E5M2: Observatory (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


M1 M2 M3 M4 M5 M6 M7 M8 M9

Thy Flesh Consumed

M1 M2 M3 M4 M5 M6 M7 M8 M9

Base Instinct
The Final Gate

M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E5M2. For other maps which occupy this slot, see Category:E5M2.

E5M2: Observatory is the second map of the Base Instinct episode in Doom the Way id Did: The Lost Episodes. It was designed by Jeff Shark (Marnetmar) and Jason Root (Hellbent) and uses the music track "The Imp's Song". The par time defined in MAPINFO is 1:15.


Map of Observatory
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.


Go straight forward (east) until you pass a brick column and reach a wide doorway, then flip the switch on the north wall of this doorway to raise a bridge over the nukage ahead. Cross the bridge and flip a switch on the other side to raise two sets of steps behind you, then go up either staircase to reach the door on the east side of the room. Pass through this door and head south past some monsters to an exit door, then open it to find a couple of zombiemen guarding the exit button on the south wall.

Other points of interest[edit]


  1. Head north from the start and the door will open. Open the next door and head east and north at the fork. Open the brown wall to the left and use the lift to go up to a shotgun, armor bonuses, health bonuses, and a stimpack. Entering this room also opens the northern door, but it will soon close. If you want to open this door again and access secret #2, go into the nukage pit and flip the switch to permanently open the door. (sector 129)
  2. The switch behind the door that opens in secret #1 opens a door behind the caged area to the north. Over there you will find an armor, stimpacks, health bonuses, armor bonuses, a clip and shotgun shells. (sector 107)
  3. Head east from the start and use the south wall on the last gray step before the blue floor. Open the next door to get armor bonuses. (sector 72)
  4. Head east from the start and use the north wall on the last gray step before the blue floor. Open the next door to get armor bonuses and a box of shotgun shells. (sector 65)
  5. In the area to the east with the nukage, enter the northeast passage until you find a terminal. Use it, then return to the room with the nukage to find a hole in the south terminal. Enter it to reach the outside area with partial invisibility. (sector 168)
  6. See secret #5. This is a small sector just under secret #5 and is easy to miss. (sector 49)
  7. Grab the partial invisibility mentioned in secret #3 and go south to a lowering wall. Behind it is a megaarmor. (sector 78)


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 7, 2021.


Map data[edit]

Things 173
Vertices 772*
Linedefs 859
Sidedefs 1164
Sectors 171
* The vertex count without the effect of node building is 671.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]