5e D&D Combat Encounters - Underdark

Combat Encounters include creature groups, hazards and lone npcs. Maybe a lost lizardfolk, a forest fire or a talkative druid
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:

combatfungi

5 Violet Fungi
1 Gas Spore (Monster Manual p.138)
1 Scorpion

At a simple covered pit by a quiet mysterious portal (close by is a vertical shaft)
They are marked by a deity of darkness
In a fight they attack whoever looks most dangerous
Possibly... they have a Scroll of Protection - Aberrations
Difficulty... 720 Deadly

combat

1 Piercer (Monster Manual p.252)

At a forest of insect-covered tongue-like fungi (it is associated with a dangerous umbral drake)
They are trapped in a rockfall
In a fight they attack whoever looks most dangerous
Difficulty... 100 Easy

combatillithid

1 Intellect Devourer (Monster Manual p.191)

At a sparkling ivory statue of a goose (nearby is a muddy spring)
They are trapped in a hole
In a fight they prefer to capture their foes
Difficulty... 450 Deadly

combat

2 Troglodytes (Monster Manual p.290)

At an area of lichen (nearby is a deep hole)
They are studying inscriptions
In a fight they avoid the foe that stands out most
Possibly... during the fight all magic items start glowing with a red light
Difficulty... 150.0 Easy

At a high cave with large stalagmites and stalactites (there is a shifting air current flowing through the area)
They are searching for secret doors
In a fight they attempt to use the terrain to attack with stealth
Possibly... they have a suit of Mithril Armor - chain shirt
Difficulty... 600.0 Deadly

combatduergar

A group of duergar

1 Duergar
1 Giant Lizard

At a cave with large stalagmites and stalactites (nearby is a pile of rocks)
They are are making a new home or lair
In a fight they focus all their attention on the foe that stands out most
Possibly... they have a Potion of Mind Reading
Difficulty... 375.0 Hard

At a stalactite ready to fall surrounded by bare rock (there are several stringy pale fungi)
They are searching for traps
In a fight they attempt to use the terrain to attack with stealth
Possibly... they have an Immovable Rod
Difficulty... 100 Easy

combatfungi

3 Swarms of Wasps (Monster Manual p.338)

At a strange tomb near a patch of phosphorescent edible mushrooms (there is the body of an aberration)
They are cursed
In a fight they attack whoever is nearest
Possibly... during the fight a cloud of dust or fog forms
Difficulty... 600 Deadly

combatvermin

1 Swarm of Wasps (Monster Manual p.338)

At a sparkling burial chamber (the area is touched by death magic)
They are exploring a secret entrance
In a fight they attack at random
Possibly... they have 1d4 Potions of Climbing
Difficulty... 100 Easy

At a strange shrine to a power of greed by a pool (nearby is the fresh corpse of a grimlock)
They are trapped in a rockfall
In a fight they run away as fast as they can if things go badly
Possibly... during the fight a very loud noise occurs nearby
Difficulty... 700 Deadly