MAP20: Reactor (STRAIN)


STRAIN 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.
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MAP20: Reactor is the twentieth map of STRAIN. It was designed by David Davidson (Driller) and uses the music track "Phenomenon" by Mark Klem.


Map of Reactor
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. Head behind the starting column and use the northwest wall to find a soul sphere, a rocket launcher, boxes of rockets, and a backpack. (sector 116)
  2. See Secret #1. (sector 117)


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 0:24.26 Graham Burgess (Grazza) 2019-07-11
NM speed
UV max 1:13.37 Andrea Rovenski (Cyberdemon531) 2023-03-22
NM 100S
UV -fast 1:23.74 Andrea Rovenski (Cyberdemon531) 2023-03-22
UV -respawn
UV Tyson
UV pacifist 0:38.63 Andromeda 2020-08-12
NoMo 0:20.60 Graham Burgess (Grazza) 2016-11-03

The data was last verified in its entirety on April 16, 2023.


Player spawns[edit]

This level contains four spawn points:

  1. facing west. (thing 134)
  2. facing east. (thing 138)
  3. facing east. (thing 139)
  4. facing west. (thing 140)


Map data[edit]

Things 142
Vertices 616*
Linedefs 732
Sidedefs 1127
Sectors 139
* The vertex count without the effect of node building is 563.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]