MAP09: Deimos Anomaly (Console Doom)


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Deimos Anomaly

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This is a console version
of a PC level.

This level occupies the map slot MAP09. For other maps which occupy this slot, see Category:MAP09.
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MAP09: Deimos Anomaly is the ninth level of most console versions of Doom, based on the original E2M1: Deimos Anomaly with modifications made to adapt to consoles' limitations. The author of the conversion is American McGee, and the original author of the map is Sandy Petersen. The map first appeared in Atari Jaguar version, and is additionally used in the 3DO, Sega 32X, Game Boy Advance, Sony PlayStation, and Sega Saturn versions.


Map of Deimos 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.


Other points of interest[edit]


  1. (sector 29)
  2. (sector 43)
  3. (sector 64)
  4. (sector 77)


Comparison of versions[edit]

Aside from geometry simplification, a number of changes were made to this level compared to the PC version.

Room design[edit]

  • Textures throughout the level are changed, to reduce the number of different textures used.
  • The pointed floor around the teleporter in front of you at the start of the level has three points instead of four.
  • The sectors either side of the red inverted cross have lower ceilings, to avoid an issue where textures stretch if they attempt to tile vertically more than once.
  • The three windows around the blue keycard have translucent panels in them.
  • The three candles on the red sector with the shotgun were removed.
  • The switch which opens the hidden area containing the red keycard is further from the wall. This hidden area and the wall in front of it are horizontal instead of being angled.
  • Some thin sectors around the red door were removed.
  • The switch in the south-western room is flat instead of being angled, and the staircase that it raises is shorter.
  • The exit room is rectangular.

Monster placement[edit]


Areas / screenshots[edit]

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Atari Jaguar screenshots[edit]

3DO screenshots[edit]

Sega 32X screenshots[edit]

PlayStation screenshots[edit]

Sega Saturn screenshots[edit]

Game Boy Advance screenshots[edit]


The map uses the following music tracks:

Port Track Composer Notes
Atari Jaguar "Donna To The Rescue" Robert Prince Only plays in the intermission screen after the map is completed.
3DO "I Sawed The Demons" Robert Prince Re-orchestrated version played by live band
Sega 32X "Hiding The Secrets" Robert Prince
Game Boy Advance "The Demons From Adrian's Pen" Robert Prince
Sony PlayStation "Breath Of Horror" Aubrey Hodges
Sega Saturn "A Calm Panic Rises" Aubrey Hodges


Player spawns[edit]

This level contains four spawn points:

  1. facing south. (thing 109)
  2. facing west. (thing 110)
  3. facing north. (thing 111)
  4. facing south. (thing 112)


Map data[edit]

Things 115
Vertices 373*
Linedefs 383
Sidedefs 507
Sectors 87
* The vertex count without the effect of node building is 300.


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

Technical information[edit]

Inspiration and development[edit]



Console Doom levels - Atari Jaguar, 3DO, Game Boy Advance
Secret levels:
Console Doom levels - Sega 32X
Secret levels:
Console Doom levels - Doom for Sony PlayStation and Sega Saturn
Ultimate Doom
Secret levels:
Doom II
The Star Base:
The City:
Secret levels: