MAP30: The Lair (Doom 64)


Doom 64 secret maps

01 02 03 04 05 06 07 08 09 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 28
Secret maps
Fun levels: 25 26 27
Title map: 33
The Lost Levels: 34 35 36 37 38 39
Fun level: 40

This level occupies the map slot MAP30. For other maps which occupy this slot, see Category:MAP30.

MAP30: The Lair is the second secret level of Doom 64, designed by Danny Lewis. It uses the music track "Lamentation Of The Forgotten". It is accessible from Level 12, Altar Of Pain and shares background music with it. This level consists of a medium-sized structure with an upper, open area and a winding basement that houses monsters of varying degrees of strength and, for all intents and purposes, this is where the player will first come across arachnotrons (if the player did not already go through Level 32, Hectic). The objective of the level is to obtain the Demon Key.


Map of The Lair
Letters in italics refer to marked spots on the map. Sector and Thing numbers in boldface are secrets which count toward the end-of-level tally.


As in MAP29: Outpost Omega, the main objective in the level is to find the Demon Key, which is located in the center of the building atop a high pillar. In order for the player to get it, he must first head to a closed-off section of the upper deck to the right of the pillar (when facing it from the other end of the room), thereby activating a tripwire that lowers a portion of the far wall, exposing a shootable switch. After shooting it, the player must run to the adjacent section on the other side of the upper area where another shootable switch is located. Shooting that will lower the pillar, giving the player access to the Demon Key. After this is accomplished, the player must then continue through the building into the basement, battle hordes of demons, and find the yellow key. This gives the player access to a switch which will bring about the exit, which is back in the starting room.



  1. The area with the demon key itself counts as a secret. (sector 123)
  2. As you enter the room housing the yellow key, you will see a mega armor perched on a ledge to your left. Proceed until you are facing the yellow key with two more paths forked on each sides. Interact with the demon statue directly to your right, and you can faintly hear the sounds of a wall being lowered. Follow the left fork and through the now opened corridor to pick up the mega armor. (thing 80)
  3. Once you pick up the mega armor, you can hear a faint sound of something being teleported in close by. Return to the fork before the yellow key and head deeper into the right fork to discover a freshly spawned soulsphere. Pick it up to make the secret count. (thing 81)
  4. While facing the yellow key at the start of Secret #2, head into the left fork and interact with the demon statue. Return up the winding staircase to find a niche in its inner column has opened, presenting a berserk pack. (thing 94)


In the same room where the first switch to lower the lift for the demon key appears, drop down from the window leading to the center stairs to lower two smaller lifts in the tunnel leading to the yellow key, both containing a large bullet box. Repeat the same procedure with the room across the stairs to reveal a room with the plasma rifle where multiple health bonuses are lined up on a ledge, which will also allow the collection of the last health bonus in the corner that is not collectible normally.


Routes and tricks[edit]

By using lag clipping on the southern-most wall of the map after being raised onto the ledge by the blue key pillar, it is possible to access and activate a push-action linedef with action 124, Exit Level, which is meant for use by macro 17 to transfer this special to the level's actual exit switch. Because action 124 exits to the level indicated by the linedef's tag, and the line is tagged 70 for identification within the macro, it will cause the player to attempt to exit to MAP70 when activated directly. The game detects this in the finale code as a victory condition, since the destination map number is greater than 32, and triggers the ending of the game in the same manner as if MAP28: The Absolution had been defeated. Under the usual rules of communities such as the Speed Demos Archive and, this is considered a legitimate manner of beating the game for "Any %" completion. Discovery of this trick has lowered the world record for the game's completion to under sixteen minutes.

Current records[edit]


Map data[edit]

Things 149
Vertices 1840*
Linedefs 1653
Sidedefs 2468
Sectors 131
* The vertex count without the effect of node building is 1319.


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

Monsters 1-2 3 4
Imp 2 6 6
Nightmare imp 6 11 16
Lost soul 13 19 25
Spectre 3 5 7
Hell knight 2 4 5
Arachnotron 0 1 2
Weapons 1-2 3 4
Shotgun 1
Super shotgun 1
Chaingun 1
Rocket launcher 1
Plasma gun 1
Ammunition 1-2 3 4
Box of bullets 5
4 shotgun shells 14
Box of shotgun shells 3
Rocket 4
Health & Armor 1-2 3 4
Stimpack 2
Medikit 3
Megaarmor 1
Items 1-2 3 4
Health bonus 24
Supercharge 2
Berserk 1
Purple demon key 1
Keys 1-2 3 4
Blue skull key 1
Yellow skull key 1
Miscellaneous 1-2 3 4
Teleport landing 1
Trigger 4


  • This level possesses a key-activated tripwire, something that has otherwise never been used in a Doom title. The player needs to have the yellow key in their possession to activate the tripwire that will expose the exit-bringing switch; merely walking through without it will result in an "MMPH!" pushing voice and a message stating "YOU NEED THE YELLOW KEY".

External links[edit]