Gravity Falls Crossovers
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Ninjago Falls by DippeySause reviews
What happens when the Ninja (and Skylor) fall into a portal that sends them to Gravity Falls? And what if Dipper and Mabel are there to see them? You have to read to find out. Bill might make an appearance later on. T for possible violence.
Crossover - Ninjago & Gravity Falls - Rated: T - English - Adventure/Mystery - Chapters: 43 - Words: 46,899 - Reviews: 82 - Favs: 26 - Follows: 24 - Updated: 3h - Published: 6/14/2015
Under Falls by Chara Dremurr reviews
12 year old twins Chara and Frisk have to stay with their Great Uncles Sans and Papyrus for the summer in a town called Under Falls, OR. But they soon discover that the town isn't entirely what is seems. Based off of the Under Falls AU. (They're both girls, explained in first chapter.)
Crossover - Gravity Falls & Undertale - Rated: K+ - English - Mystery/Parody - Chapters: 3 - Words: 10,746 - Reviews: 3 - Favs: 2 - Follows: 3 - Updated: 4h - Published: 8/20
Giffany and the Scary Situation by XANAVirus reviews
Giffany's video game gets bought by a man named Vernon in desperation for some love & affection, not yet knowing of the true horror of the situation she has been brought into. With time, she might learn to care for someone else and in a slightly different way, or is Giffany doomed to suffer under the terrible attitude of Vernon as her penance forever?
Crossover - Harry Potter & Gravity Falls - Rated: T - English - Hurt/Comfort/Family - Chapters: 6 - Words: 16,567 - Reviews: 1 - Favs: 2 - Follows: 7 - Updated: 5h - Published: 8/24 - Harry P., Giffany - Complete
Falling into Unknown by lord fluffy47 reviews
Mabel Pines has moved into a new town. To settle in she heads to a costume party with an awkward new friend. Although a series of accidents occur leaving the two on a train ride into unknown. Wirt/Mabel
Crossover - Gravity Falls & Over the Garden Wall - Rated: T - English - Romance/Adventure - Chapters: 5 - Words: 13,303 - Reviews: 12 - Favs: 18 - Follows: 18 - Updated: 6h - Published: 10/25/2015 - [Mabel P., Wirt]
Phantom Falls by FrostyPines reviews
Something strange is going on in Gravity Falls, or so Danny Fenton thinks. He's on a mission to figure out what's happening and how to stop it, but things don't go as planned.
Crossover - Danny Phantom & Gravity Falls - Rated: K+ - English - Mystery/Humor - Chapters: 17 - Words: 13,482 - Reviews: 49 - Favs: 63 - Follows: 100 - Updated: 13h - Published: 7/22/2015 - Danny F., Dipper P., Mabel P., Bill
Something seems off by OakwoodOuroboros reviews
After having defeated the Beast, Wirt and Greg (and Jason Funderburker, of course) finally find an exit to the Unknown, but where have they ended up? Will update more if positive feedback is received! Author notes on my profile page. By the way, should I continue posting them there, or is it annoying to go back to it all the time?
Crossover - Gravity Falls & Over the Garden Wall - Rated: K - English - Family/Mystery - Chapters: 8 - Words: 11,698 - Reviews: 3 - Favs: 5 - Follows: 6 - Updated: 19h - Published: 5/29 - Dipper P., Mabel P., Gregory, Wirt
the mistery kids: reunión enemiga by Cheesecake3823
hola este es mi fic (ejem) perdon nuestro fic quienes no sepan quien es chequen mi perfil, bueno en esta historia es un crossover entre gravity falls, mas alla del jardin, paranorman y coraline, que pasaria si el final de gravity falls que conocemos no sucedio asi y si lo vencieron de otra forma pero que consecuencias traera este nuevo final talvez algunas malas y otras muy buenas.
Crossover - Gravity Falls & ParaNorman - Rated: K - Spanish - Adventure/Humor - Chapters: 2 - Words: 3,220 - Updated: 23h - Published: 8/19 - Dipper P., Mabel P., Norman B., Agatha P.
Gravity is Supernatural by GravityFalls61816 reviews
Dean and Sam needed some rest from the never ending jobs and long car trips. In between a hunt they pull in to the sleepy town of Gravity Falls where it might not be as sleepy as they thought. And when they run into a certain set of twins things only get weirder.
Crossover - Supernatural & Gravity Falls - Rated: K+ - English - Humor/Supernatural - Chapters: 16 - Words: 12,465 - Reviews: 28 - Favs: 59 - Follows: 84 - Updated: 8/23 - Published: 10/22/2015
Under Friends by Lidya Schattenspiel reviews
AU de los Bad End Friends combinado con Undertale, donde los Bad End son monstruos y tu eres el humano. Batallas, finales y más.
Crossover - Gravity Falls & Undertale - Rated: T - Spanish - Adventure/Romance - Chapters: 3 - Words: 3,700 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 8/23 - Published: 8/16 - [Bill, Dipper P.]
Gravity is Universal by Lait1 reviews
Connie travels with her family to attend the Northwest soirée. What could go wrong? The east and the west meet to overcome a threat. Tales stretch across the ages. What would cause a Rose to fight against other Gems? Why? She did keep her secrets..
Crossover - Gravity Falls & Steven Universe - Rated: T - English - Supernatural - Chapters: 18 - Words: 58,819 - Reviews: 70 - Favs: 12 - Follows: 19 - Updated: 8/23 - Published: 5/20/2015
The Prophecy by Azerath quarts pines reviews
Gravity falls, Harry potter, Steven universe, star vs the forces of evil and avatar the last airbender collide when they all attend hogwarts (currently under major reconstruction)
Crossover - Harry Potter & Gravity Falls - Rated: K - English - Fantasy/Adventure - Chapters: 3 - Words: 2,951 - Reviews: 9 - Favs: 5 - Follows: 5 - Updated: 8/23 - Published: 4/12
Venom's Quest by Donjusticia reviews
Throughout the four dimensions, Starve Venom Fusion Dragon is known as the most evil dragon of them all. His brutality matched only by his hideous form. But what most people don't know is, behind that twisted, venomous exterior lies a heart of pure gold! Join Venom's happy-go-lucky quest to spread egao to the entire multiverse.
Crossover - Yu-Gi-Oh! Arc-V & Gravity Falls - Rated: K+ - English - Humor/Parody - Chapters: 12 - Words: 117,123 - Reviews: 41 - Favs: 18 - Follows: 14 - Updated: 8/22 - Published: 5/16
Gains And Losses by Ericho reviews
When an old enemy comes back to travel to the Universe of the unicorns to learn more about his weakness, Dipper will experience his biggest loss but also his biggest gain.
Crossover - My Little Pony & Gravity Falls - Rated: T - English - Romance/Drama - Chapters: 2 - Words: 1,672 - Reviews: 3 - Favs: 1 - Follows: 1 - Updated: 8/22 - Published: 8/13 - Dipper P.
Silent Falls by Kazriku reviews
The Pines brothers went to Silent Falls in October 1972. Tragedy happened and one brother is lost. Years passed and the surviving brother struggles to remember lost memories and find answers as he began to have strange dreams concerning Silent Falls. What secrets will he unveil as he digs deeper for answers?
Crossover - Silent Hill & Gravity Falls - Rated: T - English - Drama/Mystery - Chapters: 8 - Words: 27,974 - Reviews: 8 - Favs: 7 - Follows: 4 - Updated: 8/22 - Published: 10/4/2015 - Grunkle Stan, Pacifica N., F. McGucket, Grunkle Ford
Under the Falls by Nick169 reviews
When Dipper, Mabel and another young girl fall into the underground of Mount Ebott in Gravity Falls, they must work together and make their way out the Underground, and get home. But things are not what they always seem, as a flower and certain demon stalk them from afar... My first story. Based around episode 15 of season 2. I will refer to Frisk as female.
Crossover - Gravity Falls & Undertale - Rated: T - English - Humor/Adventure - Chapters: 2 - Words: 3,785 - Reviews: 2 - Favs: 6 - Follows: 5 - Updated: 8/21 - Published: 8/19 - Dipper P., Mabel P., Frisk
Marco Diaz vs The Falls by camilapia reviews
"Look, Mole, life is unfair" Bill came even closer to Marco."I only need a little device, a dimensional rift" he explained clapping his fingers and showing the device he wanted. "You lost her once for playing it safe, and now you have the chance of getting her back, you'll even finally be a bad boy. So, do we have a deal or not?" Marco sighed before shaking hands with the demon.
Crossover - Gravity Falls & Star Vs. The Forces of Evil - Rated: T - English - Adventure/Mystery - Chapters: 14 - Words: 81,243 - Reviews: 33 - Favs: 19 - Follows: 26 - Updated: 8/21 - Published: 4/10 - [Marco D., Star B.] Dipper P., Bill
Anomalies by Chi-Chi's Poptart reviews
Dipper and Mabel are back in Gravity Falls for their first year of high school. In edition to studying the books, Dipper also wants to spend some time studying the town's many anomalies, first and foremost, a mysterious group of strangers who have only recently begun to call the town their home.
Crossover - Gravity Falls & Don't Starve - Rated: K+ - English - Humor/Friendship - Chapters: 1 - Words: 1,900 - Reviews: 1 - Published: 8/21
gravity falls Dipper and Mabel adventures to the Mutiverse 4 by redcat5 reviews
on the next stop on the multiverse journey is a foster home for living imaginary friend. Ford and Dipper think that the Bill Cipher is the reason for the imaginary friends being alive. but Mabel is having second thought about it.
Crossover - Foster's Home for Imaginary Friends & Gravity Falls - Rated: K - English - Adventure/Humor - Chapters: 5 - Words: 4,576 - Reviews: 3 - Favs: 3 - Follows: 4 - Updated: 8/21 - Published: 4/5 - Complete
Unexpected by Cartoonical reviews
Dani was out exploring America when she unfortunately managed to get struck by lightning in surprise surprise, Oregon! The Pines twins are nearby and help her. This story tells of how Dani meets the twins and shows the start of what could be a long series of adventures. What could go wrong? Previously written as Everyrosehastheirthorns
Crossover - Danny Phantom & Gravity Falls - Rated: T - English - Supernatural/Adventure - Chapters: 15 - Words: 36,012 - Reviews: 57 - Favs: 46 - Follows: 53 - Updated: 8/21 - Published: 1/17 - Dani, Dipper P., Mabel P.
The Deal by DarkSoul378 reviews
A young, sad, and lonely girl made a deal with a mysterious being. But what does this have to do with Fairy Tail or the Gravity Falls gang, and who is this strange girl? All will be revealed...
Crossover - Fairy Tail & Gravity Falls - Rated: T - English - Adventure/Family - Chapters: 4 - Words: 2,648 - Reviews: 6 - Favs: 1 - Follows: 3 - Updated: 8/21 - Published: 7/6 - Lucy H., Dipper P., Mabel P., Bill
A Triangle in the Stars by Vampire Tails reviews
*Collab* While the Gems are away, one day Steven "stumbles" upon a new roommate... his life will be turned absolutely upside-down. Rated T-
Crossover - Gravity Falls & Steven Universe - Rated: T - English - Friendship/Hurt/Comfort - Chapters: 7 - Words: 14,254 - Reviews: 40 - Favs: 21 - Follows: 20 - Updated: 8/21 - Published: 6/24 - Bill, Steven U.
Undertale: The Aftermath by HyperdeathByFanfic reviews
It's been eight years since the true pacifist route. Everyone is free on the surface (including Gaster and Chara). Things start to get dark, darker, yet darker… My first Fanfic, lots of OC's, Friskriel and CelebriDogs. Previously called Lost in Darkness.
Crossover - Undertale & Gravity Falls - Rated: T - English - Adventure/Humor - Chapters: 7 - Words: 6,939 - Reviews: 11 - Favs: 1 - Follows: 4 - Updated: 8/21 - Published: 7/24 - [Frisk, Asriel] Bill, Chara
Quelque chose ne va pas by OakwoodOuroboros
Traduction de "Something seems off" AU. Wirt et Greg ont vaincu la Bête, mais quand ils arrivent enfin à s'échapper du Unknown, ils se retrouvent quelque part de très étrange... Toute aide sous forme de commentaire est appréciée! Les notes sont dans ma page de profile.
Crossover - Gravity Falls & Over the Garden Wall - Rated: K - French - Family/Mystery - Chapters: 2 - Words: 2,766 - Updated: 8/21 - Published: 6/20 - Wirt, Gregory
Mabel and Dipper VS A Very Weird Highschool by Br0k3n K3yb04rd reviews
With summer over, Mabel and Dipper were certain their high school life would be nothing like Gravity Falls. But when a certain princess from another dimension accidentally loses her wand, will Mabel be able to make herself return it? Features characters from Star Vs. the Forces of Evil, Gravity Falls, Invader Zim, Steven Universe, and misc. cameos.
Crossover - Gravity Falls & Star Vs. The Forces of Evil - Rated: T - English - Humor/Drama - Chapters: 6 - Words: 4,863 - Reviews: 9 - Favs: 6 - Follows: 5 - Updated: 8/21 - Published: 8/18
Mystery Kids: Someday Dipper Would by MayDayGirl-Save-Our-Ships
When Norman and Dipper find themselves stuck in a storm, a mysterious ghost reaches out to assist them. Dipper/Norman. Oneshot. Third Summer. Part of the Mystery Kids Case Files Series (You don't need to read the other fics to understand this)
Crossover - Gravity Falls & ParaNorman - Rated: T - English - Humor/Romance - Chapters: 1 - Words: 4,259 - Favs: 3 - Follows: 1 - Published: 8/20
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