The Labyrinthine Worlds are nine planets known to the Hegemony to contain a mysterious complex of underground tunnels. Five of these worlds are within the Web, the rest are in the Outback [1]. Not created by any natural means, the tunnels are hypothesized to have been carved by an ancient race named the Builders by the Hegemony.


All nine labyrinthine worlds share a set of common characteristics[2]:

  • Earthlike - at least 7.9 on the Solmev Scale
  • In orbit of a G-type star
  • Tectonically dead
  • Labyrinths typically 10-30 kilometers deep
  • Cross-sectional measurements of 30 meters square

Named Labyrinthine Worlds


  1. The Fall of Hyperion, 1990. Chapter 34.
  2. Hyperion, 1995. Chapter 1, p.77.

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