MAP18: The Ultimate Door (1x1)

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1x1 maps 12-21

01 02 03 04 05 06 07 08 09 10 11
(12 - 21)
Secret maps: 31 32 33

This level occupies the map slot MAP18. For other maps which occupy this slot, see Category:MAP18.
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MAP18: The Ultimate Door is the eighteenth map of 1x1. It was designed by Petyan and uses the music track "Yorimashi Between Dreams and Reality ~ Necro-Fantasia" by Jun'ya Ōta (ZUN) from Antinomy of Common Flowers.

Walkthrough[edit]

Map of The Ultimate Door
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.

Essentials[edit]

Other points of interest[edit]

Secrets[edit]

  1. Fall to the void to the south of the start and find the berserk pack near the teleporter. (sector 2)
  2. In the large arena near the center, head to the imp closets to the east and open a door to get a backpack and a megaarmor. (sector 521)
  3. In the hall west of the large arena, head to the northwest door and open it to get energy cells and either a soul sphere or medikits depending on your skill level. (sector 559)
  4. In the same hall, head south and near the normal exit, open a door to the east to get energy cells and either a green armor or megaarmor depending on your skill level. (sector 631)
  5. In the west area, head north to a soul sphere and open a door east of there to get a megasphere and an invulnerability (not on Ultra-Violence or higher). (sector 674)
  6. In the same area, head to the bars and head southeast of them, opening a door there to find boxes of rockets, energy cell packs, and a backpack. (sector 759)
  7. Head south from the blue keycard and open the door to get a backpack and energy cell packs. (sector 1576)
  8. After getting all six keys, head back to the void south of the large tower and open the south door to find the secret exit. (sector 2080)

Bugs[edit]

Demo files[edit]

Areas / screenshots[edit]

Speedrunning[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 (normal exit) 0:19.77 RedBoule 2023-11-02 1x1118-1977.zip
UV speed (secret exit)
NM speed (normal exit)
NM speed (secret exit)
UV max 10:55.94 RedBoule 2024-04-28 1x118m1055.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist (normal exit) 0:21.80 RedBoule 2023-11-03 1x1118p2180.zip
UV pacifist (secret exit)
Stroller (normal exit) 0:35.94 Orii 2025-07-09 1x118str035.zip

The data was last verified in its entirety on July 11, 2025.

Statistics[edit]

Map data[edit]

Things 4218
Vertices 16313*
Linedefs 16559
Sidedefs 24953
Sectors 2191
* The vertex count without the effect of node building is 13963.

Things[edit]

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

Technical information[edit]

Inspiration and development[edit]

Trivia[edit]

See also[edit]

Sources[edit]

External links[edit]