Walkthrough

Water Prison World 2nd Time

"That guy, the fat one, took the basement key. Next time I'll stick this triangle sword into that pig and take the key."

Complete maps

Roof

Note the Portal on the wall and exit on the other side after unlocking the door. Out here, Walter has his gun trained on you at the bottom of the screen, so quickly run past him before you're shot at. The gate to the outside walkway is just past him, so wait a brief moment for Eileen and pass through.

Exterior Walkway

Eileen can't take the ladders but you can and she'll just run to catch up, so don't feel compelled to escort her. Consider unequipping her weapon though so she doesn't try to engage any Hummers. Head down the ladder, wait for Eileen and enter the third floor cellblock.

Note that if you just stand by the ladder or door on 3F, Walter won't enter the area yet, but he will if you move a bit away. So wait patiently for Eileen. Even if he does come, he probably won't be a factor.

Third Floor Cellblock

To Henry's right is a Twin Victim pointing fingers, as well as two more in the corridor. Consider beating them down with Eileen. Checking the cells, Toadstools guard a Nutrition Drink on the bed in the 7 o'clock cell, Pistol Bullets are on the stand in the 8 o'clock cell, and there's a Holy Candle in the 2 o'clock cell on the other side.

Note on cell navigation:
Just like the first time, I'll refer to cell locations by their position on your map relative to a clock face as shown below.

Now you can proceed down to the 2F and 1F cellblocks with Eileen, but eventually you'll find the door to the basement in the small Portal room on 1F is locked. So you'll have to use the same trick as before to reach the basement – jump down the cell holes.

That means leaving Eileen for a bit. Just make sure you leave her in the cell you jump down from so she's away from any enemies. Remembering before, the 1 o'clock cell on each floor contains a hole (with the bloody bed as well) so enter that cell on 3F and jump all the way down to the basement.

Inner Basement

Once you land in the kitchen on B1, turn around and go through the double doors. Walk over the small bridge to find a 60 Prisoner's Shirt on the floor, with something written on it in wax. Henry comments, "Maybe if you soak it in some kind of colored liquid..." in its description. Remember anything in your apartment?

Now pass back through to the dining hall on the other side. Clear the path of Whitestools and grab the Nutrition Drink on the table. Also note there's an easy-to-miss Saint Medallion on the bench near where the Whitestools were (you'll need to change the angle with L2 to see it). Then exit to the hall after unlocking the double doors there.

In the shower room across the hall you'll find Pistol Bullets past some Whitestools. More Whitestools block the ladder to the surveillance room. While you don't need to (and can't) turn the cells anymore, you can find a 61 Nightstick weapon for Eileen on the 3F floor up there. Exit to the hall.

Interior Basement Stairway: Unlocking the 1F Door

Instead of heading down to B2 just yet where the generator room is locked anyway, let's unlock the door to the 1F Portal room, clear some inventory space and find some coloured liquid in our apartment, and then retrieve Eileen. So head up the nearby ladder, unlock the door and pass through.

First Floor Portal Room

Grab the Nutrition Drink left of the Portal on the wall. Remembering the Prisoner's Shirt you just picked up, return to your apartment through the Portal.

Retrieving Eileen

Remember that you don't want to keep Eileen alone for too long, so let's go retrieve her before we do anything else. She should be in the 1 o'clock cell on 3F if you left her there earlier. Otherwise, find her red arrow on the map and retrieve her. If you'd rather do your searching alone and then retrieve Eileen later, go ahead but understand that minimizing her time alone is in her best interest.

Now head to the second floor. Descend the ladder and wait for her to run around the exterior, then enter the cellblock.

Second Floor Cellblock

Four Twin Victims await around the cellblock so consider taking them out to start off. Don't worry about the Tremers on the walls here and elsewhere. You'll find the drinks with "black things" (black powder) in the 7 o'clock cell. Check the bed to find a Sword of Obedience under it. You actually don't need this exact sword which is just one of five in the game, but you will need to use one shortly.

Otherwise, a Twin Victim guards Pistol Bullets in the 5 o'clock cell and another one guards a Holy Candle in the 11 o'clock cell if interested.

Make sure Eileen is with you and take the outside ladders down to the first floor. Wait for her to run around the exterior and proceed inside the 1F Portal room. If Walter does come around, you can just climb back up the first ladder and wait on the small platform to avoid confrontation.

From the Portal room, the first floor cellblock is an optional trip with a few items to collect while facing a few enemies. Otherwise, skip ahead to the basement stairway.

First Floor Cellblock

Here you'll face a combo of Twin Victims and Hummers. A pack of Pistol Bullets awaits in the 5 o'clock cell, a Holy Candle in the 10 o'clock cell, and a Nutrition Drink in the 7 o'clock cell.

Return to the Portal room and make sure you have the Pistol, a Silver Bullet, and a Sword of Obedience before proceeding to the basement stairway with Eileen.

Interior Basement Stairway: Facing "The Fat One"

If you've already read what was on the Prisoner's Shirt, a cutscene will play here of "the fat one" who stole the basement key – it's Andrew DeSalvo, Victim 18. You'll have to face him to get his key. First you'll need to beat down some Whitestools blocking the path in a few spots to reach him. Then prepare for a mandatory fight.

Now with the key, follow the rest of the path past any more Whitestools and proceed into the B2 waterwheel room.

B2: Escaping the Water Prison with Eileen

Head down the stairs and note the Portal on the other side of the waterwheel, as well as a Portable Medical Kit on the ground near it. Find the door near the end of the stairs you came down and pass through it with the Water Prison Generator Room Key.

Take a step forward and try not to wet your pants. Quite the sight, eh? These six Twin Victims won't start approaching until you move closer, and you can bring them in smaller groups one or two at a time if you move bit by bit then retreat. You also have a choice of heading back and ditching Eileen in the big room if you want to avoid her taking damage, but she can help you beat them down too, especially with the Chain or Nightstick.

Either way, fire away with the Pistol or bash some heads in with the Rusty Axe or whatever else you've got. Be sure to stomp any enemy that falls asap, including those Eileen knocks over. Then pass through the now normal-sized end door with Eileen.

Below Water Prison World

Navigate down the same old spiral staircase, this time finding a kinky mannequin hanging upside-down along the way if you're taking in the sights. Find the Portal near halfway, empty any items you don't need and head through the door at the bottom with Eileen.