Hallucinatory monsters do not exist in NetHack, but their names can appear when you are hallucinating and interacting with monsters. A few appear as real monsters in SLASH'EM. Many of the monster names come from other roguelikes, mythologies, fantasy worlds, and popular culture[1].

List of hallucinatory monstersEdit

Quendor (Zork, etc.)Edit


  • Ancient Multi-Hued Dragon
  • Evil Iggy


Greek legendEdit


  • tangle tree
  • nickelpede[2]
  • wiggle

Lewis CarrollEdit

Star TrekEdit

Monster moviesEdit

The Hitchhiker's Guide to the GalaxyEdit

  • microscopic space fleet
  • Ravenous Bugblatter Beast of Traal

50's rock 'n' rollEdit


Found only in the NAO versionEdit

  • bluebird of happiness
  • stuffed raccoon


  1. do_name.c, line 888
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Appears as a real monster in SLASH'EM.

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