The stories usually play with fear of the unknown. They might introduce a mystery that the characters have to solve, like in some stories where there is an unexplained phenomenon in a small town. The animation enhances this fear as it can show things in a more vivid and sometimes distorted way. Also, they can use sound effects in the animation very effectively to create a spooky atmosphere, like creaking doors or howling winds.
One great animated horror story could be 'The Black Cauldron'. It has dark and spooky elements with its evil forces and the fight against them. The animation style adds to the eerie atmosphere.
One horror story could be about a guest finding a rat in their room. They were just settling in when they saw it scurrying across the floor. It was so disgusting and made them feel very uncomfortable. They immediately asked to change rooms.
One horror hotel story is about a hotel where guests would hear strange scratching noises at night. They thought it was just rats, but when they looked closely, there were no signs of any rodents. It turned out that a previous guest had died in the room under mysterious circumstances and was said to be 'haunting' the room.
The unknown is terrifying. In horror hotel stories, there are often things that can't be explained, like strange noises or apparitions. You don't know what's causing them, if it's a ghost or something more sinister. It keeps your mind racing and fills you with fear. Also, the history of the hotel can be a source of horror. If it has a past of murders or suicides, it adds an extra layer of spookiness.
There was a case where a solo traveler in a Vegas hotel woke up to find strange noises coming from the ventilation system. It sounded like scratching and moaning. He called the front desk but they couldn't figure out what it was. He ended up spending a sleepless night, feeling really creeped out. Vegas hotels are supposed to be fun places, but this was a nightmare for him.
Some might include 'Mononoke'. It's a Japanese anime that has a lot of horror themes such as vengeful spirits and dark secrets. Each story arc within the series is filled with suspense and horror. There's also 'Ajin: Demi - Human' which has some horror elements as it deals with immortal beings that are hunted and experimented on, creating a rather disturbing and horror - like scenario.
One characteristic is the use of unique art styles. For example, some might use dark and muted colors to create a gloomy atmosphere. This helps to set the mood right away.
First, you need a compelling story idea. Make it full of tension and mystery. Then, focus on the animation style - use dark colors and creepy effects. Good sound design is also crucial to build the atmosphere.