E1M3: Sewage Treatment Plant

Sewage Treatment Plant is the third mission in HROT Episode 1 — Kiss Me Gustav, where the Player is introduced to three new enemies. Two of these are quite tough, and one of them the first non-secret miss-able enemy in the game.

# Walkthrough

The Player enters Sewage Treatment Plant dropping into the water, having fallen through the drain at the end of Luna. Drifting to the bottom you will come to two planks over a recess, which contains a Soviet Shotgun.

Swimming to the surface, you will reach a water course that leads to a T-intersection, with branches to the left and right. On the wall ahead is a sign which reads **Prague Sewage Treatment Plant** (**Kanalisační Čistírna Města Prahy**) with a date beneath it, **1906**.

Follow the water course to the right towards a ladder that leads to a railed ledge, guarded by a Smaskou. At the top of the ladder there is a bag of Pickups, a square opening into a hallway beyond the wall, and an exploding barrel.

Follow the ledge to an archway that leads to another part of the sewer, where there is another exploding barrel. The landing beyond is bounded by another water course, and has an entrance to some stairs blocked by a bollard. It guarded by and two Hazmat Suits who want to see your papers, while a Kejdovec on a landing above is flinging grenades out of boredom.

Jump into the water course and swim through an opening to another landing, where a bag of Pickups, a Smaskou, and valve are waiting for you. Proximity to the Pickups opens a sliding panel to reveal a Kejdovec who was having a nap.

Turn the valve to open access to a ladder and jump in the water course immediately opposite the valve. Follow the water course until you reach the ladder, greeting two Smaskous along the way, and passing by the first secret. Climb the ladder and meet another Hazmat Suit and the bored Kejdovec who do not think you should be up here. Round the corner, and come to a room blocked by two bollards, and a ventilation duct.

Break open the ventilation duct, and follow it to the end, where you will have to jump across the water course below to get to the second half. There you will encounter two more Hazmat Suits in a hallway that appears to be blocked. As you approach it, the stone wall will slide down, showing it to be an elevator carrying yet another Hazmat Suit.

Press the elevator button and you will be lifted to the room whose entrance is blocked by two bollards. Take the Hussite Hand Cannon that is waiting for you, which will open a sliding panel at the back of the room, where two Smaskous emerge.

Flip the switch on the wall to open the bollards, and a sliding wall on the other end of the catwalk will open, where two Smaskous are lurking. There is another button beyond the wall. Press it to open the bollard blocking the entry to the stairs on the landing below. A Hazmat Suit will emerge from the staircase to find out who has done this.

Follow the stairs down to a flooded hallway, where you will meet another Smaskou coming through an archway at the other end. Follow it around until you reach a room with two planks covering a recess and the Rusted Key. There is also a nearby entrance to the second secret.

Across the room, the first archway on the right has stairs going up to a landing in front of a pool, which has a drainpipe near the ceiling emptying into it. A Smaskou appears from his sentry box to inform you there is no swimming in this area. Across the pool at a higher landing you will see the Common Key, and an entrance to another water course. Hold your nose and jump into the sludge, noting that it is not affecting the ability of two Becva to get around.

Follow the water course around until you come to another pool with a catwalk bridge that crosses it, and another Becva. On the landing that overlooks the pool is a Kejdovec and Hazmat Suit who are irritated by your flouting of the rules, along with two valves at opposite ends of the landing. A ladder leads to a ledge connected to one side of the bridge, where another Hazmat Suit is lurking, along with a Medkit and some shells.

Turn each valve and get ready to meet three of the newest enemy, Konfident. This unusual enemy appears as a floating head that mutters something soft and cryptic under its breath. It also shoots rays from its eyes that do a lot of damage, so it is your duty to not get in the way of them.

Across the catwalk bridge are three more Smaskous who are patrolling near the Aluminum Key door. Follow the hall to the end and climb the ladder to reach the exterior of the treatment plant. You will find yourself at the foot of some stairs. To the left is a door that leads to a small shed, and at the top of the stairs, a Miner coming to greet you. Inside the shed you will find a knapsack and some Tasty Canned Chicken.

Ascend the stairs to reach the plaza around the treatment plant, where there are several enemies patrolling the grounds. At the top of the stairs, you will see the Rusted Key door directly opposite. Proceed inside and around the corner to a landing with two Hazmat Suits, overlooking a large open area with a belt and lineshaft system spinning away furiously.

There is a ladder that leads into the pit below that contains another Hazmat Suit. The third secret is nearby on a ledge opposite the landing. A switch on the wall will open both the single door to the left, and the double door in the pit below. Pass through the single door to the entrance hall of the plant where a Smaskou is guarding a large industrial cylinder. There is also a bottle of Red Wine, 5 koruna, and the entrance to the fourth secret.

Exit through the Rusted key door and wander around to the other side of the plaza where you will encounter three Hazmat Suits and two Smaskous, passing by a sign on the side of the plant that says **Long Live the Homeland!** (Vlasti Zdar).

There is also a skid-steer Loader tucked away in a corner, next to two cans of Tasty Canned Chicken and some ammunition. This is a miss-able enemy that will not engage until the Player is in close proximity. Be ready when you approach, and be sure to have some grenades on hand for this persistent enemy.

The other side of the plaza contains a Medkit near an electrical panel on the side of the building just above a door. Shoot it to open a panel to an observation bunker directly behind you. In the bunker you will discover a Smaskou to the left who is guarding the Aluminum Key. Once you have the key, a panel will open facing you with a Kejdovec who wants you to return what you have taken.

With the Aluminum Key in your possession, pandemonium breaks loose, teleporting a horde of enemies into the arena, including a Helicopter which is firing .50 bullets in your general direction. Once the Helicopter is dispatched there are still a couple of waves of Miners, Kejdovecs, Hazmat Suits, and Smaskous who will do their utmost to keep you entertained.

Return to the room with the pit. Jump down and proceed past the Common Key lock, which is next to an anteroom overlooking a pool blocked by two bollards. Continue through the now open double doors that lead back to the room with the catwalk bridge.

Cross the bridge and open the Aluminum Door, where the room inside has a Miner rushing at you with a special-delivery explosive. There are two lockers with a pail of Soup Main Course Cake. On the floor is an interactive Nu Pagodi console game, and the Common Key on a ledge above the pool you swam through earlier.

Return to the Common Key lock and open it. Inside the anteroom is a Medkit along with a switch that will open a floor panel beneath the belt and lineshaft in the pit. Another Miner will appear to persuade you not to leave.

Jump into the open floor panel and proceed along the utility tunnel beneath a turning shaft, where you will be greeted by an S.U.P. At the end of the tunnel is a ladder, and two bollards will open to offer you a Soviet Shotgun. Climb the ladder to reach the AZ-5 button and end the level.

**Previous:** E1M2: Luna

**Next:** E1M4: Sokol Gym

# Secrets

### Secret 1

In the water course area, once the Player has turned the valve to uncover the ladder, jump back down through the opening opposite the valve. Walk forward, and before the turn to the left, in the there is a cracked wall on the right hand side. Blow it open to get a Submachine Gun.

### Secret 2

In the room with Rusted Key beneath two boards, there is a stone switch on the back wall to the left. Click it, and an arched recess will open straight ahead on the left, releasing a Miner who will run towards you. Inside the recess you will find the first super weapon, the Lightning Gun.

### Secret 3

Past the Rusted Key door is a large open room with a belt and lineshaft system, and a ladder that leads down to a floor below. On the right, there are two recessed areas at the same level as the platform on which you entered. Jump to the first, then swing jump around the wall that separates you from the second recess to find a Medal.

### Secret 4

Inside the first room past the main entrance to the treatment plant, the one with the giant cylindrical device, there is a shield on the wall in the left corner as soon as you enter. Interact with the shield to open a panel that reveals a button. Press the button, and on the opposite wall ahead, a sliding wall will open, releasing a Kejdovec who is guarding a second Pistol.

# Speedrunning

Main article: Speedrunning
* You can use a Grenade jump to boost around a corner, skipping the Aluminium Key door and collecting the Common Key earlier than intended.

# Lore

* The old sewage treatment plant in Prague - Bubeneč is an important document in the history of architecture, engineering and water management. It is the oldest sewage treatment plant in Prague, designed by William Heerlein Lindley, and built between 1895–1906 as the last systematic sewerage network in Prague. It was responsible for cleaning the majority of Prague’s wastewater until 1967. In 1991 whole building was declared a protected national monument and has been converted into the Eco-technical Museum.

* The Vlasti Zdar sign is a reference to the use of the Czech word, zdar ("Success"), as a common add-on term: "(fill in the blank) zdar!" The developer made the model of the sign from one hanging on a gate on his grandfather's barn.

* Nu Pogodi, Russian for "Well, Just You Wait!", is an animated series produced by Soyuzmultfilm featuring the comic interactions of the Wolf and Hare. In 1984, an LCD game of the series was released under the Electronika brand. Playing this in-game can earn the  Just You Wait achievement.

# Gallery

Inside Bollard RoomInside the PlantKejdovec on a ledgeOverlooking the PoolPlant ClockPlant Exterior FrontPlant Exterior Side