E1M6: The Singularity Complex IV (The Classic Episode, Part 2)

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The Classic Episode 2 maps
This level occupies the map slot E1M6. For other maps which occupy this slot, see Category:E1M6.
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E1M6: The Singularity Complex IV is the sixth map of The Classic Episode, Part 2. It was designed by Jan Van der Veken and uses the music track "Suspense".


Map of The Singularity Complex IV
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.


Other points of interest[edit]


  1. When you follow the first arrow, imps shoot you from catwalks. You can lower two lifts to get the four stimpacks. (sector 130)
  2. Climbing up the stairs before the fake exit opens a wall behind you. Kill the imps and demons for a stimpack, a box of shells, a box of bullets and the chaingun. The switch opens the back door. (sector 216)
  3. In the room below, go on your left and open a wall. The computer map is here. (sector 204)
  4. On the other side, spot the arrow. Open the wall for a box of bullets, bonuses and a medikit. (sector 195)
  5. Open the wall behind the previous medikit for a soulsphere. (sector 209)


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 8, 2021.


Player spawns[edit]

This level contains four spawn points:

  1. facing north-west. (thing 4)
  2. facing west. (thing 5)
  3. facing east. (thing 6)
  4. facing north. (thing 7)


Map data[edit]

Things 150
Vertices 964*
Linedefs 1014
Sidedefs 1563
Sectors 229
* The vertex count without the effect of node building is 807.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]