MAP28: Infernal Fortress (Dominus Diabolicus)

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Dominus Diabolicus maps
Ep.1: Earth Under Siege

01 02 03 04 05 06 07 08 09 10 11

Ep.2: Return to Sender

12 13 14 15 16 17 18 19 20

Ep.3: Infernal Reckoning
Secret levels

31 32 33

This level occupies the map slot MAP28. For other maps which occupy this slot, see Category:MAP28.
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MAP28: Infernal Fortress is the twenty-eighth map of Dominus Diabolicus. It was designed by bofu, who also composed its music track "Tick Tock, You're Dead". The par time is 10:05.

Walkthrough[edit]

Map of Infernal Fortress
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.

Essentials[edit]

Other points of interest[edit]

Secrets[edit]

  1. Lower the west wall in the central room to get a berserk pack. (sector 1244)
  2. Enter the room north of the central building and use a marble wall to the southwest to reveal a switch. Press it to raise steps to the north wall. Open the wall for a megaarmor. (sector 391)
  3. In the first courtyard, get on the northeast ledge and jump south to the rock, which reveals a switch to the east. Press it, then get back onto the ledge and head inside to the dark room to the north. Go west to find health bonuses and a lift. Take the lift down to get armor bonuses. To the south are more health and armor bonuses. (sector 1858)
  4. In the yellow key area, go to the southwest room and lower a wall at the southwest end for a soul sphere. (sector 2347)
  5. At the south end, complete the west cage area and then go back to the previous hall. Two compartments on the west wall will be open. Enter the northwest one and open the back wall. Follow the passage and the two doors here will contain energy cells. The teleporter leads to a computer area map and more energy cells. (sector 1731)

Bugs[edit]

Demo files[edit]

Areas / screenshots[edit]

Speedrunning[edit]

Routes and tricks[edit]

Current records[edit]

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

Run Time Player Date File Notes
UV speed
NM speed
UV max 23:06.26 bnbhehe 2026-05-09 DominusD28m230626.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on May 28, 2026.

Deathmatch[edit]

Map of MAP28's deathmatch arena

This level includes its own, separate deathmatch arena.

Player spawns[edit]

This arena contains six spawn points:

  1. facing north. (thing 1048)
  2. facing north-west. (thing 1049)
  3. facing south-west. (thing 1050)
  4. facing south. (thing 1070)
  5. facing south-east. (thing 1087)
  6. facing north-east. (thing 1088)

Things[edit]

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

Statistics[edit]

Map data[edit]

Things 1158
Vertices 14636*
Linedefs 15381
Sidedefs 26072
Sectors 3405

* The vertex count without the effect of node building is 12320.

Things[edit]

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

Technical information[edit]

Inspiration and development[edit]

Trivia[edit]

See also[edit]

Sources[edit]

External links[edit]