Cave (Acid Dimension):

1 check / 200' of hallway or tunnel: Roll 1-D20 -- Roll needed for encounter: 17+
1 check / chamber or room: Roll 1-D20 -- Roll needed for encounter: 9+

 

%Roll: Encounter types:
01-20:   Bat
21-40:   Cat, Spell
41-45:   Character G.M.: Pre-make all NPC character encounters.
46-55:   Dragon, Acid
56-70:   Dragonman, Acid
71-72:   Jahtha
73-74:   Jahthein
75-76:   Race
77-83:   Serpentine, Acid
84-00:   Wolf, Acid