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D&D Dungeon Encounters using the Monster Manual

Duncan Thomson

"A cautious young black dragon scouting out area and looking for new lair"

Dungeon random encounters using the monster manual

Monster Manual Encounters - City | Dungeon | Wilds

Dungeon Encounters using Monster Manual

Random encounters in the Dungeon with a mix of non-combat, low-level, mid level, vermin and locations. The tables have a sub-theme of a frog monsters

For Dungeons and Dragons 5th Edition using the Monster Manual.

Inspired by my D&D Encounter Generator and available on DM's Guild along with similar tables

Monster Manual Encounters - City, Dungeon and Wilderness Quick Adventure Bundle

Dungeon Encounters Low Level (1-4)

1d20Dungeon Encounters Low Level (1-4)
1 Several flumphs who have been attracted by psionic energies nearby
2 A troll who has taken a oath to only eat dead animals. It is meditating
3 A wererat scouting as a rat for another faction. Follows the characters
4 A poor guard who is happy to work as a torchbearer or other hireling
5 A patrol of 1d4+2 flying swords who take great interest in other swords
6 1d2 giant toads with pack harnesses or roll on Dungeon Vermin
7 2d4+2 kobolds who are building a half-finished elaborate trap
8 1d3 skeletons and 1d3 zombies tidying up and making repairs
9 1 ochre jelly recently released from a sealed area by another creature
10 1d4+2 goblins mounted on giant wolf spiders playing a game with sticks
11 1 intelligent mimic which is talkative or roll on Dungeon Vermin
12 1 nothic who prefers to spy on intruders and is curious about any magic
13 1d2 hungry carrion crawlers with saddles attached but no visible riders
14 1 grell who got lost and is carefully searching for secret doors
15 1 cult fantatic and 1d4+1 thugs leading giant frogs into the dungeon
16 1d3+1 duergar mercenaries recently arrived from the Underdark
17 1 ogre with a pet displacer beast carrying a sack of giant frog corpses
18 1 flameskull singing songs to itself as it tries to compose new ones
19 2d4 bullywugs with 1d6 giant frogs attracted here by dreams or magic
20 2d4 gnolls led by 1 gnoll pack leader scouting for a larger warband

Dungeon Encounters Mid Level (5-10)

1d20Dungeon Encounters Mid Level
1 A friendly galeb duhr who tries to give advice about the dungeon
2 A few doppelgangers are looking for somewhere secluded to call home
3 A cambion who surveys ruins is taking measurements for a map
4 A githzerai zerth is interested in the history of the area
5 1d4+2 kuo-toa led by 1 kuo-toa monitor all mounted on giant toads. They are looking for allies to help take over the area
6 1 mezzoloth very curious about what is beyond the area it is guarding
7 1d3+1 hell hounds led by 1 azer in a patrol of the area
8 1 night hag and a pet grick. Stays here betweem haunting nearby villages
9 1 cautious young black dragon scouting out area and looking for new lair
10 2d6+2 hobgoblins and 1 hobgoblin captain looking for paid work here
11 1 blue slaad is feeding a slaad tadpole on fresh corpses
12 2 shadow demons with 2d4 shadows serve a greater power nearby
13 1 spirit naga who is looking for new minions after losing many recently
14 1 salamander and 1 invisible stalker are reluctant guardians here
15 1 wight mounted on a beholder zombie leading 2d4 ogre zombies looking to deal with intruders
16 1 chain devil is trying to outfit a torture chamber for their summoner
17 1 drow mage and 1 mind flayer together are studying rare magic here
18 2 red slaads and 1 green slaad in kuo-toa form, seeking victims to infect
19 1 miserable gynosphinx has run out of good puzzles or riddles
20 1 beholder is looking for whoever claims area (higher level encounter)

Dungeon Vermin Encounters

1d20Dungeon Vermin Encounters
1-2 1d4+1 giant lizards which are lazy and well fed. Try to ignore others
3-4 1d2 giant toads or 1 ochre jelly
5-6 2d4 giant fire beetles which are part of a much larger colony
7-8 2d6 giant centipedes or 1d3+1 mephits of different types
9-10 1d2 rust monsters with leather collars and ropes attached
11-12 1 giant spider or 1d4 shriekers and 1d4 violet fungi
13-14 1d3 giant weasels who will try to steal anything shiny
15-16 1d3 swarms of bats or 1 mimic
17-18 2d4 giant frogs of which one is awakened but tries badly to hide it
19-20 1 swarm of snakes or 1 gelatinous cube

Dungeon Locations

1d20Dungeon Locations
1-2 Frog Statue Bones are littered around the statue of a frog. A teleportation circle is located in one corner under dirt and bones
3-4 Levers Room with a pit-trap and three levers. One lever disables the pit trap. One opens and closes it and one triggers an alarm for 1 minute
5-6 Hidden Refuge A secret door leads to a chamber with a pool of water.
7-8 Cavern has a small ecosystem of insects, bright fungi and luminous moss. A few fire beetles make use of a network of nearby smaller caves
9-10 Shrine. A bull-headed statue holds a sun in two hands. It has a hidden compartment. The area is covered in candles and one of them is lit
11-12 Forge An anvil and smithing tools are in one corner. Recent repairs have been made and there is a good supply of fuel
13-14 Underdark Entrance. An unlocked trapdoor triggers a daylight spell when opened. Beyond are carved steps leading down to the Underdark
15-16 Cairn. A pile of broken rocks and debris barely cover humanoid bones
17-18 Dining Hall with wooden chairs & tables. An unseen servant cleans up.
19-20 Freshwater Pool Fed by an underground stream that leads to a waterfall

More Encounters

These tables and more like it are available on DM's Guild in Monster Manual Encounters - City, Dungeon and Wilderness.

Monster Manual Encounters - City, Dungeon and Wilderness Quick Adventure Bundle