MAP12: Entryway to the Worlds of the Ancients (Perdition's Gate)


Perdition's Gate maps

01 02 03 04 05 06 07 08 09 10 11

World of the Ancients
Planet Hell

21 22 23 24 25 26 27 28 29 30

World of Wonders

31 32

This level occupies the map slot MAP12. For other maps which occupy this slot, see Category:MAP12.

MAP12: Entryway to the Worlds of the Ancients is the twelfth map of Perdition's Gate. It was designed by Tom Mustaine, Bob Mustaine, and Jimmy Sieben (Evil Genius) and uses the music track "Cruisin' With Devils" by L.A. Sieben.

Plot: You step off the teleporter pad and see what appears to be a structure floating in space. You have no way back. Time to find out where you are.


Map of Entryway to the Worlds of the Ancients
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.


There's nothing of interest in this floating structure, so head straight to the teleporter in the south west corner to be taken to the level proper.

Shoot the demon when you land and head up the stairs where you will find a large number of zombies and imps approaching. At the top of the stairs, take a right to a T junction where you need to take the right turn into a brown brick area. Though you might catch the attention from some of the bad guys down the left corridor as you do.

You will be presented with two sets of stairs almost immediately, one going down into a pit, the other going up to a ledge that runs around the edge of said pit. The end of the ledge and the pit both have switches you need to press to raise platforms. The switch in the pit can be found on the north side and will raise a bridge to the maps red key, whilst the switch down the end of the ledge will raise a structure in the pit allowing you to ultimately reach the blue key. Note the blue bars next to the later switch.

With both switches pressed, head back toward the teleporter you entered the map from, but instead of going down the stairs to it, keep going (i.e. you went right at the top of the stairs earlier, now you are taking the other route). Ultimately you will find a rocket launcher and a door.

Open the door to reveal a water filled area and a wooden bridge that leads across it to the red key (you raised this earlier). Red key in possession head to the south west corner of this area to find the red bars. Note the bridge extending to the yellow door on the west side of this area.

Open them and head up the stairs, watching for the bad guys that teleport into the water area behind you and use the teleporter at the top to enter a new brown area that when you follow around leads you to a ledge overlooking the already visited brown pit. From here you can jump onto the structure you created earlier and use it to reach another ledge over the other side, where you can find the blue key.

Head to the blue bars and grab the yellow key behind them. Finally head back to the water area, open the yellow door, behind which you will find the exit around the corner.

Other points of interest[edit]


  1. After you teleport into the main part of the map, head up the stairs and turn right (south). Instead of heading right into the brown area nearby, head one segment west from the entrance to that area and press the northern wall (the one without the horizontal pipes) to reveal stairs leading down to the secret room. (sector 71) Here you will find a BFG9000 and a computer map. There is also a switch that lowers a nearby platform that will take you back to the corridor (although you can just go up the stairs you came down from).
  2. In the same room as secret #1, but cannot be obtained. See the Bugs section. (sector 112)


Secret #2 is inside the button alcove in secret #1. This alcove is too small for the player to stand in, making this secret impossible to register.

When the bridge in the watery area is raised, a clip (thing 135) at the north door gets just barely snagged on it, making it appear to float in the air.

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 1:44.43 Aleksey Kamenev (4shockblast) 2016-01-20
NM speed
UV max 3:41.14 Aleksey Kamenev (4shockblast) 2016-01-04
NM 100S 2:28.80 Aleksey Kamenev (4shockblast) 2015-11-20
UV -fast 4:43.29 Aleksey Kamenev (4shockblast) 2015-11-23
UV -respawn
UV Tyson 21:03.63 Aleksey Kamenev (4shockblast) 2017-01-20
UV pacifist
NoMo 0:43.97 Aleksey Kamenev (4shockblast) 2015-04-12
NoMo 100S 0:49.97 Ryan Krafnick (Kraflab) 2015-08-26

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


Player spawns[edit]

This level contains five spawn points:

  1. facing north. (thing 193)
  2. facing south. (thing 195)
  3. facing west. (thing 196)
  4. facing north. (thing 198)
  5. facing west. (thing 230)


Map data[edit]

Things 237
Vertices 1670*
Linedefs 1865
Sidedefs 2692
Sectors 282
* The vertex count without the effect of node building is 1467.


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

Technical information[edit]

Inspiration and development[edit]

Concept art done by Bob Mustaine in AutoCAD

Bob Mustaine first sketched out the teleporter device in AutoCAD. The area was originally going to be a grassy ruin, but was changed to a pillar floating in a black void due to the skybox not matching.[1]


See also[edit]


External links[edit]


  1. Tom Mustaine. "Perdition's Gate." (archived 🏛). Retrieved 1 January 2023.