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.


The characters are fugitives looking for somewhere to hide for the night. A character is or is undead.
It is at a grove of trees sacred to a local religion which has many strange lights.
There are demon cultists enjoying intoxicating mushrooms. And a bone naga is trying to gain entry to a sacred place guarded by wards.
At some point someone is poisoned.
As the adventure progresses people start to gather for a funeral

The characters are a group of ghost investigators with a covered wagon, investigating a mystery. One or more characters are dressed in costumes.
It is at a derelict ship which has eyes that follow visitors everywhere.
There are local nobles and merchants gathered for a masquerade ball. And a scout seeks to stop a portal opening at midnight.
At some point it starts or stops raining.
As the adventure progresses people start to gather for a wedding

The characters are scholars researching a local mystery. One or more characters are dressed in costumes.
It is at a traveling circus which has a garden of huge pumpkins.
There are a group of smugglers sheltering for the night. And a shadow dragon wants help entering from the Shadowfell.
At some point someone discovers a secret door.
As the adventure progresses people start to gather for a wedding

The characters are the crew of a ship who have heard of a party happening here. One or more characters has an inquisitive pet.
It is at a hilltop mansion which gives nightmares to any who try to sleep there.
There are bullywugs worshipping many-eyed creatures. And a hag is looking for a soul to complete a ritual.
At some point there is roll of thunder and flash of lightning.
As the adventure progresses there are signs of a great evil approaching

The characters are members of the local law hunting a criminal. Two of the characters have fallen in love.
It is at a walled graveyard which is used to hold a herd of donkeys.
There are bullywugs worshipping many-eyed creatures. And a scout seeks to stop a portal opening at midnight.
At some point there are wolf howls.
As the adventure progresses more and more things light on fire