E2M1: Switchback (A 3-in-1 Remake) (ZPack)

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ZPack maps
The Remains of UAC

M1 M2 M3 M4 M5 M6 M7 M8 M9 M0

Descent to Darkness

M1 M2 M3 M4 M5 M5 M6 M7 M8 M9 M0

This level occupies the map slot E2M1. For other maps which occupy this slot, see Category:E2M1.
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E2M1: Switchback (A 3-in-1 Remake) (M_PHOBUS.WAD) is the first map in episode Descent to Darkness of ZPack. It was designed by James Cresswell (Phobus) and uses the music track "Nuts and Bolts" from Donkey Kong Country 3, composed by Eveline Fischer, in a MIDI version sequenced by Dave Phaneuf and Sam Wolf. The par time defined in MAPINFO is 9:00.


Map of Switchback (A 3-in-1 Remake)
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. Exit the starting room and go down the steps. Turn towards the steps and head left, into the alcove with the computer area map. You only have thirty seconds before this secret is closed off for good. (sector 56)
  2. There are two windows with imps just outside the red key area. Enter the window on the left to get a berserk pack. (sector 276)
  3. In the crate room with the blue key, get onto the tiny crates and use them to jump onto the brown one. Go across the crates going west until you reach the health bonuses and megaarmor. (sector 410)
  4. When you reach the red rock where the portal to the next area is, instead of running all the way across the dropping floors, jump to the ledge to the east. Go along this ledge until you reach backpacks and a teleporter. (sector 486)


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 21, 2021.


Player spawns[edit]

This level contains four spawn points:

  1. facing south. (thing 565)
  2. facing west. (thing 566)
  3. facing south-east. (thing 567)
  4. facing south. (thing 568)


Map data[edit]

Things 690
Vertices 4746*
Linedefs 5368
Sidedefs 9003
Sectors 539
* The vertex count without the effect of node building is 4746.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]