D&D Random Encounters for 5E - Underdark

Encounters might be a meeting with a patrol of guards at an old shrine or a familiar looking for aid. It might be an ambush in the wilderness, a stand-off in the city or a monster in the Underdark.
The Underdark is a place of twisting tunnels, constant darkness and strange magic. Encounters might occur in a forest of fungi, amid giant stalactites or by the side of a gaping chasm. It is a place of elemental earth and gates to far realms. Home to fungi creatures, the dark elves and aberrations from the Far Realms.

tools for - dnd5e encounters underdark

level: party size: terrain: sources: type:

5 Goblins

At a muddy pool and a patch of phosphorescent edible moss (there is an air current flowing through the area)
They are are ending a journey or migration
In a fight they quickly retreat and try attacking again from ambush
Difficulty... 500 Deadly

1 Deep Gnome (Monster Manual p.164)

At a fence at the top of an overhanging cliff and a fresh spring (nearby is the fresh corpse of a fish)
They are digging a tunnel
In a fight they attempt hit and run tactics
Possibly... during the fight enemy reinforcements arrive
Difficulty... 100 Easy

2 Myconid Sprouts (Monster Manual p.230)
1 Myconid Adult (Monster Manual p.232)

At a pile of rocks (there are a few large mushrooms)
They are curious about a nearby light source
In a fight they avoid foes with ranged weapons
Possibly... they have
Difficulty... 120 Easy

A group of duergar

1 Duergar
1 Giant Lizard

At a craggy cliff. There is an enchanted rope bridge with a patch of phosphorescent edible moss (nearby is a stone mosaic)
They are foraging for fungi
In a fight they single out foes attempting to hide
Difficulty... 375.0 Hard

1 Intellect Devourer (Monster Manual p.191)

At a cave with large stalagmites (fireflies cover the area, glowing green)
They are curious about a nearby light source
In a fight they surrender if things go badly
Possibly... they have mason's tools
Difficulty... 450 Deadly

Underdark Noncombat Encs