MAP03: Cloud of Flame (Osiris)


Osiris maps
This level occupies the map slot MAP03. For other maps which occupy this slot, see Category:MAP03.
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MAP03: Cloud of Flame is the third map of Osiris. It was designed by Glen Payne and Marshal Bostwick, and uses the music track "".


Map of Cloud of Flame
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. After teleporting from the northern room of hieroglyphs, you'll be in a larger brown brick hallway. Look on the west wall for a light that is lower than the rest, signaling a hidden passage. Behind it is a maze. Head west, south, east, and then open the wall to the south to get a machine gun. (sector 289)
  2. The switch in the northern room of hieroglyphs opens up two bars in the hallway south of that room, which is the hallway with blinking lights. Return to that hallway and get past the bars, then press on the wall with the scarab on it to find a box of ammo and skull power. (sector 38)
  3. From the previous secret, head back north, west, north until the second passage to the west, west a bit, north, west, and use the south wall to get a stimpack. (sector 287)
  4. Grabbing the yellow key triggers a trap with corridors to the north, south, and east opening up. If you enter the east or south corridors and press the wall, you will reach a secret area with a backpack and a stimpack. Both doors leading to the secret area count as separate secrets. (sector 206)
  5. See Secret #4. (sector 205)
  6. After triggering the yellow key trap, enter the east corridor, then backtrack to the starting point to find two compartments open to the north and south. Enter the south compartment and shoot the wall with the scarab to access the flame thrower. (sector 294)
  7. At the curvy wooden hallway at the west side of the map, find the section of wood without metal on it and open it to find skull power, a fuel tank, stimpacks, and shotgun shells. (sector 139)
  8. After entering the previous secret, head out, then north, east, east through the corridor, then south and open the door to be back at the long hallway. A new opening is nearby with a chaingunner and a medikit inside. Open the wall at the back to find a medikit and health bonuses. (sector 291)
  9. In the large lava-filled area at the south end, go to the southeast and open the wooden wall to find a flame thrower and fuel tanks. (sector 280)


A radiation shielding suit (Thing 421) has no flags set for any of the three difficulty classes, so it does not actually appear in the level. The same goes for the following multiplayer-only things: an energy cell (416), an energy cell pack (388), a fuel tank (400), an armor (463), and a partial invisibility (442).

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 December 7, 2021.


Player spawns[edit]

This level contains only one spawn point, making it unplayable in deathmatch mode:

  1. facing north. (thing 9)


Map data[edit]

Things 668
Vertices 1661*
Linedefs 1830
Sidedefs 2716
Sectors 402
* The vertex count without the effect of node building is 1436.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]