Enigma code solutions
At the main menu, select the "Extras" option, and choose the "Enigma Codes" selection. Then, enter one of the following codes to unlock the corresponding bonus mode and trophy. Note: You must collect all the enigma code pieces for a code throughout the main missions of the game before you can enable it.

Code 1

Enter the following code under "Code 1" to unlock 999 mode (Uber difficulty, 999 health, infinite ammunition) and the "Secrets Revelead I" trophy. Note: This code is obtained from all enigma code pieces starting with the numbers 1 and 8.

01, 02, 03, 04, 05, 06, 07, 08, 09
08, 07, 06, 05, 04, 03, 02, 01, 09
Code 2

Enter the following code under "Code 2" to unlock Walk In The Park mode (I Am Death Incarnate difficulty, HUD disabled) and the "Secrets Revelead II" trophy. Note: This code is obtained from all enigma code pieces starting with the numbers 2 and 7.

02, 04, 06, 08, 01, 03, 05, 07, 09
07, 05, 03, 01, 08, 06, 04, 02, 09
Code 3

Enter the following code under "Code 3" to unlock Hardcore mode (Uber diffculty, all health and armor drops disabled) and the "Secrets Revelead III" trophy. Note: This code is obtained from all enigma code pieces starting with the numbers 3 and 6.

03, 06, 09, 03, 06, 09, 03, 06, 09
06, 03, 09, 06, 03, 09, 06, 03, 09
Code 4

Enter the following code under "Code 4" to unlock Ironman mode (Uber difficulty, one life) and the "Secrets Revelead IV" trophy. Note: This code is obtained from all enigma code pieces starting with the numbers 4 and 5.

04, 08, 03, 07, 02, 06, 01, 05, 09
05, 01, 06, 02, 07, 03, 08, 04, 09
Wolfenstein 3D level
In Chapter 4, meet Anya in the Resistance secret base. After the helicopter theft, go upstairs to the top floor and search for a room with an old mattress on the floor near the window. Interact with the bed, and select the option to enter a nightmare to play a level from Wolfenstein 3D.

All collectible locations
Search the indicated locations to find all 72 enigma codes, 50 gold items, 10 letters. Note: You can search for missing collectibles through chapter select at any time during the story or after completing the game. It also does not matter if you are playing the Fergus or Wyatt timeline. The only difference between the timelines is that you can either pick locks or hack circuits, but the levels are the same and collectibles are unaffected. Stealth killing commanders will mark some collectible locations on your map with a question mark. However, this does not reveal all collectible locations. There are areas that do not have a commander or side quests that must be completed to get an item. As soon as you pick up a collectible, it will immediately be saved. Thus, you do not have to reach the next checkpoint for it to save the collectible. Additionally, if you start a completely new game, your collectible progress will still carry over. You can view how many collectibles you have obtained in each level under chapter select. Each collectible has its own specific name, making it easier to identify what you are missing. To see their names, open the collectibles menu during a mission.

Chapters 1-4



Chapters 5-8



Chapters 9-12



Chapters 13-16



Fallout 3 reference
In Chapter 7, Anya will ask for a sample of the moldy "Super Concrete". Look to the right of the Kreisau Circle Hangar entrance, and locate the large red circular door covered in steam. It is marked with "101", referencing Vault 101 and its huge circular door in Fallout 3.

Trophies
Successfully complete one of the following tasks to get a trophy:

Wolfenstein master (Platinum): Collect all trophies.
Liberation (Gold): Complete game on any difficulty.
Super hero (Silver): Complete game on I AM DEATH INCARNATE! (or ÜBER).
Über hero (Silver): Complete game on ÜBER.
All that glitters (Bronze): Collect 25 gold items.
Heart of gold (Silver): Collect all gold items.
The lives of others (Bronze): Collect all letters.
Secrets revealed I (Silver): Solve the first Enigma code.
Secrets revealed II (Silver): Solve the second Enigma code.
Secrets revealed III (Silver): Solve the third Enigma code.
Secrets revealed IV (Silver): Solve the fourth Enigma code.
Scout I (Bronze): Unlock stealth perk 1.
Knife throwing (Bronze): Unlock stealth perk 2.
Knife sheath + (Bronze): Unlock stealth perk 3.
Knife sheath ++ (Bronze): Unlock stealth perk 4.
Silent shot (Bronze): Unlock stealth perk 5.
Vampire (Bronze): Unlock stealth perk 6.
Scout II (Bronze): Unlock stealth perk 7.
Assassin (Silver): Unlock stealth perk 8.
Deadeye (Bronze): Unlock tactical perk 1.
Quick draw (Bronze): Unlock tactical perk 2.
Quick regeneration (Bronze): Unlock tactical perk 3.
Gun magazine + (Bronze): Unlock tactical perk 4.
Shotgun magazine + (Bronze): Unlock tactical perk 5.
AR magazine + (Bronze): Unlock tactical perk 6.
Marksman magazine + (Bronze): Unlock tactical perk 7.
Quick reload (Silver): Unlock tactical perk 8.
Double reload (Bronze): Unlock assault perk 1.
Endurance I (Bronze): Unlock assault perk 2.
Scavenger (Bronze): Unlock assault perk 3.
Bullet feeder (Bronze): Unlock assault perk 4.
Endurance II (Bronze): Unlock assault perk 5.
Autopanzer (Bronze): Unlock assault perk 6.
LKW battery + (Bronze): Unlock assault perk 7.
Dual-wield expert (Silver): Unlock assault perk 8.
Throwback (Bronze): Unlock demolition perk 1.
Grenade pouch + (Bronze): Unlock demolition perk 2.
Grenade pouch ++ (Bronze): Unlock demolition perk 3.
Bullseye (Bronze): Unlock demolition perk 4.
Rocket magazine + (Bronze): Unlock demolition perk 5.
Vaporize (Bronze): Unlock demolition perk 6.
Sentinel (Bronze): Unlock demolition perk 7.
Hardened (Silver): Unlock demolition perk 8.
Additionally, there are eight secret trophies:

Gunner (Bronze): Save allied planes.
Fergus saved (Silver): Choose to save Fergus.
Wyatt saved (Silver): Choose to save Wyatt.
Vive la resistance! (Bronze): Locate the resistance.
Power to the laser (Silver): Find the Laserkraftwerk.
Hidden in the deep (Bronze): Locate the underwater stash.
London uprising (Bronze): Defeat the London Monitor.
Deliverance (Silver): Release friend