One idea could be exploring the backstories of the characters in more depth. For example, delving into what led them to the alley in the first place.
Begin by creating a character of your own if you want to add something new. Describe their appearance, personality, and goals. Then think about how they would fit into the world of Satan's Alley. You could start writing with a scene that introduces this new character and their first encounter in the alley.
One idea could be a story where 2B and 9S have to survive in a post - apocalyptic world without their usual support systems. They rely on each other more than ever, facing new and unknown threats.
One idea could be to explore the backstory of an unnamed assassin in the game. Maybe they have a personal vendetta against a particular Templar that goes beyond the main plot. Another idea is to create a fan fiction where the Assassins and Templars have to team up temporarily to face a greater threat, like an ancient evil that's been awakened.
One idea could be exploring the backstories of each member of Haven's Nine in more detail. Maybe one of them has a secret past as a lost heir to a powerful family. Another idea is to create a story where they face a new and extremely powerful enemy that forces them to develop new skills and strategies.
One interesting idea could be exploring the backstories of the alien races in the game. For example, you could write about how the Gek evolved and what their society was like before the events of the game. Another idea is to create a story about a lost traveler who discovers a hidden part of the universe that has unique planets and creatures not yet known in the main game. Maybe a story where a character tries to build a utopia on a desolate planet by using the in - game mechanics in creative ways.
In 'the sorcerer's apprentice fan fiction', you could also introduce new magical creatures. The apprentice could befriend a magical creature that helps him in his studies or in times of trouble. Additionally, you could explore what would happen if the apprentice accidentally cast a spell that sent him back in time. He would have to use his limited knowledge of magic to get back to his own time while also not changing the course of history too much.
One idea could be to explore the daily adventures of the characters in a new city. Maybe they go on a wild scavenger hunt across town. Another idea is to have a character from the Sarah's Scribbles world start a new hobby like painting and see how it changes their relationships. You could also write a fan fiction where they all go on a camping trip and face various challenges in the wilderness.
One idea could be to explore the Belcher family's vacation. Maybe they go on a road trip and encounter all sorts of wacky characters along the way. Another idea is to have a story where Tina writes a really successful play that gets the whole town talking. And also, a fan fiction could be about Bob trying out a new and very strange burger recipe that has a magical effect on the customers.
Well, you could write a fan fic where the relationships between the characters are reversed. So if in the original there are certain rivalries, in the fan fic they become allies and vice versa. Also, a story about a character who loses their power but discovers a new way to be strong within the 'unordinary' world would be interesting. Or how about a fan fic that takes place in a parallel dimension within the 'unordinary' universe where the rules of powers are slightly different?
Some interesting ideas for Riverdale fan fiction could be a crossover with another popular teen drama. Imagine the characters of Riverdale meeting the characters from 'Stranger Things'. It would be really cool to see how they interact. You could also write a fan fiction that focuses on the future of Riverdale. What will happen to the town and its residents ten years from now? Will Archie still be in town? How will Veronica's business empire develop?