MAP12: Adjustable Diode (Three's a Crowd)


Three's a Crowd maps
The First

01 02 03 04 05 06 07 08 09

The Second
The Third

19 20 21 22 23 24 25 26 27


28 29 30

Secret maps

31 32

This level occupies the map slot MAP12. For other maps which occupy this slot, see Category:MAP12.
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MAP12: Adjustable Diode (named merely Diode on the automap) is the twelfth map of Three's a Crowd. It was designed by Scypek2 and uses the music track "".


Map of Adjustable Diode
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 room with the yellow key and yellow door, open a door to the east and press the switch to the north. Quickly re-enter the door you went through before it closes and go through the passage west of the yellow door. Open the next door to find stimpacks and a soul sphere. (sector 130)
  2. In the large nukage area, head to the northeast side and enter the southeast corridor to find a megaarmor. (sector 305)
  3. At the westernmost hall, go towards the first pool and press on the wall with slime to the east. This reveals a switch at the backside, which in turn opens the slimy wall. Take this passage of armor bonuses to a teleporter that leads to a berserk pack. (sector 357)
  4. At the northernmost end of the westernmost hall, open the north wall to find a medikit, a computer area map, and a box of ammo. (sector 370)


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

The (absence of) data was last verified in its entirety on January 14, 2022.


Map of MAP12's deathmatch arena

This level includes its own, separate deathmatch arena.

Player spawns[edit]

This level contains four spawn points:

  1. facing west. (thing 290)
  2. facing east. (thing 291)
  3. facing east. (thing 292)
  4. facing west. (thing 293)


The following things (per skill level) are placed in the arena:

Weapons 1-2 3 4-5
Shotgun 1
Chaingun 1
Rocket launcher 1
Plasma gun 1
BFG9000 1
Miscellaneous 1-2 3 4-5
Deathmatch start 4


Map data[edit]

Things 311
Vertices 2100*
Linedefs 2350
Sidedefs 3405
Sectors 498
* The vertex count without the effect of node building is 1859.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]