One common trope is the 'outsider' trope. The male OC is often an outsider to the main group in Until Dawn. He might be a new arrival in the area or have a different background that sets him apart. Another is the 'protector' trope. He feels a strong need to protect the other characters, especially the female ones. For example, he could be a martial arts expert who uses his skills to fend off threats. And then there's the 'mysterious past' trope. His past is only gradually revealed throughout the fanfiction, keeping the readers guessing.
Love and trust are also prevalent themes. The OC and Josh have to build trust in each other in a very dangerous and unpredictable situation. Their love story is often at the center, whether it's a slow - burn romance or a more immediate connection. Also, the theme of mystery is there as the world of 'until dawn' is full of secrets and the OC might be involved in uncovering some of them.
One common theme is adventure. Since 'Until Dawn' has an adventurous setting, many fanfictions with Sam and an OC involve them going on some sort of adventure together, facing challenges and growing closer through it.
One common theme is the discovery of new powers. Since it's supernatural, the OC often realizes they have some unique ability that helps them in the Until Dawn situation, like seeing the future or controlling the elements.
One popular trope is the 'hurt/comfort' trope. Since Josh has a lot of emotional pain due to his sisters' situation, Mike is often shown as the one to comfort him. Another is the 'forced proximity' trope. Maybe they get stuck in a small space together during their ordeal on the mountain, which forces them to interact more closely and understand each other better. There's also the 'slow - burn' romance trope where their relationship gradually develops from just being friends or acquaintances to something more romantic over the course of the fanfiction.
First, develop a unique personality for your male OC. Consider his backstory, like if he has a troubled past or a special family. For example, he could be a survivor of a previous horror incident that makes him more cautious in the Until Dawn scenario. Then, think about his relationships with the existing characters. Will he be a love interest for one of the girls? Or a rival to the male characters? Also, build up the tension in the story. Use the spooky setting of Until Dawn to your advantage, like having him explore a creepy part of the lodge alone. This can create suspense and keep the readers hooked.
Some tropes in this type of fanfiction include the 'damsel in distress' but with a twist. Maybe a Until Dawn character is in trouble and the Naruto character uses their unique skills to save them. There's also the 'rival turned lover' trope. Two characters who were initially competing for the main character's attention end up falling for each other instead. And the 'training montage' trope can be adapted. Instead of just Naruto - style training, it could be training to survive in the Until Dawn horror - filled environment.
One idea could be creating an OC who is a long - lost relative of one of the main characters. For example, a cousin of Sam who shows up at the lodge with a mysterious past. Maybe they have some hidden knowledge about the events that are about to unfold at the mountain. Another idea is an OC who is a survival expert hired by the parents of the group to secretly keep an eye on them during their stay. This OC could have unique skills and equipment that add an interesting dynamic to the story. Also, an OC who is a spirit medium could be cool. They start sensing the dark presence in the mountains before anyone else and try to warn the others, but no one believes them at first.
A frequently seen trope is the 'system upgrade'. As the male oc progresses in the story, his system will also upgrade. This could mean new functions, more powerful abilities, or access to different areas. It gives the character a sense of growth and development. And then there's the 'rival with a system' trope. Sometimes, there will be other characters who also have systems, and the male oc has to compete or cooperate with them. This creates tension and interesting story dynamics.
Well, in Gundam male OC fanfiction, you often see the 'Lost Legacy' trope. The male OC discovers that he has a connection to an ancient or forgotten part of Gundam history, like a lost Gundam technology or a long - dead hero. Another common one is the 'Redemption Arc' for a character who has made mistakes in the past. The male OC might have been on the wrong side of a conflict initially but then sees the error of his ways and tries to make amends. And there's the 'Outsider Who Becomes a Hero' trope, where the OC is not from the main group but ends up being crucial to their success.
It allows for a different perspective on the events of the game. The OC can bring in fresh ideas and emotions. For example, an OC might see Josh in a way the other characters don't, which can lead to some really interesting interactions and plot developments. Also, fans get to be creative and put their own spin on the Until Dawn universe with these fanfictions.