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BOBKDV2 maps
This level occupies the map slot E1M1. For other maps which occupy this slot, see Category:E1M1.

E1M1 is the first map of BOBKDV2. It was designed by Bob Carter. It was later adapted into E2M7 of The Lost Episodes of Doom.


Map of E1M1
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. The exit room counts as a secret and is impossible to miss. (sector 61)
  2. There is a switch behind a barrel in the northern part of the level. This opens a door in the start room (access to which requires the red key which can be found in a room accessed by a secret door in the west wall of the alcove near the lift in the north of the level), which leads to a nukage area. (sector 69)
  3. Upon entering the south-easternmost room from the east, a door opens in the north wall leading to an area with a radiation shielding suit and a partial invisibility. The door closes after a few seconds, but can be re-opened as often as needed. (sector 79)
  4. The area accessed by #2 can be exited by a staircase, which has a secret sector at its base, leading to a ledge from which a BFG9000 can be obtained. (sector 93)
  5. Jumping into the large nukage pool, there is a soul sphere on a platform which can be lowered, allowing access to a ledge. Walk to the end of this ledge – there is a secret door leading to an area with several soul spheres, megaarmor vests, and energy cell packs. (sector 104)


The red key, which is required to reach secret #2 and secret #4, is not present on easy skill. As a result, on easy skill the maximum achievable secret percentage is 60% and the maximum achievable items percentage is 86% (there are two partial invisibilities and a soul sphere in the nukage area).

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 0:20.23 DidierTranber 2014-07-24 bobkdv21-020.zip
NM speed
UV max
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on December 8, 2021.


Player spawns[edit]

This level contains five spawn points:

  1. facing east. (thing 59)
  2. facing east. (thing 60)
  3. facing east. (thing 61)
  4. facing east. (thing 62)
  5. facing east. (thing 63)


Map data[edit]

Things 225
Vertices 605*
Linedefs 653
Sidedefs 800
Sectors 107
* The vertex count without the effect of node building is 537.


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

Technical information[edit]

Inspiration and development[edit]


External links[edit]