MAP20: Janssen (Zone 400)

Zone 400 maps 12-20
MAP12: Dagon MAP13: Lipperhey MAP14: Dulcinea MAP15: Majriiti MAP16: Hypatia MAP17: Ugarit MAP18: Halla MAP19: Viriato MAP20: Janssen
01 02 03 04 05 06 07 08 09 10 11 (12 - 20) 21 22 23 24 25 26 27 28 29 30 Secret maps: 31 32 33

This level occupies the map slot MAP20. For other maps which occupy this slot, see Category:MAP20.

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

MAP20: Janssen is the twentieth map of Zone 400. It was designed by Paul Corfiatis, who also wrote the music track for this level, "Amphiuma". The par time defined in MAPINFO is 1:45.

Walkthrough

Map of Janssen

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. Head outside, then quickly run back south and east to a soul sphere before it rises. (sector 37)
2. Pick up the red key, then go back to the blue door to find another wall down with a plasma gun, an energy cell pack, medikits, and a green armor. (sector 43)

Bugs

Straferunning through the exit can lead to a linedef skip and softlock.

Speedrunning

Current records

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

Run	Time	Player	Date	File	Notes
UV speed	0:58.06	liveincity	2021-08-05	z420-058.zip
NM speed
UV max	3:05.57	BFGandorf	2024-06-19	z420-30557.zip
NM 100S
UV -fast	7:12.71	BiZ	2021-08-30	z420f712.zip
UV -respawn
UV Tyson
UV pacifist	1:05.60	Billa	2021-11-04	z420p105.zip
NoMo	0:49.77	AxeL	2021-11-28	z420o049.zip

The data was last verified in its entirety on July 20, 2024.

Deathmatch

Player spawns

This level contains eight spawn points:

1. facing north. (thing 409)
2. facing east. (thing 410)
3. facing east. (thing 411)
4. facing east. (thing 412)
5. facing west. (thing 413)
6. facing north. (thing 414)
7. facing south. (thing 415)
8. facing north. (thing 416)

Statistics

Map data

Things	468
Vertices	360*
Linedefs	400
Sidedefs	584
Sectors	106

* The vertex count without the effect of node building is 293.

Things

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

Single-player
Monsters	1-2	3	4-5
Zombieman	7	8	8
Shotgun guy	8	9	9
Heavy weapon dude	13	24	33
Imp	47	50	55
Demon	4	8	8
Spectre	3	5	5
Revenant	5	5	9
Cacodemon	10	17	21
Pain elemental	1	2	2
Baron of Hell	2
Arachnotron	3	4	2
Mancubus	1	2	2
Arch-vile	1
Spiderdemon	1
Weapons	1-2	3	4-5
Super shotgun	1
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
Box of bullets	4
4 shotgun shells	2
Box of shotgun shells	5
Rocket	22
Box of rockets	4
Energy cell	7
Energy cell pack	3
Health & Armor	1-2	3	4-5
Stimpack	5
Medikit	20
Armor	2
Items	1-2	3	4-5
Armor bonus	5
Health bonus	5
Supercharge	1
Megasphere	1
Backpack	2
Berserk	1
Keys	1-2	3	4-5
Blue skull key	1
Red skull key	1
Miscellaneous	1-2	3	4-5
Exploding barrel	65
Teleport landing	12

Multiplayer
Monsters	1-2	3	4-5
Zombieman	7	8	8
Shotgun guy	8	9	9
Heavy weapon dude	13	24	33
Imp	47	50	55
Demon	4	8	8
Spectre	3	5	5
Revenant	5	5	11
Cacodemon	18	25	29
Pain elemental	1	2	2
Baron of Hell	2
Arachnotron	3	4	2
Mancubus	1	2	2
Arch-vile	3	3	5
Spiderdemon	1
Cyberdemon	2
Weapons	1-2	3	4-5
Chainsaw	1
Shotgun	1
Super shotgun	2
Chaingun	1
Rocket launcher	2
Plasma gun	2
BFG9000	1
Ammunition	1-2	3	4-5
Box of bullets	6
4 shotgun shells	2
Box of shotgun shells	7
Rocket	22
Box of rockets	6
Energy cell	7
Energy cell pack	5
Health & Armor	1-2	3	4-5
Stimpack	5
Medikit	20
Armor	2
Items	1-2	3	4-5
Armor bonus	5
Health bonus	5
Supercharge	1
Megasphere	2
Backpack	2
Berserk	1
Partial invisibility	1
Keys	1-2	3	4-5
Blue skull key	1
Red skull key	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Deathmatch start	8
Exploding barrel	65
Teleport landing	12

External links

• Zone 400 demos at the Doom Speed Demo Archive