E1M4: Substation 537A (2002 A Doom Odyssey)

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2002 A Doom Odyssey maps
Deep into the Code
The Road to Eternity

M1 M2 M3 M4 M5 M6 M6 M7 M8 M9

The Evil Unleashed

M1 M2 M3 M4 M4 M5 M5 M6 M7 M8 M9

The Search for Stephanie (original)
Torment Ultima (10th ed.)

M1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M9

Bonus ZDoom levels

M1 M1 M2

This level occupies the map slot E1M4. For other maps which occupy this slot, see Category:E1M4.
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E1M4: Substation 537A is the fourth map in the Deep into the Code episode of 2002 A Doom Odyssey. It was designed by Kristian Aro (Nebula) and uses the music track "". In the 10th anniversary edition some geometry changes were applied but the things population remained the same.


Map of Substation 537A (original)
Map of Substation 537A (10th ed.)
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. Inside the room where the yellow key is, there are two 'POISON' signs at the top of the steps near the door. Use the one closer to the north to find a rocket launcher. (sector 86)
  2. Shoot the barrels in the room past the yellow door and use the switch to lower the bars, then go right (east) and continue to the next door. In the next hall, a closet opens to the southeast as you go. Press on the plain beige wall (southwest) to find health bonuses, a backpack, and a switch. This switch will lower the soul sphere in the hub. (sector 117)


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 2:59.14 Kyle McAwesome 2021-10-23 a1d4-259.zip
NM 100S 4:16.49 Kyle McAwesome 2014-09-10 a1d4s416.zip
UV -fast 4:15.43 Kyle McAwesome 2011-07-02 a1d4f415.zip
UV -respawn 4:38.29 Kyle McAwesome 2011-07-31 a1d4r438.zip
UV Tyson 14:27.60 Andrey Boldt (Hitherto) 2021-08-31 a1d41427.zip
UV pacifist
NoMo 1:50.94 Matt Powell (cannonball) 2011-09-25 a1d4o150.zip

The data was last verified in its entirety on April 3, 2022.


Player spawns[edit]

This level contains four spawn points:

  1. facing east. (thing 241)
  2. facing south. (thing 244)
  3. facing east. (thing 247)
  4. facing east. (thing 250)


Map data[edit]


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]