E3M2: Infernal Keep (Return to Hadron)

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Return to Hadron maps
Episode 1

M1 M2 M3 M4 M5 M6 M7 M8 M9

Episode 2

M1 M2 M3 M4 M5 M6 M7 M8 M9

Episode 3
This level occupies the map slot E3M2. For other maps which occupy this slot, see Category:E3M2.
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E3M2: Infernal Keep is the second map in the Slayers Swansong episode of Return to Hadron. It was designed by Matt Powell (cannonball) and uses the music track "".


Map of Infernal Keep
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 northwest end, go to the north side of the large block with the faces and use the north side to trigger a switch. Head up the steps, past the crusher to the south, and to the west to find armor bonuses and a teleporter. The teleporter takes you to a secret with rockets and a soul sphere. (sector 187)
  2. Open the yellow door and drop down. Use the north wall with the two skulls to find a radiation suit and armor bonuses. (sector 213)
  3. When you enter the main keep, head east and use the wall with the candle in front of it to reveal a teleporter. This takes you near the starting point, where you can get armor bonuses, a radiation suit, and a plasma gun. (sector 221)


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
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on April 3, 2022.


Map data[edit]

Things 330
Vertices 1769*
Linedefs 1773
Sidedefs 2742
Sectors 228
* The vertex count without the effect of node building is 1539.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]