E1M5: Chemical Atrophy (Mapgame)

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Mapgame maps
This level occupies the map slot E1M5. For other maps which occupy this slot, see Category:E1M5.
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E1M5: Chemical Atrophy is the fifth map of Mapgame. It was designed by Fletcher`.


Map of Chemical Atrophy
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. In the middle of the central steps, find an open vent and enter it to get a medikit. (sector 491)
  2. In the southeast hall, use the east light which is second from the bottom to find a hall leading to armor bonuses and a berserk pack. (sector 385)
  3. When you teleport to the exit area, shoot the west vent to find health bonuses. (sector 505)


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 2:46.34 Graim 2009-10-24 mapgame_graim.zip
NM speed
UV max 5:58.31 Vladimir Monakhov (skepticist) 2009-07-11 mapgame_lmps.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on December 9, 2021.


Map data[edit]

Things 385
Vertices 3741*
Linedefs 3695
Sidedefs 6273
Sectors 571
* The vertex count without the effect of node building is 2826.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]