E2M4: The Marrow Engine (Strange Aeons)

Strange Aeons maps
The Shattered City M1 M2 M3 M4 M5 M6 M7 M8 M9
The Stagnant Fortress E2M1: Beast Depot E2M2: Power Station E2M3: Ore Devourer E2M4: The Marrow Engine E2M5: Juggernaut E2M6: Eldritch Research E2M7: Underworld Gate E2M8: Siege of Pnath E2M9: Petting Zoo
The Land That Time Forgot M1 M2 M3 M4 M5 M6 M7 M8 M9
The Plateau of Leng M1 M2 M3 M4 M5 M6 M7 M8 M9
Out of the Aeons M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E2M4. For other maps which occupy this slot, see Category:E2M4.

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E2M4: The Marrow Engine is the fourth map in episode The Stagnant Fortress of Strange Aeons. It was designed by Mike MacDee (Impie) and uses the music track "". The par time defined in MAPINFO is 2:00.

Walkthrough

Map of The Marrow Engine

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. In the big area at the north end, go to the single column near the bloodfalls at the west side. On the right side, press on the column to lower powerups where the bloodfalls are. The one with the soul sphere counts as a secret. (sector 169)
2. In the big area at the north end, enter the east building with two caged blood pits. Use the computer at the east wall where the energy cell pack is and a switch appears in the middle. In the area south of that one, get to the switch column at the west side and use both of them. Go back to the starting area and head south to get a BFG9000. (sector 244)

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
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on June 29, 2022.

Statistics

Map data

Things	282
Vertices	1145
Linedefs	1404
Sidedefs	2028
Sectors	267

Things

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

Single-player
Monsters	1	2	3	4	5	6	7	8
Man from Leng	24	24	24	27	27	28	28	28
Flesh spawn	18	18	18	23	23	23	23	23
Devil	22	22	22	42	42	42	42	42
Flayworm	4	4	4	9	9	9	9	9
Grell	4	4	4	7	7	7	7	7
Death incarnate	0	0	0	2	2	2	2	2
Spawn of Glaaki	3	3	7	9	9	9	9	9
Demon wizard	0	0	0	1	1	1	1	1
Spiderbaby	1	1	3	5	5	5	5	5
Shadow beast	1	1	1	2	2	2	2	2
Weapons	1	2	3	4	5	6	7	8
Rocket launcher	1	1	0	1	1	1	1	1
BFG9000	1
AK47 assault rifle	1
Impaler crossbow	1
Ammunition	1	2	3	4	5	6	7	8
Clip	13
Box of bullets	3
4 shotgun shells	2
Rocket	7
Box of rockets	6
Energy cell	2
Energy cell pack	1
Health & Armor	1	2	3	4	5	6	7	8
Stimpack	5
Medikit	3	3	2	3	3	3	3	3
Armor	2
Megaarmor	1
Items	1	2	3	4	5	6	7	8
Armor bonus	28
Supercharge	1
Berserk	1
Ammo sphere	1
Mutant sphere	1
Keys	1	2	3	4	5	6	7	8
Blue keycard	1
Yellow keycard	1
Miscellaneous	1	2	3	4	5	6	7	8
Teleport landing	2
Voodoo doll	1