Z1M8: Phobos Anomaly (Knee-Deep in ZDoom)

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Knee-Deep in ZDoom maps
This level occupies the map slot Z1M8. For other maps which occupy this slot, see Category:Z1M8.

Z1M8: Phobos Anomaly is the eighth and final level of Knee-Deep in ZDoom, revisiting the original level with some new twists. The level ends with a showdown between the marine and Magmantis, the Deimos Guardian, preceded by three mini-boss fights with barons of Hell and Bruiser Demons.


Map of Phobos Anomaly
Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.



  1. After going through the blue door, turn left. On the south wall of this corridor, there is a very well hidden switch. Pressing it opens an adjacent compartment, containing a rocket launcher, and some rifle cartridges. (sector 588)
  2. In the room after the cacodemon ambush corridor, jump down into the slime river. To the immediate north, open the "POISON" sign on the west wall. Rifle cartridges, a chaingun and a blue armor can be found inside. (sector 960)
  3. After opening through the triple-locked door, open the wall on the immediate right. The soulsphere secret has been moved here. The original was replaced with an ambush by a single lost soul. (sector 2232)

Areas / screenshots[edit]


Current records[edit]

The records for this map at the Doomed Speed Demos Archive are:

Run Time Player Date File Notes
UV speed **
NM speed **
UV max **
NM100S **
UV -fast **
UV -respawn **
UV Tyson **
UV pacifist **

Last updated on March 17, 2013.


Map data[edit]

Things 1443
Vertices 22944
Linedefs 29500
Sidedefs 53006
Sectors 6858


Initially, the level contains the following number of things on each skill level. This does not account for Thing_Spawn. Custom things are italicised.

Monsters ITYTD and HNTR HMP UV and NM
Zombieman 14 16
Rapid fire trooper 6
Shotgun guy 16 17 18
Chaingunner 0 2 3
Imp 6 8 11
Dark imp 5 7 8
Shadow 10 18 21
Demon 13 10 14
Spectre 0 5 3
Mauler demon 2 3
Blood demon 8 12 16
Lost soul 3 4 5
Demon cube 16
Hell's fury 2 3
Cacodemon 8 10 11
Hell warrior 6 5
Satyr 8 12 14
Hell knight 5
Baron of Hell 8 9
Bruiser demon 2
The Deimos Guardian 1
Weapons ITYTD and HNTR HMP UV and NM
Chainsaw 1
Shotgun 3
Super shotgun 2
Chaingun 4
Rocket launcher 2
Rifle 1
Ammunition ITYTD and HNTR HMP UV and NM
Clip 6
Box of bullets 15 16
Shotgun shells 25
Box of shells 15
Rocket 15
Box of rockets 15
Rifle cartidges 5
Box of cartridges 2
Backpack 2
Power-ups ITYTD and HNTR HMP UV and NM
Health bonus 44
Stimpack 33 34
Medikit 22
Armor bonus 35
Green armor 2
Megaarmor 2
Soulsphere 2
Megasphere 1
Partial invisibility 3
Red keycard 1
Blue keycard 1
Yellow keycard 1

Level designers[edit]

Primary mapping[edit]

Tertiary mapping[edit]

External links[edit]