B21

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B21
The starting areaThe starting area
Author Bob Carter
Port Vanilla Doom
IWAD Doom
Year 1994
Link Doomworld/idgames
This level occupies the map slot E2M1. For other maps which occupy this slot, see Category:E2M1.
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B21 is a single-level PWAD for Doom that was released in 1994. It was designed by Bob Carter. It was later adapted as E3M6 of The Lost Episodes of Doom.

Walkthrough[edit]

Map of B21
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.

Essentials[edit]

Other points of interest[edit]

Secrets[edit]

  1. In the area after the start is a round platform containing a soul sphere. This can be obtained by running onto it, or by pressing any of its walls on the north side. (sector 16)
  2. The south-east of the trench near #1 is narrower than the rest – walking over this part will open up a door behind the start, leading to a room with a chaingun. It will also open up the northern part of the trench. (sector 3)
  3. The north-west contains a room with various floors going up and down. There is a room to the east of this with a switch, which opens a room to the east of the southern oscillating floors, containing a blue key, a spectre, an energy cell pack, a medikit, a rocket launcher, and a rocket. (sector 72)
  4. The switch that opens up #3 also opens a room off the middle-right of the fifteen northern oscillating floors, which contains a switch opening up an area north of the easternmost of the three crushing ceilings. This leads to a BFG9000, a partial invisibility, a health bonus, and some ammo. (sector 227)

Bugs[edit]

Demo files[edit]

Areas / screenshots[edit]

Speedrunning[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
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on November 30, 2021.

Deathmatch[edit]

Player spawns[edit]

This level contains five spawn points:

  1. facing east. (thing 230)
  2. facing east. (thing 231)
  3. facing east. (thing 232)
  4. facing east. (thing 233)
  5. facing west. (thing 375)

Statistics[edit]

Map data[edit]

Things 446
Vertices 1439*
Linedefs 1456
Sidedefs 2073
Sectors 276
* The vertex count without the effect of node building is 1186.

Things[edit]

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

Technical information[edit]

Inspiration and development[edit]

Trivia[edit]

See also[edit]

Sources[edit]

External links[edit]