Dungeons
Desolate crypts, ancient temples, horrifying tombs, and cursed pyramids are often filled with traps and monsters. Unlike the natural caverns of most of the underland realm, a dungeon is usually constructed and can be above or below ground. Although dungeons aren’t regions (so there is no weather or travel scenery, and adventurers don’t undertake journey activities in a dungeon) they are filled with random encounters against both traps and monsters, and these areas are ripe with opportunities for exploration!
Terrains. Dungeons can be found everywhere, and depending on their size and location they may have a wide variety of terrains within (though laboratory, ruins, sewer, temple, and tomb are the most common).
Tier. Dungeons range from tier 0 crypts in small villages all the way up to the deadliest tier 4 labyrinths of terror constructed by ancient evils.
Dungeon Exploring Tier 0
1–2 Aboleth thrall (monster)
3–4 Animated armor (monster)
5–6 Apprentice mage (monster)
7–8 Bandit (monster)
9–10 Bolt-thrower (monster)
11–12 Cultist (monster)
13–14 Cutthroat (monster)
15–16 Ettercap (monster)
17–18 Flumph (monster)
19–20 Flying sword (monster)
21–26 Falling net (exploration)
27–28 Gargoyle (monster)
29–30 Gear spider (monster)
31–32 Gelatinous cube (monster)
33–34 Gibbering mouther (monster)
35–36 Ghoul (monster)
37–38 Goblin (monster)
39–40 Gray ooze (monster)
41–42 Homunculus (monster)
43–44 Kobold (monster)
45–46 Mimic (monster)
46–47 Ochre jelly (monster)
48–49 Ogrekin (monster)
50–52 Poisonous snake G Monster
53–59 Haze (exploration)
60–62 Rat G Monster
63–64 Rug of smothering (monster)
65–66 Shadow (monster)
67–68 Shrieker (monster)
69–70 Skeleton (monster)
71–72 Specter (monster)
73–79 Lost item (exploration)
80–82 Spider G Monster
83–84 Swarm of poisonous snakes (monster)
85–86 Swarm of rats (monster)
87–88 Violet fungus (monster)
89–90 Wererat (monster)
91–92 Zombie (monster)
93–100 Poorly-repaired tunnel (exploration)
G On an odd result, use the giant version of this creature instead.
Dungeon Exploring Tier 1
1–6 Collapsing roof (exploration)
7–8 Aboleth thrall (monster)
9–10 Animated armor (monster)
11–12 Bandit captain (monster)
13–14 Banshee (monster)
15–16 Black pudding (monster)
17–18 Bolt-thrower (monster)
19–20 Clockwork sentinel (monster)
21–22 Cult fanatic (monster)
23–24 Doppelganger (monster)
25–30 Labyrinthine ravines (exploration)
31–32 Ettercap (monster)
33–34 Ettin (monster)
35–36 Flying sword (monster)
37–38 Gargoyle (monster)
39–40 Ghast (monster)
41–42 Ghost (monster)
43–44 Ghoul (monster)
45–46 Gibbering mouther (monster)
47–48 Goblin boss or goblin warlock (monster)
49–55 Pests (exploration)
56–57 Intellect devourer (monster)
58–59 Kobold broodguard or kobold sorcerer (monster)
60–61 Mimic (monster)
62–63 Ochre jelly (monster)
64–65 Ogre (monster)
66–67 Ogre zombie (monster)
68–69 Phase spider (monster)
70–71 Quasit (monster)
72–73 Rug of smothering (monster)
74–79 Pit trap (exploration)
80–81 Shadow (monster)
82–83 Skeletal champion (monster)
84–85 Skeleton horde (monster)
86–87 Specter (monster)
88–89 Walking statue (monster)
90–91 Werewolf (monster)
92–93 Zombie horde (monster)
94–95 Zombie knight (monster)
96–99 Quicksand (exploration)
100 Rot grubs (exploration)
Dungeon Exploring Tier 2
1–5 Cursed temple (exploration)
6–8 Air elemental G (monster)
9–10 Alchemist (monster)
11–12 Blackguard (monster)
13–16 Dense fog (exploration)
17–18 Black pudding (monster)
19–20 Bolt-thrower (monster)
21–22 Bulette (monster)
23–26 Enchanted statue (exploration)
27–28 Cambion (monster)
29–30 Clay guardian (monster)
31–32 Cloaker (monster)
33–36 Flimsy rope bridge (exploration)
37–38 Crusher (monster)
39–40 Dead man’s fingers (monster)
41–42 Drider (monster)
43–45 Lethal outgassing (exploration)
46–48 Earth elemental G (monster)
49 Elder black pudding (monster)
50–52 Fire elemental G (monster)
53–54 Flesh guardian (monster)
55–56 Poison darts (exploration)
57–58 Hell hound (monster)
59–60 Intellect devourer (monster)
61–66 Invisible stalker (monster)
63–65 Rolling sphere (exploration)
66–67 Mage (monster)
68–69 Ogre mage (monster)
70–71 Otyugh (monster)
72–75 Rot grubs (exploration)
76–79 Revenant (monster)
80–81 Shield guardian (monster)
82–83 Stone guardian (monster)
84–87 Swinging blades (exploration)
88–90 Water elemental G (monster)
91–92 Wererat (monster)
93–94 Werewolf (monster)
95–97 Voracious pests (exploration)
98–99 Wraith (monster)
100 Spinning walls (exploration)
G On an odd result, use the giant version of this creature instead.
Dungeon Exploring Tier 3
1–7 Choking smoke (exploration)
8–10 Aboleth (monster)
11–13 Archmage (monster)
14–16 Assassin (monster)
17–19 Behir (monster)
20–22 Clay guardian (monster)
23–28 Endless plummet (exploration)
29–31 Cloaker (monster)
32–34 Cyclops (monster)
35–37 Drider (monster)
38–39 Forgotten god (monster)
40–42 Guardian naga (monster)
43–48 Poison needle (exploration)
49–51 Iron guardian (monster)
52–54 Mummy lord (monster)
55–57 Night hag (monster)
58–61 Ogre mage (monster)
62–64 Otyugh (monster)
65–73 Sphere of annihilation (exploration)
74–76 Sphinx (monster)
77–79 Spirit naga (monster)
80–82 Stone guardian (monster)
83–85 Troll or dread troll (monster)
86–88 Vampire (monster)
89–93 Spinning walls (exploration)
94–96 Wraith lord (monster)
97–99 Young red dragon zombie (monster)
100 Malfunctioning planar portal (exploration)
Dungeon Exploring Tier 4
1–7 God corpse (exploration)
8–12 Aboleth (monster)
13–16 Arcane blademaster (monster)
17–22 Archmage (monster)
23–28 Hallowed ground (exploration)
29–32 Clay guardian (monster)
33–37 Demilich (monster)
38–41 Dread knight (monster)
42–48 Hellscape (exploration)
49–52 Empyrean (monster)
53–57 Lich (monster)
58–61 Master assassin (monster)
62–68 Killing cloud (exploration)
69–72 Mummy lord (monster)
73–77 Greater sphinx (monster)
78–81 Stone guardian (monster)
82–88 Malfunctioning planar portal (exploration)
89–92 Troll or dread troll (monster)
93–97 Vampire (monster)
98–100 Wraith lord (monster)