MAP20: Demon Seed (Vile Flesh)


Vile Flesh maps 12-20

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

This level occupies the map slot MAP20. For other maps which occupy this slot, see Category:MAP20.

MAP20: Demon Seed is the twentieth map of Vile Flesh. It was designed by Gwyn Williams, who also composed the level's untitled music track, which is also used in MAP10: Beacon.

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Map of Demon Seed
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. Go along the cave south of the starting area until you reach the bridges in the middle of the map. A wall at the northeast end of the cave exit can be lowered, allowing you to reach supplies such as a green armor and rockets. (sector 68)
  2. In the room with the square lava pit, the faceted stone tablet at the south end can be shot down, revealing a baron of Hell guarding shotgun shells and a rocket. (sector 335)
  3. After you get the blue key, return to the room in the middle of the map with two switches and use the blue one to open the north door. Take the lift up, then take the bridge to the north. Backtrack to the room before, and to the east is a new room with shotgun guys. The skull at the south end of the room will actually trigger a lift. Use it and quickly run all the way west and south to a depot containing rockets and a medikit. (sector 461)
  4. From the yellow key area, descend the steps until you reach the bottom, then quickly run back to the yellow key area and go to the left side of the southwest column. Press the switch before it rises and you will open a passage to the southeast. Collect the health bonuses as you make your way through the cave. You can open the fence here to reach the outside portion, where you can get more health bonuses, a box of shotgun shells, and a BFG9000. (sector 293)
  5. After you get the red key, go back to the red door south of the hub and use the switch inside. This will lower two walls to the south. Enter the furthest wall and use the west wall there to reveal a new passage leading to health bonuses and a computer area map. (sector 342)
  6. Approaching the computer area map in Secret #5 will trigger a wall to the west. You can lower it by pressing on it, and at the top, a switch will appear. Use it to lower the north wall, along with another one behind it. Inside is a plasma gun, armor bonuses, and an energy cell pack. (sector 366)


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 2:39.63 Boris Klimeš (dew) 2011-05-22
NM speed
UV max 12:29.43 j4rio 2012-08-16
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist
NoMo 100S 5:14.66 Gwyn Williams 2003-05-23

The data was last verified in its entirety on July 10, 2023.


Player spawns[edit]

This level contains eight spawn points:

  1. facing east. (thing 731)
  2. facing east. (thing 732)
  3. facing east. (thing 733)
  4. facing east. (thing 734)
  5. facing north. (thing 738)
  6. facing north. (thing 741)
  7. facing north-east. (thing 742)
  8. facing south-east. (thing 743)


Map data[edit]

Things 780
Vertices 3369*
Linedefs 3234
Sidedefs 4629
Sectors 507
* The vertex count without the effect of node building is 2785.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]