Well, there could be a fanfiction storyline where the time - traveling DeLorean gets stuck in a time loop. Marty has to figure out how to break the loop while also dealing with the changes in the timelines that are occurring because of it. It could involve him meeting different versions of his friends and family at different points in the loop, and trying to piece together what's going on.
In some Back to the Future The Game fanfiction, there might be a storyline where an enemy from the future tries to steal the secrets of time travel from Doc Brown. This enemy could be a rogue scientist who wants to use time travel for his own evil purposes. Marty and Doc then have to team up to stop this person, traveling to different eras to outwit the enemy and protect the integrity of the time - space continuum.
One interesting storyline could be a character from a lower class rising to great power through unexpected means. For example, a peasant who discovers a long - lost magic that changes the balance of power in the fictional world.
One interesting storyline could be a character from a lower - ranked team rising to become a champion through sheer determination and hard work. They might face numerous challenges and rivalries along the way.
Another storyline could focus on the relationships between the different factions within the tyranny game world. For example, how two opposing factions might be forced to cooperate against an even greater threat that the tyrant has unleashed. This could involve a lot of political intrigue and character development as they learn to trust each other.
One interesting storyline could be about the main character from 'Overlord' facing unexpected challenges in the game world that are not part of the original game mechanics. For example, they might have to deal with a glitch that creates new and dangerous enemies.
Some fanfictions focus on the backstories of minor characters. For example, a story about the life of a Night's Watch member before he joined. It could explore his reasons for joining, his family, and how he coped with the harsh life at the Wall. There are also fanfictions that rewrite the end of the series in a more satisfactory way for fans, like Jon Snow actually ruling the Seven Kingdoms in a more just and prosperous manner.
One idea could be a crossover with 'Doctor Who'. The TARDIS could land in Hill Valley, and the Doctor could team up with Marty McFly. They could use the time - traveling capabilities of both the DeLorean and the TARDIS to fix some major time - related disasters across different universes.
One main storyline often involves Marty and Doc Brown's continued time - traveling escapades. They might go to different eras in the past or future, facing various challenges and meeting new characters along the way. Another could be about protecting the integrity of the space - time continuum from threats that could change history in unwanted ways.
One interesting storyline could be a character from a minor house rising to power through the alliances formed in the harem. For example, a character might use the relationships with different powerful figures' concubines or wives to gain inside information and manipulate political situations.
One interesting storyline could be about an alternative Hogwarts where the houses are not sorted by the traditional Sorting Hat method. Another might be a fanfiction game story where a new, powerful magic is discovered within the Forbidden Forest. And then there's the idea of a story where Muggle - born students form a secret society to protect themselves from pure - blood bullies.
One interesting storyline could be about two contestants who were initially rivals in the game but gradually fall in love outside of the competitive aspects. They might secretly support each other during challenges and face the wrath of other islanders when discovered.