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BOBKDV2 maps
This level occupies the map slot E1M4. For other maps which occupy this slot, see Category:E1M4.
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E1M4 is the fourth map of BOBKDV2. It was designed by Bob Carter. It was later adapted into E2M8 of The Lost Episodes of Doom.


Map of E1M4
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 north-west corner of the maze, there is an area with a shotgun (on easy and medium skills), an imp (on medium and hard skills) and a teleporter which warps to another point in the maze. (sector 89)
  2. In the northern area with the blue and yellow keys, there is a secret wall (lightly coloured) that requires the yellow key and leads to two secret sectors and a teleporter to the area behind the red door. (sector 158)
  3. See #2. (sector 159)


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 December 8, 2021.


Player spawns[edit]

This level contains five spawn points:

  1. facing south-east. (thing 47)
  2. facing south-east. (thing 48)
  3. facing north. (thing 49)
  4. facing north. (thing 50)
  5. facing north. (thing 51)


Map data[edit]

Things 337
Vertices 903*
Linedefs 1051
Sidedefs 1279
Sectors 161
* The vertex count without the effect of node building is 887.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]