Chapter 1: An Emergency Call

NOTE/TIP: This walkthrough is written for the 'Survival' (medium) difficulty. It is recommended to start on this level, since beating the game unlocks the difficulty that comes after it.

Watch the opening cutscene and head inside the building. All you have to do is make your way to the security room to trigger another short scene. Needless to say, you're in big trouble afterwards.

Take a look around, then swing your way towards the knife stuck in the corpse hanging before you to release yourself. Enter sneak mode and move toward the ugly-as-hell executioner. As he moves away, it is actually possible to move behind him and stab him in the back, HOWEVER, this won't kill him and he'll have his revenge on you soon enough. So instead of backstabbing him, collect the keys hanging near the table and backtrack to the first room. There's a door on the side; head through there. Phew - finally safe, right? [C]

Not quite! As you move on you'll automatically trip the alarm. Run toward the end of the hallway. Then, in the next room, move through the middle and open the hatch at the end. When sliding down, avoid the grinders by moving left and right until you reach the bottom. Climb out of the bloodbath and move through the door on the other side. [C]

Chapter 1 Walkthrough

At the intersection, simply move right (the left side only leads to a dead end), hop into the water and climb the nearby ladder on the other side. Move to the body inside the wheelchair and pick up the [OLD NOTE FROM SEWER] lying beside him. There's no need to go through the first door on the right (which you already passed by); it's a dead end. The gates up ahead are locked tight. Move through the nearby doorway and up the ladder. Inspect the desk with the monitor to find the [BOILER ROOM NOTE]. Press the right button next to the door and move through the hallway. [C]

When the executioner appears, enter the locker in this room. When he's moved on to the next area, follow him and sneak past the first intersection when he's looking away. You'll want to stay low so he can't see you. Around the corner, about halfway down the hallway is a doorway to the left; the executioner will stay in the adjacent room however, so what you want to wait for is for him to move to the far right of the room (behind the medical curtains) so you can sneak past him to the next area up ahead. You can grab a [BOTTLE] from the table here, then sneak to the end of the area, heading through the door at the end. [C]

Now it's just a matter of quickly moving through halls until you exit the building safely.