MAP03: Gibbous Grotto (Dimension of the Boomed)


Dimension of the Boomed maps
This level occupies the map slot MAP03. For other maps which occupy this slot, see Category:MAP03.
Under construction icon-yellow.svgThis article about a map is a stub. Please help the Doom Wiki by adding to it.

MAP03: Gibbous Grotto is the third map of Dimension of the Boomed. It was designed by Stephen Wadsworth (Urthar), and the par time is 3:45.


Map of Gibbous Grotto
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 southeast steps in the central cave, get to the bottom and climb the east brick wall to the other side, which has a shotgun and a box of shotgun shells. (sector 309)
  2. At the east side, in the room with the green armor, go to the west wall and find the sword emblem on the south wall. Use it to open the east wall, where you can head south to a BFG9000 and shotgun shells. (sector 1551)
  3. When you see that you can get the silver key, go towards it, but when you hear a lift lower, quickly run west and through the hole to get a megaarmor. (sector 1625)
  4. Head behind the silver key switch and use the switch there, then head to the room north of the switch. Enter the portal to get a BFG9000 (or a plasma gun and energy cells on Hey, Not Too Rough or lower). (sector 2658)
  5. In the central cave, head northwest through the tunnel until you find a berserk pack. (sector 3257)
  6. At the west set of steps in the main cave, jump northeast to the rocks to find shotgun shells and a soul sphere. (sector 3324)


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 February 21, 2022.


Map data[edit]

Things 768
Vertices 11950*
Linedefs 13337
Sidedefs 22309
Sectors 3741
* The vertex count without the effect of node building is 9634.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]