The starting areaThe starting area
Author Eddie Nguyen
Port Vanilla Doom
Year 1994
Link Doomworld/idgames
This level occupies the map slot E2M4. For other maps which occupy this slot, see Category:E2M4.
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Sapidus is a single-level PWAD for Doom. It was released in 1994 by Eddie Nguyen, and is the fourth in a series of single-level wads, following UCA, Talpoida, and Diopatra. Unlike the other levels, it had two releases: SAPIDUS.WAD on June 5, 1994; and SAPIDUSB.WAD on June 9, 1994, the only version available on the idgames archive. The second release fixes an error with the slime pits in the level (see Bugs).

This level appears on Maximum Doom as SAPIDUS2.WAD.


Map of Sapidus
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. Immediately to the south of the north-western room, the eastern door has a secret door leading to a room with a box of bullets and a medikit. (sector 31)
  2. Immediately north of the medikit in #1 is another secret door leading to a room with three spectres and a medikit. There is a secret lift in the south-west of this room, which on pressing reveals two switches. The eastern one raises a bridge ahead, on the other side of which is a door leading to a room with a spectre and two lost souls. There is another secret door in the south-west of this room. (sector 180)
  3. Go west from the north-eastern room. The northern wall has a secret door leading to a backpack. (sector 79)


In the original release, SAPIDUS.WAD, the slime pits in each corner of the level (sector 15) use sector effect 11, a 20% damaging floor that hurts you through the radiation suit, but also ends the level when your health drops below 11%, enabling an unintentionally quick exit. The second release, SAPIDUSB.WAD, changes this to sector effect 16, a 20% damage floor with a small chance of hurting you through a radiation suit, to fix the error.

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 0:08.26 Napsalm 2023-10-07 Cross-listed from Pacifist
NM speed
UV max 11:55.34 Eric Baker (The Green Herring) 2010-04-12 Plays back with sapidusb.wad
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist 0:08.26 Napsalm 2023-10-07

The data was last verified in its entirety on November 2, 2023.


Player spawns[edit]

This level contains ten spawn points:

  1. facing west. (thing 203)
  2. facing west. (thing 204)
  3. facing west. (thing 205)
  4. facing west. (thing 206)
  5. facing north. (thing 207)
  6. facing north. (thing 208)
  7. facing west. (thing 209)
  8. facing west. (thing 210)
  9. facing south. (thing 211)
  10. facing west. (thing 212)


Map data[edit]

Things 371
Vertices 1092*
Linedefs 1243
Sidedefs 1658
Sectors 189
* The vertex count without the effect of node building is 938.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]