E2M1: Biosphere (Doom the Way id Did: The Lost Episodes)

From DoomWiki.org

DtWiD: The Lost Episodes maps
Knee-Deep in the Dead

M1 M2 M3 M4 M5 M6 M7 M8 M9

The Shores of Hell

M1 M2 M3 M4 M5 M6 M7 M8 M9

Thy Flesh Consumed

M1 M2 M3 M4 M5 M6 M7 M8 M9

Base Instinct

M1 M2 M3 M4 M5 M6 M7 M8 M9 M0

The Final Gate

M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E2M1. For other maps which occupy this slot, see Category:E2M1.

E2M1: Biosphere is the first map of episode The Shores of Hell in Doom the Way id Did: The Lost Episodes. It was designed by Lorenzo Davia (Ultimate Lorenzo).

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Map of Biosphere
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 southwest area with three trees, press on the one that flickers to open a room nearby with a plasma gun and an energy cell. (sector 63)
  2. Head north from there and down the steps. Open the wall to the left to get a berserk pack. (sector 69)
  3. At the east side, open the red door and go until you hear a door open. Backtrack to the previous room and head north through the open passage. At the end you can find a chaingun, an energy cell, and a medikit. (sector 122)


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 00:50 Andrea Rovenski (Cyberdemon531) 2014-04-08 l2e1-050.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 7, 2021.


Player spawns[edit]

This level contains four spawn points:

  1. facing north. (thing 97)
  2. facing north-west. (thing 98)
  3. facing north-east. (thing 99)
  4. facing north-east. (thing 100)


Map data[edit]

Things 184
Vertices 641*
Linedefs 716
Sidedefs 977
Sectors 134
* The vertex count without the effect of node building is 582.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]