One idea could be a character escaping from a modern-day, over - technological world to Gravity Falls to find simplicity. They could discover a long - lost relative in the town who is involved in some of the mysteries. Another could be escaping from a difficult family situation and finding a surrogate family among the Gravity Falls residents.
Perhaps a character escapes from a world that is slowly losing its magic. Gravity Falls, with all its supernatural elements, becomes their refuge. They could start off lost and confused in the town, but gradually learn to navigate it with the help of the locals. They might get involved in a mystery that involves the balance of magic in Gravity Falls, and their actions could either save or disrupt the town.
Some Gravity Falls fan fictions focus on the relationships between the characters. There are ones that develop a romantic relationship between Dipper and Wendy in a more detailed way. Also, fan fictions that explore the friendship between Mabel and Pacifica can be really interesting. They might show how their friendship grows and the adventures they have together outside of the main plot of the show.
To start an 'escape to Gravity Falls' fan fiction, you need to have a clear concept of what your character is escaping from. Are they escaping a war - torn land, a world of social isolation, or something else? After that, consider how their journey to Gravity Falls begins. Will it be a planned trip or an accidental one? You can also draw inspiration from the show's existing characters and plotlines. For instance, you could have your character meet the Pines family early on and form a bond with them. This can be a great way to drive the story forward as your character embarks on their new life in Gravity Falls, filled with mystery and discovery.
One idea could be a Gravity Falls and Steven Universe crossover. Dipper and Mabel could meet Steven and the Gems. Maybe they'd team up to solve a mystery that involves both Gravity Falls' strange phenomena and the Gem-related threats. It would be cool to see how the different magical elements interact.
One interesting aspect is the exploration of different character relationships in a non - romantic or sexual way. For example, Dipper and Mabel's sibling bond can be further developed, showing their adventures and how they support each other through various challenges. Another aspect is the expansion of the Gravity Falls universe. Fan fiction can introduce new creatures or mysteries that are in line with the show's spooky and mysterious theme. It can also delve into the backstories of the existing characters, like Stan's past and how it shaped him into the person he is in the show.
One idea could be that the characters from Reverse Falls accidentally cross over into the Gravity Falls universe. They might initially be seen as threats by the Gravity Falls gang, but then they realize they have to work together to solve a mystery that threatens both universes. For example, a powerful and ancient evil that can only be defeated if they combine their unique skills and knowledge.
One idea could be a demon OC who was once a human but was cursed into becoming a demon. This demon could be trying to find a way to break the curse while interacting with the main Gravity Falls characters. For example, they might befriend Dipper and Mabel and the trio could go on adventures together to find a magical artifact that could reverse the curse.
Another fanfiction idea is that the demons in Black Butler are somehow related to the strange creatures in Gravity Falls. A fanfic could explore how the Phantomhive family's butler, Sebastian, would handle the mysteries and anomalies of Gravity Falls. He might be intrigued by the Journal and try to use it for his own purposes or to protect Ciel in this new and strange environment.
One idea could be that the characters from Rugrats somehow end up in Gravity Falls. Maybe the babies follow a strange glowing bug that turns out to be a magical creature from Gravity Falls. And Tommy could befriend Dipper, and they start exploring the mysteries of Gravity Falls together. The Rugrats' naivete could add a new comical element to the Gravity Falls mysteries.
One plot idea could be that the characters from Gravity Falls enter the Pokemon world. They could go on a journey to become Pokemon trainers, facing challenges like gym battles and Team Rocket - like villains. For example, Dipper and Mabel could each catch their favorite Pokemon and compete in Pokemon contests.
One idea could be that Dipper and Mabel from Gravity Falls end up in the SVTFOE universe. They could team up with Star to battle some sort of interdimensional evil that threatens both their worlds. Maybe they discover a connection between the strange creatures in Gravity Falls and the magic in SVTFOE.