A full wiki page for this entity is still being generated. Until then, see the recorded facts below.
Sources — 5 recorded facts, by chapter
Chapter 1
- The World Dungeon is a subterranean 18-level dungeon built from Earth's repurposed matter, into which surviving humans may enter to reclaim their lost matter.
- Its first level opens about 18 seconds after the announcement and entrances stay open for exactly one hour; once inside, a crawler cannot leave until completing all 18 levels or meeting certain requirements.
- There are 150,000 level-one entrances, with the number of entrances to each next level halving (rounding up) down to just two entrances and one exit at level 18.
- Crawlers must descend to the next level before the level's time limit expires or remaining matter is forfeit, and additional rules begin once anyone reaches the tenth floor.
- Completing level 18 reverts regency of the planet to the successor.