Determining the Dungeon’s Monster Ecology

If you’re tying to determine what kind of monster inhabits one of the Dungeon’s three Monster Ecology slots, then roll on the table below.

What Type of Monster Lives Here?

Roll 3d6.  (Need a die roller?)

3-6 Use the Region’s Population Type (If you don’t know that, see World Creation, Step 5)
7-11 Roll as per the Dungeon Type, below.
11-14 Roll as per the Dungeon Theme, below.
15-18 Use the Region’s Population Type (If you don’t know that, see World Creation, Step 5)

 

If you already know the Dungeon Type, roll here to determine a Monster Type
Roll 1d and refer to the appropriate Dungeon Type.  (Need a die roller?)

Dungeon Type Monster Type
Cavern 1-2 Goblin-Kin
3-4 Goo
5 Troll-Kin
6 Random!
Castle 1-2 Dwarf-Kin
3-4 Goblin-Kin
5 Dragon-Kin
6 Random!
Labyrinth 1-2 Aberrations
3-4 Elementals
5 Rat-Kin
6 Random!
Mine 1-2 Dwarf-Kin
3-4 Goblin-Kin
5 Spider-Kin
6 Random!
Prison 1-2 Aberrations
3-4 Undead
5 Beast-Kin
6 Random!
Ruin 1-2 Undead
3-4 Elf-Kin
5 Serpent-Kin
6 Random!
Rift 1-2 Extra-Planars
3-4 Elementals
5 Aberrations
6 Random!
Sewer 1-2 Goo
3-4 Aberrations
5 Rat-Kin
6 Random!
Tomb 1-2 Undead
3-4 Spider-Kin
5 Undead
6 Random!
Temple 1-2 Demon-Kin
3-4 Undead
5 Extra-Planars
6 Random!
Warren 1-2 Spider-Kin
3-4 Rat-Kin
5 Beast-Kin
6 Random!
If you already know the Dungeon Theme, roll here to determine a Monster Type
Roll 1d and refer to the appropriate Dungeon Theme  (Need a die roller?)

Dungeon Themes Monster Type
Ancient 1-2 Undead
3-4 Demon-Kin
5 Elementals
6 Random!
Base 1-2 Goblin-Kin
3-4 Dwarf-Kin
5 Elf-Kin
6 Random!
Bewildering   1-2 Aberrations
3-4 Extra-Planars
5 Spider-Kin
6 Random!
Haunted   1-2 Undead
3-4 Spider-Kin
5 Undead
6 Random!
Infested 1-2 Goo
3-4 Beast-Kin
5 Rat-Kin
6 Random!
Testing Ground 1-2 Aberrations
3-4 Elementals
5 Undead
6 Random!
Mad Menagerie
 1-2 Aberrations
3-4 Beast-Kin
5 Elementals
6 Random!
Place of Power 1-2 Demon-Kin
3-4 Undead
5 Elementals
6 Random!
Planar Intrusion 1-2 Extra-Planars
3-4 Elementals
5 Demon-Kin
6 Random!
Possessed   1-2 Demon-Kin
3-4 Undead
5 Faerie-Kin
6 Random!
Unsealed   1-2 Demon-Kin
3-4 Extra-Planars
5 Undead
6 Random!

 

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