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:

combat

1 Quaggoth (Monster Manual p.256)

At a forest of phosphorescent edible fungi (there is a strong smell of sulphur in the air)
They are foraging for fungi
In a fight they surrender if things go badly
Possibly... they have a Spell Scroll of meld into stone
Difficulty... 450 Deadly

combatgoblinoid

4 Goblins

At a wide set of spiral stone steps (the area is associated with a powerful plant-monster)
They are building something
In a fight they run and hide if things go badly
Possibly... they have Dust of Sneezing and Choking
Difficulty... 400 Deadly

combat

2 Grimlocks

At a vertical shaft surrounded by mushrooms (there is a bone shrine to deity of darkness)
They are intoxicated on a mushroom brew
In a fight they focus on the most heavily armored foes
Possibly... during the fight someone's weapon starts to glow with a magic effect
Difficulty... 150.0 Easy

combat

3 Piercers (Monster Manual p.252)

At a luminous cliff (there are stalactites carved with faces)
They are are near their home
In a fight they attack whoever is largest
Possibly... they have a Ring of X-Ray Vision
Difficulty... 600 Deadly

combat

1 Intellect Devourer (Monster Manual p.191)

At a large murky pool fed by a spring (there is a pile of colored stones)
They are trapped in a rockfall
In a fight they try to capture any obvious spellcaster
Possibly... they have a Potion of Gaseous Form
Difficulty... 450 Deadly