1 - Turn On Power

This will require you to find the power handle and build it. The power handle will be glowing and is hard to miss. It can be at the top of the ladder in middle stair case, in the back of the room full of pipes on the 5th floor, or just after walking through the air ducts on floor 4.

2 - Flip 4 Red Trap Levers

For this step you will need to learn what order to flip the red levers in as it changes every game. The way to test them is after flipping a red lever once, try to flip it again. If it doesnt move, it is correct. Go find the next one. You have to do this with each lever. If a lever can be flipped twice, you must start over from the first one. Levers locations: Near the helicopter pad, in the middle stair case next to a perk, on the top floor in between two cabinets, and on the 5th floor in between the office and the middle stair case next to a perk.

3 - Enter Symbols In Power Room Computer

After step 2 is done correctly the computer in the power room will become interact-able. For now, you'll have to guess symbols until you get them correct. We have a hunch that there are a few possible correct combinations that change each game. Otherwise we dont know how to know the combo for sure. One of them is Square, Z, Triangle. Another is blank, blank, blank. If these combos dont work you will have to guess until you get a green border around the symbols showing that you have gotten it correct. It is possible to have a blank screen as one of the entries.

4 - Simon Says

There will be 3 computer locations around the map that you will have to play simon says at. One is on the way to the crane at the 6th floor. One is near a large hole in the floor on the 7th floor just across from the first location mentioned. The final one is on the 5th floor on the right side of the room with all the pipes. You should listen for a beep and watch for a colored light. This will indicate which panel to press. Note panels are on opposite sides so sometimes you have to rely on sound alone.

5 - Open 4 Blue Crates To Collect Bandages

This is the most complicated step. After playing simon says, there will be a computer screen lit up nearby with a grid pattern and a square on it. This will be at all 3 simon says locations. The square on the grid indicates a number that has to be inputted into the blue crates in order to get them to open. Three dots on the left = 4. Three dots in the middle = 2. Three dots on the right = 1. Once you have all 3 numbers from the grids input them into all of the blue crates by pressing use and pausing after completing one number input. Example 4-1-2 = Beep beep beep beep............beep...............beep beep

6 - Obtain 4 Bandages

Pick up the 4 bandages you receive from opening the blue crates. 4th floor near spawn. 5th floor just outside the office. On the crane. Near the helicopter pad.

7 - Place the bandages at the 4 "X" locations Around The Map

Press use to place the bandages at the x's on the floor. 4th floor in front of a perk. 5th floor in the office. 6th floor inside the building that leads to the 7th floor. 6th floor inside a computer room near the ladder.

8 - Fill Souls At The 4 Locations

After placing the bandages a pentagram will appear with candles. Take damage inside the rings to activate them. The candles will light up. Kill zombies and the circle will begin collecting souls.

9 - Do All Dead Man Trials (5) (This Can Be Done Anytime During The Playthrough)

You will now need to click use on 5 bodies around the map that will present you with a challenge to complete. Each challenge has 3 levels of difficulty and each one must be done. Body 1: Underneath a cubicle in the office area. Body 2: Hanging in a window on the 5th floor in the room with all the pipes. Body 3: On the 6th floor near the helicopter pad on the ground. Body 4: On the 6th floor inside the middle building next to a white board, and a perk. Body 5: On the 4th floor near a flare just after passing the path to the air ducts.

10 - Flood The Map

A fireball will appear at each soul box when completed. You will need to flood the map to put out the fireballs. This ties into the trials easter egg. After completing all trials, activate the final trial on the 7th floor in the middle at the captain's control room. It is recommended to make your way to the crane so you do not drown. The water will get very high. After getting the required kills, the water should go down, and this will open pack a punch as well as leave you with an elemental bow at the captain for a reward, as well as put out the fires at the soul boxes.

11 - Find The Black Hole/ Void

One of the 4 soul box locations will now have a black hole on it. Find it. Have a zombie hit you inside the ring. This will activate the boss fight.

12 - Boss Fight

Fill 3 soul collectors. Make sure to take damage on top of the soul collector to activate it. Then it will begin filling. After this, the boss's shell will burst and you must damage him. Repeat this step 3 times until you defeat the boss fight. Note - barriers will come down in between the areas that you will have to deconstruct to gain access again. Beware of the boss's charge attack.

Congratulations! You Win!