MAP31: Secret Facility (Hell To Pay)


Hell To Pay maps 12-20

01 02 03 04 05 06 07 08 09 10 11
(12 - 20, 31 - 32)
21 22 23 24 25 26 27 28 29 30

This level occupies the map slot MAP31. For other maps which occupy this slot, see Category:MAP31.

MAP31: Secret Facility is the sixteenth map of Hell To Pay. Despite the map slot, it is not a secret map: the previous map only has a "secret exit", making progression through MAP31 the only way possible.

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Map of Secret Facility
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. In the room after the starting area, there is a radiation sign on the wall where three Hell knights were. Open this up for goodies. (sector 133)
  2. See secret #1. (sector 132)
  3. In the room with the nukage, opposite the yellow door, use the elevator and ride it up. The wall of the left side can be opened up for a partial invisibility and a box of bullets. (sector 56)
  4. In the same room, there is an indentation on the wall with a radiation sign. Open this for a radiation suit. (sector 84)
  5. Whilst the suit is active, open up the wall in the top left of the nukage room and halfway down the first hallway is a wall with a skull on it. Open this to lower an elevator with a stimpack. (sector 86)
  6. Continue through secret #5 and you will reach a soulsphere. (sector 129)


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 4:11.74 Vladimir Monakhov (skepticist) 2009-10-15
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on January 16, 2022.


Player spawns[edit]

This level contains eight spawn points:

  1. facing south-east. (thing 60)
  2. facing south-east. (thing 61)
  3. facing west. (thing 62)
  4. facing east. (thing 63)
  5. facing north-east. (thing 64)
  6. facing north-east. (thing 86)
  7. facing south-west. (thing 255)
  8. facing south-west. (thing 256)


Map data[edit]

Things 258
Vertices 1193*
Linedefs 1261
Sidedefs 1721
Sectors 219
* The vertex count without the effect of node building is 1038.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]