MAP02: UAC Executive Areas, Interlock (Perdition's Gate)


Perdition's Gate maps
World of the Ancients

12 13 14 15 16 17 18 19 20

Planet Hell

21 22 23 24 25 26 27 28 29 30

World of Wonders

31 32

This level occupies the map slot MAP02. For other maps which occupy this slot, see Category:MAP02.

MAP02: UAC Executive Areas, Interlock is the second map of Perdition's Gate. It was designed by Tom and Bob Mustaine and uses the music track "Ominous," composed by Tom Mustaine.


Map of UAC Executive Areas, Interlock
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.


At the start, open the door and go down the stairs to your right. Go up the stairs in front and take the stairway to the left. Go through the opening in front and go down the stairs to arrive at an outside area. Go around the central structure to find its entrance, then climb up the stairs and collect the blue key. Retrace your steps to the start until you're near two blue torches, then face right. Go through the opening on the right, down the stairs and flip the switch in this room.

Climb the stairs back up and make a hairpin turn to the right. Once at the bottom of the stairs, take either opening in front and enter the teleporter at the end. Look towards the window on the right in front of you, then go forward and make a hairpin turn to the right to find a switch. Press it then take the teleporter again to return to the previous area. Take the previous stairs back up and make a hairpin turn to the right. Go down the stairs, continue forward and use the left teleporter. Go forward and follow the path to find the red key. Grab it and retake the teleporter to exit this area. Return to the blue torches to spot a red door in front, then go through it. Make your way through the rooms to find the exit door, then open it to find the exit switch.

Other points of interest[edit]


  1. After the starting area, instead of taking the stairway on your left (western), take the one on your right (eastern). Go through the opening and press the northern part of the wall in front of you (eastern) to access two medikits and a chainsaw. (sector 33)
  2. In the blue key area, a section of the southern wall is misaligned. Press it to find two stimpacks and partial invisibility. (sector 95)
  3. After taking the first teleporter in the level (accessible after pressing the blue switch), approach a switch in the area you ended up in. This will lower the easternmost window on the southern wall to the ground, giving you access to eleven health bonuses. (sector 264)


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 1:04.63 Aleksey Kamenev (4shockblast) 2015-05-20
NM speed
UV max 2:20.77 Aleksey Kamenev (4shockblast) 2015-04-14
NM 100S 2:45.97 Aleksey Kamenev (4shockblast) 2015-01-03
UV -fast 2:24.74 Aleksey Kamenev (4shockblast) 2015-11-12
UV -respawn
UV Tyson 3:41.14 Aleksey Kamenev (4shockblast) 2014-10-06
UV pacifist
NoMo 0:37.83 Aleksey Kamenev (4shockblast) 2015-05-26
NoMo 100S 0:52.14 Aleksey Kamenev (4shockblast) 2015-06-26

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


Player spawns[edit]

This level contains six spawn points:

  1. facing north. (thing 6)
  2. facing south. (thing 25)
  3. facing north. (thing 26)
  4. facing west. (thing 27)
  5. facing east. (thing 28)
  6. facing south. (thing 29)


Map data[edit]

Things 189
Vertices 1548*
Linedefs 1724
Sidedefs 2373
Sectors 307
* The vertex count without the effect of node building is 1413.


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

Technical information[edit]

Inspiration and development[edit]


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