Ex Walkthrough - Deus Ex 483
Deus Ex Walkthrough - Deus Ex 483

Once the coast is clear, swipe this Gas Grenade then slip through the doorway directly ahead.

Deus Ex Walkthrough - Deus Ex 484
Deus Ex Walkthrough - Deus Ex 484

Beware the MJ12 and dog patrols. Enter the code 1125 into the indicated keypad to exit the facility.

Deus Ex Walkthrough - Deus Ex 485
Deus Ex Walkthrough - Deus Ex 485

Knock out this guard to find some Tranquilizer Darts.

Deus Ex Walkthrough - Deus Ex 486
Deus Ex Walkthrough - Deus Ex 486

Daedalus instructs you to exit to the helipad, and suggests contacting Jaime, Sam, Alex, Manderley and Anna -- you're at UNATCO HQ!

Deus Ex Walkthrough - Deus Ex 487
Deus Ex Walkthrough - Deus Ex 487

Talk to Jaime. You can choose to have him join you in Hong Kong or stay behind as your eyes and ears at UNATCO. If you have him meet you in Hong Kong you will get an Augmentation Upgrade later. If you have him stay at UNATCO he'll meet you in Paris and give you Gunther's killphrase.

Deus Ex Walkthrough - Deus Ex 488
Deus Ex Walkthrough - Deus Ex 488

Jaime gives you a Regeneration/Energy Shield Augmentation Canister. Use the nearby Medical Bot to install it and the Aggressive Defense System/Spy Drone Augmentation Canister obtained in the Nanotech Lab. My preference is to install Regeneration/Spy Drone.

Deus Ex Walkthrough - Deus Ex 489
Deus Ex Walkthrough - Deus Ex 489

Head over to Computer Ops and pay Alex a visit. He offers to give you the key to escape the lockdown - if you eliminate Anna. Grab a Multitool from the nearby countertop, a Bioelectric Cell and a lockpick from the storage locker (code 2001) and c600 from the secret subfloor.

Deus Ex Walkthrough - Deus Ex 490
Deus Ex Walkthrough - Deus Ex 490

Next up is Sam Carter. Sam opens the armory for you. Load up -- don't miss the Augmentation Upgrade Canister, which I use to upgrade Spy Drone to Tech Two.

Deus Ex Walkthrough - Deus Ex 491
Deus Ex Walkthrough - Deus Ex 491

Across the hall, access Gunther's computer with either his logon (ghermann/zeitgeist) or the logon you obtained from Paul (demiurge/archon). Decrypt part 2 of her killphrase, 'Woman'.

Deus Ex Walkthrough - Deus Ex 492
Deus Ex Walkthrough - Deus Ex 492

Finally, stop at Manderley's office. A cutscene plays with you, Manderley and Walton Simons.

Deus Ex Walkthrough - Deus Ex 493
Deus Ex Walkthrough - Deus Ex 493

After the cutscene, login to Manderley's computer using either his account (jmanderley/knight_killer) or the account Paul gave you (demiurge/archon) to decrypt part 1 of Anna's killphrase, "Flatlander". As you leave the office Manderley opens fire, but he's easy to outrun.

Deus Ex Walkthrough - Deus Ex 494
Deus Ex Walkthrough - Deus Ex 494

Time for your first kill. You were able to avoid killing Anna on the 747 and on the subway platform, but this time it's necessary. Anna must die so you can get the escape key from Alex. When you reach the top of the stairs you'll speak Anna's killphrase, and she blows up real good. Anna Navarre is the only character in the game whom you must kill.

Deus Ex Walkthrough - Deus Ex 495
Deus Ex Walkthrough - Deus Ex 495

Return to Alex and he'll give you the key. He also denies being Daedalus, but agrees to help you find out who Daedalus is.

Deus Ex Walkthrough - Deus Ex 496
Deus Ex Walkthrough - Deus Ex 496

Head back upstairs and use the key Alex gave you to escape through this door. Rush past the guard and receive a Progress Bonus of 165 skill points.

Deus Ex Walkthrough - Deus Ex 497
Deus Ex Walkthrough - Deus Ex 497

Gunther radios his intent to seek vengeance for Anna's death. Knock out this final guard to escape UNATCO HQ.

Deus Ex Walkthrough - Deus Ex 498
Deus Ex Walkthrough - Deus Ex 498

Make a final run through the bunker (code 0451) for supplies before boarding Jock's chopper for Hong Kong to end the level.

More Deus Ex Walkthroughs

This Deus Ex walkthrough is divided into 20 total pages.

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