MAP01: Entering the Building (Hell Factory)


Hell Factory maps
This level occupies the map slot MAP01. For other maps which occupy this slot, see Category:MAP01.
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MAP01: Entering the Building is the first map of Hell Factory. It was designed by Tomi Rajala (Lu Wang) and uses the music track "".


Map of Entering the Building
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 southeast water area, swim down and east to a secret room with partial invisibility. (sector 191)
  2. In the blue key room, jump from the vats out the window to the north to find a backpack. (sector 317)


In recent versions of GZDoom (at least as early as version 1.4.0, and possibly later versions of ZDoom as well), the silent teleport in the ventilation shaft sections (west and north portions of the map) will not correctly rotate the player 180 degrees, thus making it nearly impossible to progress. This can be fixed by running ZDoom/GZDoom with the command line parameter gennodes 1.

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 February 21, 2022.


Player spawns[edit]

This level contains six spawn points:

  1. facing south-west. (thing 73)
  2. facing east. (thing 74)
  3. facing west. (thing 75)
  4. facing north-west. (thing 76)
  5. facing east. (thing 77)
  6. facing south. (thing 221)


Map data[edit]

Things 241
Vertices 2558*
Linedefs 2188
Sidedefs 3452
Sectors 431
* The vertex count without the effect of node building is 1919.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]