E3M4: Discipline (Heretic Treasure Chest)

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Heretic Treasure Chest 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 E3M4. For other maps which occupy this slot, see Category:E3M4.

E3M4: Discipline is the fourth map of episode 3 of Heretic Treasure Chest. It was designed by Magicsofa and uses the music track "Elf" from Heretic, created by Kevin Schilder.


Map of Discipline
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.


Open the door in front of you to confront two nitrogolems and a gargoyle then head round to the south side of the room to find a switch, which will open two silver doors on the west and east sides. Go through the east door first to collect an Ethereal Crossbow and ammo, then destroy the undead warriors and sabreclaws that have come through the west door and go through it to find a staircase. Go down the stairs to destroy some nitrogolems then step round the green pillar (which has the green key on top of it) to find a switch that will lower a wall at the top of the stairs; kill any undead warriors and gargoyles that have been released behind you then go up the stairs and through the south doorway to find some nitrogolems and sabreclaws. Press another switch in the north-west corner to lower a lift behind you, which you can ride down to a chamber with a blue trident on the floor.

Enter the next room to find two undead warriors (joined by one or two ghosts on bringest them oneth skill level or higher) then step on the teleporter behind them to reach a grassy area on the west side of the level. Head south past the green block in front of you to find a second, taller block which you can step inside to find a switch, which will lower the pillar holding the green key. After pressing the switch, go round to the east side of the structure to find a grave and press the tombstone, then head north and east to find a teleporter that will return you to the green hall. Head back to the chamber with the blue trident and press the newly-revealed switch on the south wall to lower the lift again, then ride it up and go down the stairs to collect the green key, watching out for any monsters that have teleported in.

With the green key, go back up the stairs; just before you reach the top, go through the opening in the north wall and open the door in front of you to reveal two undead warrior ghosts. Push past them to the exit teleporter, which will send you to E3M5: Mountain of Fire.

Secret exit[edit]

From secret #3, you can step on the north side of the exit teleporter. This will send you to the secret level, E3M9: Man On The Edge.

Other points of interest[edit]

In the room with the green key door, look at the east wall to see a Hellstaff through a window; you can reach it by shooting the switch on the south wall of this chamber.


  1. Exit your starting room and flip the switch to the south to find two new paths open. Take the right one to the Ethereal Crossbow room, then press on the south wall to find a Bag of Holding and two crystal vials. (sector 26)
  2. At the exit room, press on the stained glass to the south to find three Timebombs of the Ancients, a Shadowsphere and Greater Runes. (sector 161)
  3. By entering secret #2, the stained glass on the north side, just north of the exit teleporter, will open up. Inside is an undead warrior ghost and some crystal vials. You need to be both careful not to enter the exit teleporter, and quick enough to enter this secret before it closes, as when it closes, you cannot open it again from the outside. (sector 180)


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
SM speed
SM max
BP speed
BP max
NM speed
NM 100S

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


Player spawns[edit]

This level contains four spawn points:

  1. facing north. (thing 243)
  2. facing west. (thing 246)
  3. facing west. (thing 247)
  4. facing west. (thing 248)


Map data[edit]

Things 302
Vertices 894*
Linedefs 875
Sidedefs 1420
Sectors 184
* The vertex count without the effect of node building is 716.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]