MAP03: The Room Taking Shape (BTSX-E1)


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Secret maps: 31 32

This level occupies the map slot MAP03. For other maps which occupy this slot, see Category:MAP03.

MAP03: The Room Taking Shape is the third level of the first episode of Back to Saturn X. It was designed by Paul DeBruyne (skillsaw) and uses the music track "Drilling By Night" by Stuart Rynn (stewboy). The par time is 1:30. In the official add-on version, this level's name is Drilling By Night, taken from its track title.


Map of The Room Taking Shape
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.


Step round the imp in front of you to get a shotgun, then go up the steps ahead to enter a room with one or two zombiemen. Head north along a corridor to a switch and flip it to lower the nearby lift, then ride the lift up and kill a cacodemon (or revenant on Ultra-Violence (UV) and Nightmare (NM) skill levels) waiting next to a computer column. Head down either staircase on the north side of the room to a seemingly empty room with a button; pressing it will open the computer column and reveal the red keycard, but it will also release imps, zombies and a demon around you. When you collect the red key you will find that four more closets holding various enemies have also opened.

Drop through the windows to land in the starting area, then walk south to a storage area with a couple of crates. Open the red key door on the west side and head straight forward to find a rocket launcher, which you can use to kill the mancubus and Hell knight (or arachnotron on Hurt Me Plenty or higher) waiting outside, next to a pillar holding the yellow keycard. Go up the steps leading around the outer wall, then climb up two flights of stairs to enter a corridor with some crushers - as you pass under each crusher, watch out for zombies, demons and cacodemons lowering behind you or to your left. After passing after the fifth crusher, look for a button on your right and press it then drop down to the ground below to find that the yellow key has lowered it along with a second pillar holding a super shotgun - taking the key will open a nearby closet as well as allowing mancubi to teleport to the crusher hallway.

With the yellow key, climb the steps and pass through the crushers again to get to the button you pressed earlier, then continue on to a yellow key door that leads back to the red key area. Head east to another locked door and open it, then drop down to the corridor below and open a third locked door in front of you; the hallway ahead leads to the exit door, but watch out for a pain elemental and chaingunner being released in front of and behind you as you get close. Once you reach the door, open it to find the exit switch (plus a medikit on I'm Too Young To Die and Hey Not Too Rough).

Other points of interest[edit]

From the start, head straight forward up the steps to see a square column in front of you. There is a switch on the south face of the column that, when flipped, will lower the nearby computer screens. The looping hallway behind these screens holds a chaingun.


  1. From the start, head south to an area with a couple of crates. Go behind the brown crate to find a button and press it to lower a ledge with an armor and a box of rockets. (sector 188)
  2. From the start, head straight forward into the next room then look north-west to see an alcove with a zombieman and shotgun guy. Enter this alcove and press a tiny switch on the south wall, which will open a compartment with a chainsaw and nine health bonuses. (sector 362)
  3. At the north end of the hallway with crushers, you will be ambushed by several enemies coming from compartments that open up on the outer bend. One compartment holds a knight, a shotgun guy and a cacodemon (two on UV or NM), as well as a stimpack. Enter this compartment and press the north-west wall to lower it, then enter the next hall and follow it until you see another wall lower to your right; behind it is a plasma gun and some energy cells, or just a BFG9000 on UV and NM. (sector 3)


Areas / screenshots[edit]


Current records[edit]

The records for the map at the Doom Speed Demo Archive are:

Run Time Player Date File Notes
UV speed 0:32.97 Headshot 2019-11-16
NM speed
UV max 2:06.80 Andrea Rovenski (Cyberdemon531) 2017-03-09
NM 100S
UV -fast 3:19.46 Brian Nesser (Anima Zero) 2017-03-11
UV -respawn
UV Tyson 7:32.86 Andrea Rovenski (Cyberdemon531) 2017-03-16
UV pacifist 0:37.43 Ryan Krafnick (Kraflab) 2017-03-18
NoMo 0:41.03 Sayeth 2021-02-18
NoMo 100S 0:59.54 xX_Lol6_Xx 2022-10-12

The data was last verified in its entirety on October 24, 2022.


Map data[edit]

Things 322
Vertices 1829*
Linedefs 1989
Sidedefs 2912
Sectors 415
* The vertex count without the effect of node building is 1529.


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

Technical information[edit]

Inspiration and development[edit]


External links[edit]