E2M4: Waste Treatment (Doom the Way id Did: The Lost Episodes)

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DtWiD: The Lost Episodes maps
Knee-Deep in the Dead

M1 M2 M3 M4 M5 M6 M7 M8 M9

The Shores of Hell

M1 M2 M3 M4 M5 M6 M7 M8 M9

Thy Flesh Consumed

M1 M2 M3 M4 M5 M6 M7 M8 M9

Base Instinct

M1 M2 M3 M4 M5 M6 M7 M8 M9 M0

The Final Gate

M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E2M4. For other maps which occupy this slot, see Category:E2M4.

E2M4: Waste Treatment is the fourth map of episode The Shores of Hell in Doom the Way id Did: The Lost Episodes. It was designed by Jacob Zuchowski (ellmo).


Map of Waste Treatment
Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.


Head north across a bridge to dispose of some zombiemen, then head west and south down some steps until you cross a nukage trench and enter a junction with some zombies - note the blue key door here as it leads to the exit. Walk west across another nukage trench and turn left to go through a door, then kill a cacodemon waiting in the next room before proceeding east through another door. Kill the approaching imps and demon then go round to the east side of the thin column in front of you to find a button, which will lower a teleporter behind you, then climb the steps on the north side of the room to reach the teleporter. Use the teleporter to go to a neighboring room to the south-east, then press the gargoyle switch in front of you to lower it and reveal a hole. Drop into the hole (which will raise steps leading back up to the teleporter) then turn right to see steps going up to the red keycard.

From the red key, go north past a demon to a red door and open it, then flip the switch in front of you to go down to the floor below. Follow the passage to a moving platform and ride it up, then push past a cacodemon to a junction and take the west path to find a doorway between a pair of floor lamps. Go through this doorway and climb the steps to the top to find some imps guarding a switch, then flip it to lower a lift holding the blue keycard. Take the key then ride the lift up to an overhead ledge, then go through the door here to reach a walkway east of the starting point. From here you can head west to get back to the blue door you saw earlier, open it then press the button to your right to raise a set of stairs. Climb the stairs and kill one or two waiting lost souls, then follow the tunnel down to the exit door and flip the switch behind it to finish the level.

Other points of interest[edit]

In the room with the teleporter that leads to the red key switch, go to the east end of the room to find a box of bullets, a box of shotgun shells and a partial invisibility on a marble altar. After using the teleporter, go behind it to find a rocket launcher.


  1. Exit the starting area and head down the steps to the west, but look north as you do to find a section of the wall with a gray ridge at the bottom. Use this side of the wall to find an armor, a medikit and clips. (sector 24)
  2. Head east from the starting hall and south across the nukage to a door. Open it, and in the next room, climb on the crates at the south-west end. Look south-east and shoot the switch, then leave and go to the red key area. Head south and west into the room that had the shootable switch, where the south-west wall is now open. Inside is a plasma gun, two health bonuses and two armor bonuses. (sector 147)
  3. Press on the wall west of where the rocket launcher is to find health and armor bonuses. (sector 88)
  4. Approaching the rising and lowering lift in the north-east part of the map causes a different lift to lower. Go back west and through the opening before it closes to find two boxes of rockets and a megaarmor. (sector 74)
  5. Head past the rising and lowering lift to the north end, then take the first path you see going south. You will find a rocket and a candelabra in a side room. Press on the wall below them to find health and armor bonuses. (sector 83)
  6. Ride the blue key lift up to the blue door, then press on the north-east wall to access the other side, which has health and armor bonuses. (sector 58)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

The records for the map at the Doom Speed Demo Archive are:

Run Time Player Date File Notes
UV speed
NM speed
UV max
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on December 7, 2021.


Map data[edit]

Things 236
Vertices 1060*
Linedefs 1247
Sidedefs 1697
Sectors 247
* The vertex count without the effect of node building is 940.


This level contains the following numbers of things per skill level:

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]