BF THUD! maps 21-29

01 02 03 04 05 06 07 08 09 10 11
12 13 14 15 16 17 18 19 20
(21 - 29)

This level occupies the map slot MAP21. For other maps which occupy this slot, see Category:MAP21.
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MAP21 is the twenty-first map of BF_THUD!. It was designed by Christen Klie.


Map of MAP21
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. Walking over the north side of the starting red square reveals an alcove to the south with a super shotgun, The back wall of this alcove is a secret door leading to a corridor containing health bonuses and a megaarmor. Collecting the megaarmor teleports you back to the north of the corridor. (sector 37)
  2. The far south-east of the level contains four pits each with a teleporter. The north-western one has a secret door in part of the curved section of wall leading to an imp, a pain elemental (easy and medium skills) or a spectre (hard skill), six health bonuses, and a soul sphere. (sector 68)
  3. The north wall of #2 is a secret door leading to an energy cell pack and a switch. The switch lowers walls directly north of the start (through the door revealed by walking across the south side of the starting red square) revealing an energy cell pack and a BFG9000. However, in order to collect these items it is necessary to have lowered the corner walls of their rooms by pressing them before the switch in this secret is pressed, otherwise the walls will not lower fully. (sector 110)


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
NM speed
UV max 1:40.29 Revved 2012-08-03
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on December 20, 2021.


Player spawns[edit]

This level contains seven spawn points:

  1. facing north. (thing 49)
  2. facing north. (thing 73)
  3. facing north. (thing 74)
  4. facing south-west. (thing 75)
  5. facing north. (thing 76)
  6. facing north. (thing 120)
  7. facing east. (thing 149)


Map data[edit]

Things 150
Vertices 749*
Linedefs 832
Sidedefs 1169
Sectors 163
* The vertex count without the effect of node building is 685.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]