Spooky DnD One-Shot Adventure

Adventure one-shot ideas for horror or Halloween. Assumed to take course over the an evening or night. Probably with a full moon. [dnd5e] [dmtool] [spooky] [oneshot]


The characters are friends and family witnessing a wedding. Two of the characters are friendly rivals.
It is at sea caves which borders on the Shadowfell.
There are a pack of welcoming ghouls preparing for a feast. And a creature here is possessed by a sentient berserker axe.
At some point someone finds a clue.
As the adventure progresses people start dying in different ways

The characters are old friends meeting up for a reunion. A character thinks there is a big conspiracy.
It is at a cave complex which gives nightmares to any who try to sleep there.
There are plant creatures creating a strange garden. And a creature here is possessed by a sentient berserker axe.
At some point someone finds a mysterious note.
As the adventure progresses there is a series of murders

The characters are a group of caravan guards protecting a single merchant, stopping here for the night. One or more characters has an inquisitive pet.
It is at an asylum for the insane which has a sinister pentagram that only appears on this night each year.
There are a mismatched group of awakened animals choosing a leader. And a mind flayer is seeking help to summon creatures from the Far Realm.
At some point there are muffled screams.
As the adventure progresses a thunder storm grows in intensity

The characters are members of a secret society gathering for an initiation. A character has made an enemy of a local spellcaster.
It is at a cave complex which is the prison for a fiend.
There are a gang of pirates looking for buried treasure. And a creature here is possessed by a sentient berserker axe.
At some point A revenant arrives seeking revenge.
As the adventure progresses a series of hidden tunnels are discovered

The characters are a group of recently met adventurers sent to meet "someone". One or more characters is currently is carrying a disease.
It is at an asylum for the insane which has a large network of passages underneath.
There are kuo-toa worshipping many-eyed creatures. And a vengeful warlock seeks to burn everything to the ground.
At some point something something escapes.
As the adventure progresses the time of a bloody ritual approaches