MAP21: Maintenance (STRAIN)


STRAIN maps 21-30

01 02 03 04 05 06 07 08 09 10 11
12 13 14 15 16 17 18 19 20
(21 - 30)
Secret maps: 31 32

This level occupies the map slot MAP21. For other maps which occupy this slot, see Category:MAP21.
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MAP21: Maintenance is the twenty-first map of STRAIN. It was designed by Anthony Czerwonka (Adelusion) and Arthur Chang, and uses the music track " ".


Map of Maintenance
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. At the west side of the map, go to the terminal room at the east end and use the terminal with the Virgo sign behind it. Then in the southern part of the main area, teleport to the south end and flip switches to the south and teleport repeatedly until you reach a platform to the west of the switch block (while doing this, enter the switch block in the middle to flip switches, as you need to do this to get the yellow key). Hop to the switch block and flip this west side of the switch. Afterwards, head back to the nukage and enter it, going to the center, then south to a secret room with a computer area map (which is the secret) and stimpacks. (sector 168)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

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

Style Time Player Date File Notes
UV speed
NM speed
UV max
UV -fast
UV -respawn
UV Tyson
UV pacifist

Miscellaneous demos[edit]

Style Time Player Date File Notes


Player spawns[edit]

This level contains six spawn points:

  1. facing south. (thing 36)
  2. facing south. (thing 37)
  3. facing north. (thing 38)
  4. facing north. (thing 39)
  5. facing south. (thing 42)
  6. facing south. (thing 43)


Map data[edit]

Things 161
Vertices 2264*
Linedefs 2213
Sidedefs 3599
Sectors 474
* The vertex count without the effect of node building is 1811.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]