MAP04: Hydrosfear (Caverns of Darkness)


Caverns of Darkness maps 01-10

(01 - 10)
Secret maps: 11 12

This level occupies the map slot MAP04. For other maps which occupy this slot, see Category:MAP04.

MAP04: Hydrosfear is the fourth map of Caverns of Darkness. It was designed by NokturnuS and uses the music track "The Demon's Dead" by Robert Prince.

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Map of Hydrosfear
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.


Other points of interest[edit]


  1. At the mixing plant near the center (behind the yellow doors), follow west from water into the brown sludge and drop down to get boxes of rockets and a computer area map. (sector 397)
  2. In the same area where Secret #1 is, get on a small platform with the shotgun shells on it that floats in the water and quickly head west, just south of the steps to the north. Open the northwest wall and go on the west floor before it rises up. (sector 881)
  3. Ride Secret #2 up and head west to get a soul sphere. (sector 883)
  4. On the path leading to the yellow key, head into a small cave to the west and use the south wall to find a switch. Flip it and come back to the yellow key room to find it has expanded, with shotgun shells and a soul sphere behind the key. (sector 526)


Demo files[edit]

Areas / screenshots[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 29:34 vdgg 2010-09-30
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on December 13, 2021.


Map data[edit]

Things 1118
Vertices 12349*
Linedefs 11459
Sidedefs 18284
Sectors 972
* The vertex count without the effect of node building is 10222.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]