MAP20: Mountain Base Atlas (The Joy of Mapping 3)

The Joy of Mapping 3 maps 12-20
MAP12: Fortress of Blood MAP13: Dandy and Sandy MAP14: Sand Wedge MAP15: Subterranean Headaches MAP16: Slimy Nook MAP17: Midal MAP18: Library of Horrors MAP19: Vacant MAP20: Mountain Base Atlas
01 02 03 04 05 06 07 08 09 10 11 (12 - 20) 21 22 23

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

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MAP20: Mountain Base Atlas is the twentieth map of The Joy of Mapping 3: Mandatory Joy. It was designed by Fenes Octavian (DooM_RO) and uses the music track "Parhelion" by James Paddock (Jimmy). The par time defined in MAPINFO is 1:50.

Walkthrough

Map of Mountain Base Atlas

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 east from the super shotgun, then south through the crates until you find a switch. Press it and head back to the super shotgun after pressing the switch, then go south to pick up a rocket launcher. (sector 8)
2. Head east from the super shotgun then onto the balcony to the east. Enter the inner hall and use the switch. Head west from there to get a green armor. (sector 100)
3. At the east side, go east of the walkway and use the gray wall to the north. Follow this path up and around to get boxes of rockets, a medikit, and a berserk pack. (sector 133)
4. At the north end, enter a small room with a red floor and head to the north side. Open the east wall to get a megaarmor. (sector 182)
5. Go through the northwest cave to the southeast. Use a crate to the north and the switch behind it to open a path in the cave going south. Take that path to get a soul sphere. (sector 248)

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 February 20, 2023.

Statistics

Map data

Things	227
Vertices	2203*
Linedefs	2169
Sidedefs	3529
Sectors	420

* The vertex count without the effect of node building is 1777.

Things

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

Single-player
Monsters	1-2	3	4-5
Shotgun guy	13
Heavy weapon dude	16
Imp	26
Demon	13
Spectre	2
Revenant	18
Cacodemon	3
Hell knight	2
Arachnotron	6
Mancubus	3
Arch-vile	5
Cyberdemon	1
Weapons	1-2	3	4-5
Super shotgun	1
Chaingun	1
Rocket launcher	2
Plasma gun	1
Ammunition	1-2	3	4-5
Clip	8
Box of bullets	2
4 shotgun shells	27
Rocket	12
Box of rockets	17
Energy cell pack	1
Health & Armor	1-2	3	4-5
Stimpack	3
Medikit	16
Armor	1
Megaarmor	1
Items	1-2	3	4-5
Health bonus	2
Supercharge	1
Berserk	1
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Miscellaneous	1-2	3	4-5
Teleport landing	8

Multiplayer
Monsters	1-2	3	4-5
Shotgun guy	13
Heavy weapon dude	16
Imp	26
Demon	13
Spectre	2
Revenant	18
Cacodemon	3
Hell knight	2
Arachnotron	6
Mancubus	3
Arch-vile	5
Cyberdemon	1
Weapons	1-2	3	4-5
Super shotgun	1
Chaingun	1
Rocket launcher	2
Plasma gun	1
Ammunition	1-2	3	4-5
Clip	8
Box of bullets	2
4 shotgun shells	27
Rocket	12
Box of rockets	17
Energy cell pack	1
Health & Armor	1-2	3	4-5
Stimpack	3
Medikit	16
Armor	1
Megaarmor	1
Items	1-2	3	4-5
Health bonus	2
Supercharge	1
Berserk	1
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Teleport landing	8