Determining the Dungeon Type

As always, the principle here is to start with something you already know about the Dungeon.

If you already know the Dungeon Theme, use the first table below.

If you already know a Monster Type, use the second table.

If you know Multiple Monster Types, or the Theme and a Monster Type, you have your choice of tables.

If you really don’t know anything at all about the Dungeon, then use the completely Completely Random Dungeon Type Table.

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

Dungeon Theme Dungeon Type
Ancient 1-2 Ruin
3-4 Tomb
5 Temple
6 Random!
Base 1-2 Castle
3-4 Cavern
5 Ruin
6 Random!
Bewildering   1-2 Labyrinth
3-4 Sewer
5 Warren
6 Random!
Haunted   1-2 Tomb
3-4 Castle
5 Temple
6 Random!
Infested 1-2 Mine
3-4 Warren
5 Cavern
6 Random!
Testing Ground 1-2 Labyrinth
3-4 Castle
5 Ruin
6 Random!
Mad Menagerie
1-2 Prison
3-4 Castle
5 Cavern
6 Random!
Place of Power 1-2 Ruin
3-4 Temple
5 Tomb
6 Random!
Planar Intrusion 1-2 Rift
3-4 Mine
5 Sewer
6 Random!
Possessed   1-2 Prison
3-4 Warren
5 Castle
6 Random!
Unsealed   1-2 Mine
3-4 Tomb
5 Warren
6 Random!
If you already know one of the Monster Types, roll here to determine  the Dungeon Type

Roll 1d and refer to the appropriate Dungeon Theme  (Need a die roller?)

Monster Type Dungeon Type
Aberrations 1-2 Prison
3-4 Sewer
5-6 Random!
Beast-Folk 1-2 Cavern
3-4 Warren
5-6 Random!
Demon-Kin 1-2 Temple
3-4 Rift
5-6 Random!
Dragon-Kin 1-2 Castle
3-4 Ruin
5-6 Random!
Dwarf-Kin 1-2 Mine
3-4 Castle
5-6 Random!
Elementals (Any) 1-2 Rift
3-4 Labyrinth
5-6 Random!
Elf-Kin 1-2 Ruin
3-4 Castle
5-6 Random!
Extra-Planars 1-2 Rift
3-4 Temple
5-6 Random!
Faerie-Kin 1-2 Ruin
3-4 Cavern
5-6 Random!
Goblin-Kin 1-2 Cavern
3-4 Castle
5-6 Random!
Goo 1-2 Sewer
3-4 Cavern
5-6 Random!
Insect-Kin 1-2 Warren
3-4 Cavern
5-6 Random!
Rat-Kin 1-2 Sewer
3-4 Warren
5-6 Random!
Serpent-Kin 1-2 Temple
3-4 Ruin
5-6 Random!
Spider-Kin 1-2 Cavern
3-4 Ruin
5-6 Random!
Troll-Kin 1-2 Cavern
3-4 Ruin
5-6 Random!
Undead 1-2 Tomb
3-4 Temple
5-6 Random!
Wolf-Kin 1-2 Cavern
3-4 Warren
5-6 Random!