MAP22: Immundum (Doomworld Mega Project 2014)


DMP 2014 maps
DMP2014 02-12

02 03 04 05 06 07 08 09 10 11 12

DMP2014 14-23
DMP2014 24-29

24 25 26 27 28 29

This level occupies the map slot MAP22. For other maps which occupy this slot, see Category:MAP22.
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MAP22: Immundum is the twenty-second map of Doomworld Mega Project 2014. It was designed by Darryl Steffen (dobu gabu maru) and uses the music track "Immundum," composed by Paul D.


Map of Immundum
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. East of the starting point is a cyberdemon (mancubus on Hey, Not Too Rough or lower). Heading east from where this monster is positioned opens up two walls surrounding it, containing former humans and ammo. (sector 147)
  2. In the sewer section south of the starting point, go to the northeast end, then enter the room with the green armor and collect it. This lowers two lifts to the east. Take either one up, then use the northeast vent and follow the long passage to find boxes of shotgun shells, stimpacks (only on Ultra-Violence or higher), and a megasphere (Hurt Me Plenty or lower) or a red key (Ultra-Violence or higher). (sector 460)
  3. In the sewer section south of the starting point, go to the west end and pick up the yellow key (backpack on Ultra-Violence or higher) to open the walls behind it. Open the vent in front of you to get a berserk pack. (sector 651)
  4. Flip the switch in the nukage room with health bonuses and fences to open the north wall. Jump down and the wall to the west will open up, revealing monsters and a nukage pool with armor bonuses. To access this secret, you need to access the nukage pool, which can involve either an arch-vile jump (on Ultra-Violence or higher) or by backtracking all the way to the ledge above the room and making an angled jump there. Go through the central slimefall to get a BFG9000 (Hey, Not Too Rough or lower), a megasphere (Hurt Me Plenty), or a soul sphere (Ultra-Violence or higher). (sector 1726)
  5. East of the area where Secret #1 is you will find a bridge. Get on it, then jump northeast to the platform, which lowers a wall to the north. You will find more ammo, stimpacks, and armor bonuses, as well as trigger a crusher that can take out the monster at Secret #1. (sector 2252)
  6. In the caverns east of the starting area, go to the northern caverns and to the northeast side. Enter the slimefall here to get health bonuses and an invulnerability (berserk pack on Ultra-Violence or higher). (sector 2459)
  7. In the central intersection with the plasma gun (soul sphere on Ultra-Violence or higher), go a bit east and then south to an area with three doors. Enter the first one, then use the picture on the north wall to find a switch. Shoot it, then head west of the intersection and through the passage to the north to find a chainsaw. (sector 2086)
  8. In the south lobby, take the northwest door to a room with crates. Go to the backside and hop over a hole, then go up the crates until you get on top of the middle crate. Jump to the northwest set of crates so that one of them lowers, then head behind it to find rockets, shotgun shells, and a megaarmor (green armor on Ultra-Violence or higher). (sector 1961)
  9. In the south lobby, use the computer on the desk at the south end to lower two lifts at the south sides. Take the right lift up, then use the wall with slime on it to find a long passage. Along the way you will find stimpacks in an ammo cache. (sector 1916)
  10. At the end of the passage in Secret #9, use a red key to open the red door, then head north into a room with water. Use the lifts to reach the top pillar with a BFG9000. (sector 3976)
  11. Lower the door at the east end of the south lobby and follow the hall east to a door. Use the nearby terminal on the south wall to find a medikit, an energy cell, shotgun shells, and a box of rockets. (sector 4048)
  12. Use the door in the hall mentioned above, then head straight east and use the terminal to find a blur artifact (green armor on Ultra-Violence or higher). (sector 3988)
  13. In the large cavern in the center of the map, after lowering the barricades, get on the round structure at the south end, then jump west to a rock with armor bonuses, a medikit, an energy cell pack, and a box of rockets. (sector 1851)
  14. In the large cavern in the center of the map, after lowering the barricades, get on the round structure at the north end, then make an angled jump to the rock to the northwest. Go through the passage behind the blood and use a red key to continue through the passage to reach a megasphere (not on Ultra-Violence or higher). (sector 2062)
  15. After you get the blue key, return to the south lobby and use the northeast door. Go to the south end of the room with armor bonuses, then head east and open the blue door. Get the BFG9000 at the end of the halls here to see a soul sphere (computer area map on Ultra-Violence or higher) appear behind a fence. To get it, head south, a bit west, then north and open the wall in the back. (sector 3498)
  16. At the northeast end of the large cavern, open the green door and go through the hall to the next room. Climb the steps to the north, then open the vent at the top. Fall in to get a blur artifact. (sector 1472)


A multiplayer-only teleport landing (Thing 1537) has no flags set for any of the three difficulty classes, so it does not actually appear in the level.

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 January 24, 2022.


Player spawns[edit]

This level contains ten spawn points:

  1. facing north. (thing 2780)
  2. facing north-west. (thing 2781)
  3. facing north. (thing 2782)
  4. facing east. (thing 2783)
  5. facing east. (thing 2784)
  6. facing south. (thing 2785)
  7. facing west. (thing 2786)
  8. facing north. (thing 2787)
  9. facing north. (thing 3338)
  10. facing south. (thing 3434)


Map data[edit]

Things 3599
Vertices 33388*
Linedefs 32615
Sidedefs 54654
Sectors 4575
* The vertex count without the effect of node building is 27206.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]