MAP04: The Chasm (Earth)

Earth maps
MAP01: The Ruins MAP02: The Tomb MAP03: Mines of Moria MAP04: The Chasm MAP05: Strategic Defense Command MAP06: Observation Station MAP07: The Emerald Tower MAP08: Ammo Pit MAP09: Islands MAP10: The Hill

This level occupies the map slot MAP04. For other maps which occupy this slot, see Category:MAP04.

MAP04: The Chasm is the fourth map of Earth. It was designed by Roger Ritenour and uses a MIDI rendition of "Self Control" by Laura Branigan — sequenced by Anton Baranov (Quake/\/\an) — as its music track.

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

Walkthrough

Map of The Chasm

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. From the rocky ledge where the blue key is, you can jump to the rock below containing an armor bonus and a box of shotgun shells. (sector 153)
2. Enter the cave at the start, and when you see two candles in the corner, lower the wall between them. Follow this passage to find arachnotrons guarding a rocket launcher and two medikits. (sector 159)

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	6:09.26	Maya	2023-08-21	earth04m609.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist
NoMo	0:46.66	paymentplan	2025-11-13	earth04o046.zip

The data was last verified in its entirety on November 24, 2025.

Deathmatch

Player spawns

This level contains four spawn points:

1. facing north-east. (thing 7)
2. facing south-west. (thing 8)
3. facing south-west. (thing 9)
4. facing north-east. (thing 10)

Statistics

Map data

Things	215
Vertices	659*
Linedefs	648
Sidedefs	1071
Sectors	178

* The vertex count without the effect of node building is 476.

Things

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

Single-player
Monsters	1-2	3	4-5
Zombieman	2
Shotgun guy	12	13	13
Heavy weapon dude	0	0	1
Imp	26	29	33
Demon	9	10	11
Cacodemon	1	5	8
Hell knight	2	3	3
Baron of Hell	1	9	10
Arachnotron	2	5	6
Mancubus	2	5	6
Arch-vile	0	0	1
Weapons	1-2	3	4-5
Shotgun	1
Super shotgun	1
Chaingun	1
Rocket launcher	1
Ammunition	1-2	3	4-5
Box of bullets	12
Box of shotgun shells	12
Box of rockets	3
Health & Armor	1-2	3	4-5
Stimpack	4
Medikit	12
Armor	2
Items	1-2	3	4-5
Armor bonus	2
Health bonus	5
Backpack	1
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Yellow keycard	1
Miscellaneous	1-2	3	4-5
Teleport landing	10

Multiplayer
Monsters	1-2	3	4-5
Zombieman	2
Shotgun guy	12	13	13
Heavy weapon dude	0	0	1
Imp	26	29	33
Demon	9	10	11
Cacodemon	1	5	8
Hell knight	2	3	3
Baron of Hell	1	9	10
Arachnotron	2	5	6
Mancubus	2	5	6
Arch-vile	0	0	1
Weapons	1-2	3	4-5
Shotgun	1
Super shotgun	1
Chaingun	1
Rocket launcher	1
Ammunition	1-2	3	4-5
Box of bullets	12
Box of shotgun shells	12
Box of rockets	3
Health & Armor	1-2	3	4-5
Stimpack	4
Medikit	12
Armor	2
Items	1-2	3	4-5
Armor bonus	2
Health bonus	5
Backpack	1
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Yellow keycard	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Deathmatch start	4
Teleport landing	10

External links

• Earth demos at the Doom Speed Demo Archive