MAP01: One by One (1x1)

1x1 maps 01-11
MAP01: One by One MAP02: Desolate Library MAP03: Szerkezet MAP04: 0/5 idgames MAP05: Woodrooms MAP06: Dark Tek Empire MAP07: Erosive Movements MAP08: Her Love at the Bottom of the Deep Sound MAP09: Longing to Be the Mountain MAP10: The Dark Plateau MAP11: Stone Tomb
(01 - 11) 12 13 14 15 16 17 18 19 20 21 Secret maps: 31 32 33

This level occupies the map slot MAP01. For other maps which occupy this slot, see Category:MAP01.

This article about a map is a stub. Please help the Doom Wiki by adding to it.

MAP01: One by One is the first map of 1x1. It was designed by raddicted and uses the music track "K_DONUT" by Zan-zan-zawa-veia.

Walkthrough

Map of One by One

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.

Secrets

1. Once you teleport, head northwest to get a backpack. (sector 81)
2. At the blue key, jump west to the armor bonus and head south to the berserk pack. (sector 127)
3. At the chaingun, use the green torch to open the bars to the east, which has ammo clips and a computer area map. (sector 452)

Speedrunning

Current records

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

Run	Time	Player	Date	File	Notes
UV speed	0:16.94	Billa	2023-10-03	1x101p1694.zip	Cross-listed from Pacifist
NM speed
UV max	1:55.11	Orii	2024-06-29	1x101m155.zip
NM 100S
UV -fast
UV -respawn
UV Tyson	4:43.37	Orii	2025-11-22	1x101t443.zip
UV pacifist	0:16.94	Billa	2023-10-03	1x101p1694.zip
Stroller	0:29.31	Orii	2025-07-08	1x101str029.zip

The data was last verified in its entirety on December 12, 2025.

Deathmatch

Player spawns

This level contains four spawn points:

1. facing south-west. (thing 230)
2. facing north. (thing 235)
3. facing south-west. (thing 236)
4. facing east. (thing 237)

Statistics

Map data

Things	265
Vertices	3787*
Linedefs	2959
Sidedefs	5219
Sectors	469

* The vertex count without the effect of node building is 2639.

Things

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

Single-player
Monsters	1-2	3	4-5
Zombieman	22	19	19
Shotgun guy	2	7	4
Heavy weapon dude	2	4	7
Imp	15	15	16
Lost soul	2
Demon	9	10	10
Revenant	9	10	9
Cacodemon	4	5	5
Pain elemental	0	1	2
Hell knight	5
Baron of Hell	1
Mancubus	0	0	1
Arch-vile	0	0	2
Green cyberdemon	1
Evil marine	1
Weapons	1-2	3	4-5
Shotgun	1
Super shotgun	2
Chaingun	1
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
Clip	7
4 shotgun shells	14	13	11
Box of shotgun shells	1	0	0
Rocket	2
Box of rockets	1
Energy cell pack	1
Health & Armor	1-2	3	4-5
Stimpack	4
Medikit	3
Armor	1	1	2
Megaarmor	0	1	0
Items	1-2	3	4-5
Armor bonus	9
Health bonus	1
Megasphere	1	0	0
Backpack	1
Berserk	1
Computer area map	1
Keys	1-2	3	4-5
Blue keycard	2
Red keycard	1
Yellow keycard	2
Miscellaneous	1-2	3	4-5
Teleport landing	14
Voodoo doll	3
Fireblu barrel	1

Cooperative
Monsters	1-2	3	4-5
Zombieman	22	19	19
Shotgun guy	2	7	4
Heavy weapon dude	2	4	7
Imp	15	15	16
Lost soul	2
Demon	9	10	10
Revenant	9	10	9
Cacodemon	4	5	5
Pain elemental	0	1	2
Hell knight	5
Baron of Hell	1
Mancubus	0	0	1
Arch-vile	0	0	2
Cyberdemon	1
Green cyberdemon	1
Evil marine	1
Weapons	1-2	3	4-5
Shotgun	1
Super shotgun	2
Chaingun	1
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
Clip	7
4 shotgun shells	14	13	11
Box of shotgun shells	1	0	0
Rocket	2
Box of rockets	1
Energy cell pack	1
Health & Armor	1-2	3	4-5
Stimpack	4
Medikit	3
Armor	3	3	4
Megaarmor	0	1	0
Items	1-2	3	4-5
Armor bonus	9
Health bonus	1
Megasphere	1	0	0
Backpack	1
Berserk	1
Computer area map	1
Keys	1-2	3	4-5
Blue keycard	2
Red keycard	1
Yellow keycard	2
Miscellaneous	1-2	3	4-5
Cooperative start	4
Teleport landing	14
Voodoo doll	3
Fireblu barrel	1

Deathmatch
Monsters	1-2	3	4-5
Zombieman	22	19	19
Shotgun guy	2	7	4
Heavy weapon dude	2	4	7
Imp	15	15	16
Lost soul	2
Demon	9	10	10
Revenant	9	10	9
Cacodemon	4	5	5
Pain elemental	0	1	2
Hell knight	5
Baron of Hell	1
Mancubus	0	0	1
Arch-vile	0	0	2
Green cyberdemon	1
Evil marine	1
Weapons	1-2	3	4-5
Shotgun	1
Super shotgun	7
Chaingun	2
Rocket launcher	4
Plasma gun	3
Ammunition	1-2	3	4-5
Clip	7
4 shotgun shells	14	13	11
Box of shotgun shells	3	2	2
Rocket	2
Box of rockets	3
Energy cell pack	4
Health & Armor	1-2	3	4-5
Stimpack	4
Medikit	6
Armor	2	2	3
Megaarmor	0	1	0
Items	1-2	3	4-5
Armor bonus	9
Health bonus	1
Megasphere	1	0	0
Backpack	1
Berserk	1
Computer area map	1
Miscellaneous	1-2	3	4-5
Deathmatch start	4
Teleport landing	14
Fireblu barrel	1

External links

• 1x1 demos at the Doom Speed Demo Archive