MAP03: ARENA! (Castle Phobos)


Castle Phobos maps
This level occupies the map slot MAP03. For other maps which occupy this slot, see Category:MAP03.
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MAP03: ARENA! is the third map of Castle Phobos. It was designed by David Shrock and uses the music track "".


Map of ARENA!
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. South of the walkway leading to the red key area is a curved staircase. Part way up the staircase is a secret door on the west wall leading to a box of bullets (two on multiplayer), a shotgun guy (not on easy skill), two stimpacks (one on hard skill), and another stimpack on multiplayer. (sector 54)
  2. Head south from the walkway leading to the red key room. To the east is a door leading into a room. This room has a secret door on its east wall leading to an imp and a stimpack. (sector 289)
  3. Descending the steps into the red key area briefly lowers walls in the north-west and north-east corners of the room. The north-eastern one contains an imp, a box of shotgun shells, and a health bonus. If you run into the room quickly enough, it is also possible to access a room to the south containing a spectre (two on hard skill), a health bonus, a plasma rifle, and a berserk. On multiplayer there is also a partial invisibility, a medikit, and a box of bullets. (sector 77)
  4. Behind the wall north-west of the red key (see #3) is a teleporter leading to eight health bonuses and three armor bonuses. (sector 285)
  5. Just before the blue key is a lift. Just west of the lift is an unmarked secret door to the south leading to a backpack, a box of bullets, and a health bonus. There are also two switches here - the easternmost one opens up a door in the long east-west corridor in the south of the level. The western switch opens up #19. (sector 209)
  6. The sector at the top of the lift next to the blue key counts as a secret. (sector 130)
  7. Heading west from #6 leads to a room with 2-5 imps. There is an unmarked secret door to the north leading to a health bonus and a partial invisibility. (sector 292)
  8. In the south of the level is a long east-west corridor. The south wall has two unmarked secret doors (both further west than any of the visible doors) both leading to the same room, with a partial invisibility, a medikit (two in multiplayer), three shotgun guys, and two demons (one in easy skill). Only the eastern door can be opened from the outside. (sector 223)
  9. At the end of the long corridor in the south of the level is a narrow corridor with blue lights on the ground. This leads to a dark room which has an unmarked secret door on the north wall, leading to a spectre. (sector 279)
  10. The back wall of #9 is a secret door leading to a room which is empty in single-player but contains an armor in multiplayer. (sector 281)
  11. The east wall of #10 is a secret door leading to a room with a box of bullets. (sector 283)
  12. Shooting the back wall of #11 opens up a door to the west of #10 leading to a room with an energy cell. (sector 294)
  13. The west wall of #12 is a secret door leading to a spectre (not on easy skill), a box of bullets, and a computer area map. (sector 296)
  14. Shooting the north wall of #12 opens up the north wall of #13, revealing a teleporter. (sector 315)
  15. The teleporter in #14 leads to a room whose north wall is a secret door leading to a room the other side of a grate that was passed earlier. The room contains a stimpack, a health bonus, and an energy cell pack. On multiplayer there is also a box of rockets and a plasma rifle. (sector 301)
  16. From the entrance to #9, run back along the path with the lights. A wall, near where there are initially three health bonuses, briefly lowers (it can be lowered repeatedly), revealing a heavy weapon dude, two shotgun guys (one on easy skill), and an invulnerability. (sector 310)
  17. To the south of #15 is an area that overlooks the room west of the outdoor area. From here, head through the door to the north. There is an unmarked secret door to the east leading to two shotgun guys (one in easy skill), a health bonus, a clip, and (on easy skill only) a medikit. (sector 181)
  18. Walking along the narrow corridor with the lights (see #9) opens up a secret door in the north of #17, where there is a shotgun guy, an energy cell pack, and a medikit. (sector 298)
  19. From #17, head back out, down the lift, round to the left, and through the door to the south. You will enter a 'church' room. The western switch in #5 opens up a door to the west, leading to a soul sphere and a megaarmor. (sector 261)
  20. From the top of the stairs in the centre of the long corridor in the south, run west down the stairs and along the corridor to the curved staircase. A wall is briefly lowered (it can be lowered repeatedly) revealing two shotgun guys, a heavy weapon dude (not in easy skill), two clips and an energy cell pack. Stepping on the light patch in this room re-lowers the wall. (sector 226)
  21. Shooting the north wall of #12 also opens up a teleporter near the exit. After visiting #19, go through this teleporter. A soul sphere and energy cell will be available to the east. There is a door to the north leading back to #16. (sector 326)


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 12, 2021.


Player spawns[edit]

This level contains four spawn points:

  1. facing east. (thing 43)
  2. facing north. (thing 44)
  3. facing north. (thing 45)
  4. facing south. (thing 46)


Map data[edit]

Things 425
Vertices 1291*
Linedefs 1488
Sidedefs 2011
Sectors 329
* The vertex count without the effect of node building is 1156.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]