The Chamber of Invisible Horror

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Map layout of The Chamber of Invisible Horror, as visualized in the Wolf3D Data Compiler

The Chamber of Invisible Horror is the thirteenth level (slot twelve) of Catacomb Apocalypse (1993). The name of the level refers to the cloaked enemies that populate this science fiction themed level.


"Another future themed map. We fight eye drones here and - which is the only thing interesting about this level - the Invisible Horrors. I use a red key here that I got from the Ancient Node before I get both red keys from this level. This is just to save myself from walking back and forth again and thus saving a little time and making it a little more pleasant to watch."


  • Central Chamber of the Invisible Horror
  • Hidden Subchamber
  • Hall of Hidden Terror
  • Access to Northern Subchambers
  • Halls
  • Access to Exit Lock Chamber
  • Access to Southern Subchambers
  • Access to Southwestern Subchambers
  • Access to Northwestern Subchambers
  • Damaged Walls
  • Southern Subchambers
  • Southwestern Subchambers
  • Northwestern Subchambers
  • Northern Subchambers
  • Exit Lock Chamber
  • Exit Lock Door
  • Beware that which you cannot see!
  • Watch the Crystal Sphere for dangers!

Enemies Present[edit]

Items Present[edit]

Catacomb 3D & Adventure Series - Campaigns:
Catacomb 3D (1991) Catacomb Abyss (1992) Catacomb Armageddon (1992) Catacomb Apocalypse (1993)