For the camping trip story, the friends could all be killed one by one, and the last survivor wakes up to find that it was all a dream - but then realizes that there are real scratches on his body from the 'dream' events. This leaves the reader with a sense of unease, not knowing if it was truly just a dream or something more sinister.
One ending could be that the main character realizes they are actually dead and have been in a purgatory - like state all along. For instance, in the asylum story, the girl finds out that she died in a car accident near the asylum years ago and has been trapped there ever since.
One possible ending is just cutting off all contact and blocking the person. That's what I did when I had a bad encounter. I didn't want to deal with the drama anymore.
You could end it with a cliffhanger. For example, the main character is about to open a mysterious door, and then the story just stops. This leaves the readers wondering what's behind the door and they can come up with their own ideas.
A reconciliation can also make a great short story ending. Let's say two friends had a huge fight and the story was about their estrangement. In the end, they meet, have an honest conversation, and forgive each other. This type of ending leaves the reader with a warm, fuzzy feeling of restored relationships.
A happy reunion can also make a great short - story ending. Say two friends had a big fight and parted ways. Throughout the story, they both realize how much they miss each other. In the end, they accidentally meet in a place that has special meaning to them and they hug, forgive each other, and their friendship is restored. This type of ending tugs at the heartstrings and leaves the reader with a warm feeling.
One common ending is that the protagonist finally defeats the evil force but at a great cost, like losing a loved one. For example, in 'The Exorcist', the priest manages to expel the demon from the girl, but he dies in the process.
The ending could also be tragic. Perhaps one of the lovers passes away, leaving the other in deep sorrow. Or they could have a falling - out that destroys their relationship completely, and the protagonist is left with only memories of what could have been the love of their life.
A cliffhanger ending can also work well for a short story. Leave the reader with a big question. For example, the main character is about to open a door that could lead to a new world or great danger. The reader will be left wondering what happens next, and it might even make them come up with their own endings in their minds.
One good twist ending could be that the person the protagonist has been helping throughout the story is actually the villain who has been manipulating events all along. For example, in a story where a detective is helping a seemingly innocent witness, at the end it's revealed that the witness set up the whole crime just to get revenge on someone and used the detective to cover their tracks.
A bittersweet ending can also work well. Maybe the protagonist sacrifices themselves to save the fantasy world but in doing so, they leave behind a legacy. The world is saved, but their friends and family must now live without them. Like a knight who gives his life to seal a rift to the underworld, and his name becomes a legend that lives on, inspiring future generations.
A bittersweet ending can also be great. Like in a love story where the two lovers part ways because of different life goals, but they still cherish the memories they had together. It gives a feeling of realism and makes the reader think about the choices in life.