MAP31: Iron Exuviae (NOVA: The Birth)


NOVA: The Birth secret maps

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Secret maps

This level occupies the map slot MAP31. For other maps which occupy this slot, see Category:MAP31.
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MAP31: Iron Exuviae is the first secret map of NOVA: The Birth. It was designed by Darryl Steffen (dobu gabu maru) and uses the music track "Oh No, I Forgot the Title," by Paul D.

A sequel map, Copper Exuviae, was designed by Steffen for the Doomworld Mega Project 2016.


Map of Iron Exuviae
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 reach the teleporter puzzle in the level, you will have to enter the teleporters in a specific order. If you went past the crushers to the platform with the outline, you will notice a solution. If you backtrack to the room with the other outline and notice the torches, that is the order you have to go to, but this is for the normal exit. For the secret exit, you will have to do things in a different order. The order is tall blue torch, small green torch, tall blue torch, tall red torch, small red torch, small blue torch. After entering the teleporters in exactly that order, look to the left and press on the metal wall with slits for a secret passage, which will first lead you to the main combat room, then eventually lead you to the secret exit in the level. (sector 1288)


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) 1:31.40 Guanlan Chen (GarrettChan) 2021-09-05 Cross-listed from Pacifist
UV speed (secret exit)
NM speed (normal exit)
NM speed (secret exit)
UV max 7:02.49 Poncho 2020-09-12
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist (normal exit) 1:31.40 Guanlan Chen (GarrettChan) 2021-09-05
UV pacifist (secret exit)
NoMo (normal exit) 1:45.74 Infidius 2014-10-25

The data was last verified in its entirety on January 14, 2022.


Player spawns[edit]

This level contains eight spawn points:

  1. facing south-west. (thing 1675)
  2. facing south-east. (thing 1676)
  3. facing south. (thing 1677)
  4. facing north. (thing 1691)
  5. facing north-east. (thing 1692)
  6. facing north-west. (thing 1693)
  7. facing west. (thing 1694)
  8. facing east. (thing 1695)


Map data[edit]

Things 1696
Vertices 27734*
Linedefs 25310
Sidedefs 47493
Sectors 2599
* The vertex count without the effect of node building is 21122.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]