AU of the Gravity Falls story, focus is on OC's own story.

Missing the town of Gravity Falls following their fateful summer of adventure, Dipper and Mabel RSVP to the grand opening of the Northwest family's new ski resort. Pacifica is determined to show Dipper a great time out on the slopes, but there's something not quite right about the trees. The first entry in the Mystery Twins Hotline continuity!

Dipper decides to spend the holidays out hiking with the Corduroys. They end up trapped in the ruins of the Ancient Hakrom Empire, whatever that means, and things go downhill from there.

With no family left Mabel and Dipper are alone in the Gravity Fall orphanage. Since the "Pines" name is hated, the town is waiting to throw them to the wolves. But when an odd man adopts the twins before their birthday, life changes for them. Nothing will be the same. So many questions. Why does Dipper have memory loss? And what is the source of Mabel's terrible nightmares?

In 1982 in Gravity Falls, Oregon, there was a fight in the basement of a log cabin up in the woods, and one of the two men involved was sucked through a portal into the multiverse. In most dimensions this was Stanford Pines, PhD (x12). Here, however, it was someone else...

(High School AU.) Dipper Pines didn't care much about anything when he transferred to Gravity Falls High School. He had good grades, he had friends, and he was on the pathway to a great life. What could go wrong? Well, when you ask it that way, you make it sound like he was expecting Bill Cipher to suddenly wreck everything in his life. (CURRENTLY TAKING REQUESTS!)

Eighteen years after the tragedy of June 3rd, twin sisters Mabel and Pacifica Pines begin to uncover the well hidden and somewhat forgotten mysteries of Gravity Falls, Oregon. Along with their group of trusty friends, will they be able to uncover the truth and navigate the rough waters of adolescence? What will happen when a new set of foes rise?

Dipper looks and Mabel leaps. People say that Dipper thinks, and Mabel doesn't. But inside Mabel's mind, she dreams; inside Mabel's mind, she's a shooting star. And she burns.

It’s the summer of 2013 and the Pines twins return for the summer as a new mystery is taking place in this small town located in Oregan

Stan decides to go through with one of his phone calls... A gift for artsymeeshee.

"You'd love it. The feeling of someone's fate right at your fingertips. I could give you the feeling of real power. All the department does is give you authority. But this? This is more." (Not Billdip).

Everyone has a sinking realization that life is temporary and that we're all gonna die, and unfortunately sweet Mabel has her's. Totally NOT based off a Steven Universe episode. ;)

After everything they've been through, after all the torture they endured, after all the pain they had to suffer, was it actually worth it?

Pacifica and Wendy like to know their mothers

An Alternate Timeline/Sequel to Only Hope, exploring what would happen if Mabel and Mikey had both survived their cancer and entered into remission. The story takes place when they are seventeen years old and explores the highs and lows of their life and relationship. Part of the Adoption AU and a collaboration with DetectiveJigSaw

When T, a loser serial killer and rapist, gets bored of kidnapping and fucking children, he decides to travel to the world of Gravity Falls and fuck an underaged Wendy Corduroy. Throughout this 10 Chapter Saga, he works with, and against, countless iFunniers determined to see him through to the end, or put an end to him themselves.

After Bill Cipher was defeated, though he was barely alive, pieces of him scattered across North America, with weird stuff following. To combat this, the Pines Paranormal Protection Service is formed in 2021, protecting Piedmont and occasionally travelling elsewhere. But, when a familiar face urges them to come back to Gravity Falls, the twins return for Another Summer...

Six years from that first summer in Gravity Falls, Dipper and Mabel must find a way to save the Mystery Shack from shutting down. Their idea is a simple one, but it just might work! Rated M for language, shenanigans, and you know- hot, sweaty romance. ;)

In the small town of Gravity Ascends, Pacifica and Gideon expect a quiet summer working at Gideon 's uncle's shop. The town's local celebrities, the Gleeful twins, however, have other plans involving a blue triangle demon. Their uncles have assigned them a mission to obtain all three journals in order to summon Will Cipher, a dimension travelling demon.

By day in Greasy's diner, she's "Penny" the sweet-hearted waitress. When she leaves she's Pacifica Northwest, former-heiress who's trying to become better. Because sometimes a new name can make all the difference.

In which a GF-fangirl wakes up to find herself in the body of a baby Bill Cipher before the events of canon happens. Welp, lets see how much she can mess this up. (this story belongs to mizuuma on a03 its NOT mine i just got permission to post it from the real author)

[Gravity Falls/ParaNorman/Over the Garden Wall/Coraline crossover] It's been years since Mabel and Dipper have been to Gravity Falls. This time, though, the threat is one unafraid of the corpses it leaves in its wake. The gang must prepare for a civil war of godly proportions. ((Romance subplot)) Rated M for disturbing imagery/gore (27/28? Complete)

In a distant universe of that has been stuck in the 1920's for a trillion years, the Cipher brothers struggle to get by. Demons casually walk among them, and they kneel at their feet...until Bill tips the scales. Find out how Bill became the Overlord of Weird, and how the Ciphers were torn between dimensions.

Ford discovers proof that Nathaniel Northwest might not be the actual founder of Gravity Falls. Part 8 of the Flipside AU.

Sequel to Little Words of the Fire. Dipper and the Radicals return to Gravity Falls during Winter Break after Mabel suspects that they have not finished their work on the investigation of Olivia Witherspoon. While Dipper is happy that he gets to be back with his family and friends, he doesn't think things are going to go too well. Because what could go wrong? Everything.