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This level occupies the map slot E1M8. For other maps which occupy this slot, see Category:E1M8.

Doomsday of UAC (commonly known by its filename UAC_DEAD) is a single-level PWAD designed by Leo Martin Lim. As part of their 10 Years of Doom feature, Doomworld named it one of the ten best WADs of 1994.

One of the first ever fan-made Doom mods, UAC_DEAD features an attempt at creating realistic-looking vehicles and environments. It contains a replacement sky graphic, and uses careful flat and texture choices in places to simulate colored lighting. It also includes the first known instance of the self-referencing sectors trick, used to create both invisible stairs and an invisible chamber enclosing a cyberdemon.

UAC_DEAD was originally released June 23, 1994. It also appeared on Maximum Doom as UAC_DEAD.WAD, as UAC_DEA2.WAD, and as E1M4 of DEATHM2.WAD.

Walkthrough

Map of Doomsday of UAC

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

Essentials

Other points of interest

Secrets

  1. (sector 82)
  2. (sector 62)
  3. (sector 109)
  4. (sector 193)
  5. (sector 351)
  6. (sector 277)

Bugs

Playing this map on UV exceeds the savegame buffer size in Doom v1.2.

Demo files

Areas / screenshots

Speedrunning

Routes and tricks

Current records

The records for the map on the Doomed Speed Demos Archive are:

Run Time Player Date File Notes
UV speed 4:50 Never Again 2003-04-23 uacd_450.zip
NM speed 6:20 Never Again 2003-04-24 uacdn620.zip
UV max 12:35 Never Again 2003-04-23 uacd1235.zip
NM100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

Miscellaneous demos

Run Time Player Date File Notes
UV -fast 35:51 Matt "Viper" Maier 1996-10-06 uac_dead.zip

Deathmatch

Statistics

Map data

Things 518
Vertexes 2113
Linedefs 2608
Sidedefs 4035
Sectors 442

Things

Doomsday of UAC contains the following numbers of things per skill level:

Monsters 1-2 3 4-5
Zombieman 10 10 13
Shotgun guy 33 33 48
Imp 61 61 91
Demon 5 5 8
Spectre 11 11 18
Lost soul 17 17 27
Cacodemon 6 6 13
Baron of hell 3 3 3
Cyberdemon 1 1 1
Powerups 1-2 3 4-5
Armor 2 2 2
Backpack 1 1 1
Berserk 1 1 1
Computer area map 1 1 1
Medikit 16 16 14
Megaarmor 2 2 2
Partial invisibility 1 1 1
Radiation shielding suit 2 2 2
Stimpack 1 1 1
Supercharge 3 3 3
Weapons 1-2 3 4-5
Chainsaw 1 1 1
Chaingun 1 1 1
Rocket launcher 1 1 1
Plasma gun 1 1 1
BFG9000 1 1 1
Ammunition 1-2 3 4-5
Box of bullets 8 8 6
Box of shotgun shells 9 9 9
Box of rockets 5 5 4
Energy cell pack 7 7 6
Keys 1-2 3 4-5
Blue keycard 1 1 1
Red skull key 1 1 1
Yellow keycard 1 1 1

Technical information

This map occupied the E1M8 slot in order to use the special tag 666 twice, exploiting a peculiarity of Doom's handling when more than one boss monster is present in the map. This peculiarity was changed in The Ultimate Doom, and as the Doom source release inherited the change, the map is unplayable in many modern source ports (because the red key cannot be obtained). Chocolate Doom and PrBoom have option settings which allow the trick to operate as intended, and ZDoom and GZDoom identify the level through its checksum and automatically apply the correct compatibility flag.

Inspiration and development

The sky texture in Doomsday of UAC is taken from "Nightfall" (NIGHTFAL.WAD), a single-level PWAD designed by Josh "Phallus" Fallon and released on June 14, 1994.

Trivia

The invisible stairs are meant to be reminiscent of the film Indiana Jones and the Last Crusade.

Sources

External links

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