E2M5: Chemical Lab (The Ultimate NMD)

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The Ultimate NMD maps
Anomaly Zero

M1 M2 M3 M4 M5 M6 M7 M8 M9

Hell's Door
Abandon Hope

M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E2M5. For other maps which occupy this slot, see Category:E2M5.
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E2M5: Chemical Lab is the fifth map in episode Hell's Door of The Ultimate NMD. It was designed by Fiend.


Map of Chemical Lab
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. After you get the yellow key, the walls to the south will lower as well as two monster closets. Enter the east closet and open the back wall to find a switch, which opens the northwest corner in the four-way intersection. This counts as two secrets. (sector 92)
  2. See Secret #1. (sector 214)
  3. In the four-way intersection, go north, then east into the nukage. Find a path of health and armor bonuses which leads to two rockets and a rocket launcher. (sector 99)
  4. In the wooden room at the east end of the map, climb the steps to the top and open the south wall to find a berserk pack. (sector 170)
  5. Once you have the red key, head to the southernmost end of the map by crossing the damaging blood. Open the red door and pick up the plasma gun to open the side closets. Enter the closet on the left and open the south wall to find health bonuses and a switch. (sector 209)
  6. The switch in Secret #5 will open the way to the secret exit, which you can find by going right at the northernmost fork. (sector 90)


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 (normal exit)
UV speed (secret exit)
NM speed (normal exit) 2:27.37 Donatas Tamonis (Donce) 2008-07-13 nmd_e2nm.zip
NM speed (secret exit)
UV max 4:50.57 Vladimir Monakhov (skepticist) 2009-05-09 nmdu_e2.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist (normal exit)
UV pacifist (secret exit)
NoMo (normal exit) 0:48.69 paymentplan 2014-10-20 nmdu_nomo.zip
NoMo (secret exit) 1:12.71 paymentplan 2017-03-28 nmdu_nomo.zip

The data was last verified in its entirety on June 2, 2022.


Player spawns[edit]

This level contains eight spawn points:

  1. facing east. (thing 225)
  2. facing south-east. (thing 230)
  3. facing south-east. (thing 231)
  4. facing south-west. (thing 232)
  5. facing south-west. (thing 235)
  6. facing north. (thing 236)
  7. facing north-east. (thing 237)
  8. facing north-east. (thing 238)


Map data[edit]

Things 241
Vertices 1060*
Linedefs 1183
Sidedefs 1528
Sectors 220
* The vertex count without the effect of node building is 951.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]