In this crossover, shapeshifting monsters are all around the Boiling Isles, so once Luz, Amity, and Eda meet the Pines family, they work together to get rid of the monsters. What will happen? Read to find out :)

Ford finds someone knocking on his cabin door. A young graduate student has heard of his research at Gravity Falls and wants to work as his assistant. What are the odds that their specialty is theoretical physics and trans dimensional portals? Has his muse answered a call for help he was too afraid to ask for? Venture Bros, Rick and Morty, and Inside Job crossover

After dealing with his sisters' antics, Lincoln decides to make a deal with the mysterious Bill Cipher. However, things do not go as planned. Bill takes over Lincoln's body, ready to cause mischief. It gets worse when Bill plans to bring Weirdmaggedon back to the world. Can the Louds with a few allies of theirs bring back Lincoln? (Credit for ArtisMyMarc for the cover and OG story)

(it's a crossover between gravity falls, loud house, miraculous, and star vs the forces of evil) while they are the exchange students they will face a problem that can be resulted the end of the world

Después de que Helga y Arnold fueran transferidos a Gravity Falls una trama del futuro se desarrolla sin que Dipper Pines, Mabel Pines, Helga Pataky, Arnold Shortman lo sepan, que paso veinte años después?, pero sobre todo que es el libro numero cuatro

NOTHING TO SEE HERE! Nope, just a boring story about some boring kids named Dipper Pines and what's-her-name going on a dull vacation to lame Gravity Falls with their parents Brett and Reagan. Who are TOTALLY not imposters! So don't even read this! We'd redacted it all for being dull if we were a shadow government- WHICH WERE NOT! Oh, look a Clop-fic! Go read that instead!

After his epic adventures at Gravity-falls Dipper finds it hard to fit in and live normal again he misses the thrill of adventure. but when three figures and a few unwanted foes show up, Dipper, Mabel, and their new friends team up to put an end to everything. But they forget one something or Someone...

The louds siblings are sent to Gravity Falls to spend summer with their Grunkle Stan and their cousins Dipper and Mabel. At first, the place might be a boring one, not even with Clyde, Ronnie Anne and Bobby Gravity Falls doesn't seem that exciting. However, as their explore the town even deeper they discover that there is more that the town has to offer as a journal is found.

Thanks to Soos finding a flashlight that can bring to life any drawing and him watching cartoons and animes on the tv. He brings to life a bunch of cast members from many different shows. Now with Gravity Falls the center of the mess, the rest of the world turns their attention to the sleepy little town.

Following the devastation of her hometown and the presumed death of her Parents, Mabel is forced to separate from her Brother as she is tucked away in the Mountain Town of Crossover, Find herself coping with all new friends and earning new enemies, Mabel stumbles upon a military occupation of the town, Searching for a certain green beast with a craving for one thing, Smashing.

What if instead of Billy and Mandy, it was DIPPER and MABLE who won that fateful bet? Right before their epic journey to Gravity Falls? Will the twins survive the great supernatural forces arrayed against them...er, I mean...the even MORE supernatural forces arrayed against them? Tune in to fined out!

Earth is world fill of Mutants and is about to be introduced to a Realm of Magic and Monsters Called Mewni as The Princess is sent to attend a school known as Xavier's School of Gifted Youngster. What is to unfold is yet to be known

Earth is world fill of Mutants and is about to be introduced to a Realm of Magic and Monsters Called Mewni as The Princess is sent to attend a school known as Xavier's School of Gifted Youngster. What is to unfold is yet to be known

What if, instead of Beach City, the Crystal Gems had settled down in a little backwoods town just west of weird? What if, upon coming to Gravity Falls for the summer, Dipper and Mabel were to befriend Steven and Connie? How would they fare against the combined threats of merciless Homeworld Gems and a certain triangular demon? (DEAD/ABANDONED)

A couple weeks into her adventures in the Boiling Isles, Luz gets invited back to Earth by Eda in order to help with a "special" haul of human junk. Though a bit reticent about going back, Luz agrees to go - Eda seems convinced that she'll enjoy this visit. Imagine her surprise when the portal delivers them to Gravity Falls - which just might be the strangest place she's been to...

Team RWBY and JNPR end up in the small town of Gravity Falls, where they met the Pine Twins and learned some of the town's weirdness. However, some Grimms have come to the world, and the team must protect the town while trying to get back home.

The Kanto region. It's home to over 100 Pokemon, and has some of the most skilled Pokemon Trainers in the world. It has adventure, danger, and mystery! It also has a certain young man, finally starting out on his own Journey. Follow Mason Samuel Pines, aka Dipper, on his journey to catch them all on his mission to complete the PokeDex!

For years Dipper thought that he'd never see a place weirder than Gravity Falls. One day he and Pacifica accidentally found their way to someplace weirder. But there's no easy way back home, yet they don't seem to mind. With all new possibilities at their fingertips, Dipper and Pacifica will certainly have a magical time, for better or worse.

Bipper, Beast Wirt, Farmworld Finn/Ice Finn, and other Bad End Friends' origins, how they met, and their adventures.

Two years after setting sail Stan and Ford return home. They reclaim the Mystery Shack. And get it ready for the kids to come for the summer. Ford gets to have Yumi come to Gravity Falls for the summer. But is nervous on what she will decide. Will she stay with him after the summer? Or will she got back to Japan? Complete!

An abandoned amument park just reopened in gravity falls. Along with a few wonders. K in case.

After Mr and Mrs Pines find out about their children's near death experience they decide to send them to Beach city a normal town (Or is it?). There the Pines twins meet Steven and the CGs. But when an old enemy awakens ready to obtain his vengeance...Lives will be lost and war will be fought.(The story is over, see Author's notes)

After Dipper and Mabel's premature death in a car crash, the two find themselves in a new horrifying world as baby witches, but hey, they're used to weird. they'll face many challenges in this new world, but more importantly, why does one of their grandparents always has to have a criminal sibling with a portal to another dimension? (Inspired by the cover made by @Citrusbluebelly)

Set after Young Blood, Old Souls. "If he wants to shirk the blame, he'll have to invoke my name. One way to absolve his crime. A different form, a different time." After a mishap, Luz and King find themselves in Gravity Falls. But as Luz tries to find a way back to the Boiling Isles, King starts finding things and people to be very familiar...

An incident at the USJ sends four UA students spiraling into another world, where quirks don't work and the supernatural runs rampant. Will they thrive in this new environment and find their way home? Or will the dark secrets of Gravity Falls claim new victims?