Labyrinth, Dimension, Air:
1-D4 checks / 24 hours of hallway or tunnel: Roll 1-D20 -- Roll needed for encounter: 16+
1 check / chamber or room: Roll 1-D20 -- Roll needed for encounter: 4+
%Roll: Encounter types:
01-10: Cat, Spell
11-12: Character G.M.: Pre-make all NPC character encounters.
13-25: Dragon, Air
26-45: Dragonman, Air
46-55: Elemental, Air
56-79: Gargoyle, Air
80-81: Race
82-00: Xenon