E1M4: Atmospheric Processor (Dawn of the Dead)

Dawn of the Dead maps
E1M1: Warp Station E1M2: The Reactor E1M3: Space Port E1M4: Atmospheric Processor E1M6: Fortress of Hate E1M7: Death Awaits E1M8: At the Heart of it All E1M9: Hunted Down

This level occupies the map slot E1M4. For other maps which occupy this slot, see Category:E1M4.

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E1M4: Atmospheric Processor is the fourth map of Dawn of the Dead. It was designed by Jan Van der Veken and uses the music track "The Demons from Adrian's Pen," composed for Doom by Robert Prince.

Walkthrough

Map of Atmospheric Processor

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. At the start, press on the "POISON" sign to the right of the center platform to find a radiation suit. This counts as two secrets. (sector 4)
2. See Secret #1. (sector 78)
3. Open the red door and head left up the steps to the next room. There are armor bonuses on the ground forming an arrow at a wall here. Press on that wall to find a computer area map and a backpack, looking out for the trap that springs upon entering the secret. (sector 93)

Speedrunning

Current records

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

Run	Time	Player	Date	File	Notes
UV speed
NM speed
UV max	12:23.40	Andy Olivera	1997-09-24	doduvaro.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on December 7, 2021.

Deathmatch

Player spawns

This level contains four spawn points:

1. facing east. (thing 4)
2. facing east. (thing 5)
3. facing east. (thing 6)
4. facing east. (thing 7)

Statistics

Map data

Things	504
Vertices	1840*
Linedefs	1985
Sidedefs	2678
Sectors	354

* The vertex count without the effect of node building is 1615.

Things

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

Single-player
Monsters	1-2	3	4-5
Zombieman	30	37	44
Shotgun guy	14	40	53
Imp	23	54	77
Lost soul	3	6	9
Demon	6	11	14
Spectre	2	10	16
Cacodemon	1	2	1
Baron of Hell	0	1	2
Weapons	1-2	3	4-5
Chainsaw	1
Shotgun	3	2	2
Chaingun	3
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
Clip	15
Box of bullets	6
4 shotgun shells	9
Box of shotgun shells	1
Box of rockets	1
Energy cell	6
Energy cell pack	0	1	1
Health & Armor	1-2	3	4-5
Stimpack	20
Medikit	5	6	6
Armor	3
Megaarmor	1
Items	1-2	3	4-5
Armor bonus	27
Health bonus	23
Supercharge	1
Backpack	1
Computer area map	1
Partial invisibility	1
Radiation shielding suit	4	3	2
Keys	1-2	3	4-5
Red keycard	1
Yellow keycard	1
Miscellaneous	1-2	3	4-5
Exploding barrel	44
Teleport landing	4

Multiplayer
Monsters	1-2	3	4-5
Zombieman	30	37	44
Shotgun guy	14	40	53
Imp	23	54	77
Lost soul	3	6	9
Demon	6	11	14
Spectre	2	10	16
Cacodemon	1	2	1
Baron of Hell	0	1	2
Weapons	1-2	3	4-5
Chainsaw	1
Shotgun	3	2	2
Chaingun	3
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
Clip	15
Box of bullets	6
4 shotgun shells	9
Box of shotgun shells	1
Box of rockets	1
Energy cell	6
Energy cell pack	0	1	1
Health & Armor	1-2	3	4-5
Stimpack	20
Medikit	5	6	6
Armor	3
Megaarmor	1
Items	1-2	3	4-5
Armor bonus	27
Health bonus	23
Supercharge	1
Backpack	1
Computer area map	1
Partial invisibility	1
Radiation shielding suit	4	3	2
Keys	1-2	3	4-5
Red keycard	1
Yellow keycard	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Deathmatch start	4
Exploding barrel	44
Teleport landing	4

External links

• Dawn of the Dead demos at the Doom Speed Demo Archive