(pic by Ohthree, link in AN) One little puppet is a small price to pay to learn all the secrets of the universe. Oh but I didn't hold up my end of the bargain, did I, Kid? Didn't you ever hear 'be careful what you wish for', Pine Tree? Then again you didn't pay much mind to the 'don't make a deal with the devil' thing either, did ya? Hah!

While out exploring the woods, Dipper and Mabel discover a strange creek that leaves them with some more... unexpected... outcomes. Hop along on their journey as they unravel more mysteries in the town of Gravity falls. This story is utterly and nearly completely inspired by the Monster Falls AU.

Bill Cipher and Dipper Pines have a deal. In order to protect his family, Dipper agrees to become Bill's apprentice. But at what cost? What other secrets is Bill hiding behind his past? Who should Dipper fear? Bill or himself?

Join the full-grown Mystery Twins and the rest of their family as they try to handle the endless paranormal absurdities and other ridiculousness that life continues to ceaselessly and inexplicably throw their way in this collection of one-shots from their near-future. Even as time goes on, there's still nothing that brings down the Pines clan. (Future-Pines AU)

(Inspired by the tumblr users who made this amazing AU) When Dipper accidentally falls in a supposedly cursed stream, what will happen to him? What will happen when the whole town comes in contact with the waters of the Fluvius Cantatis? (Cover image credit to cherryviolets on tumblr)

Dipper feels guilty for the monster curse, and so makes a deal with Bill Cipher to turn everyone human again, everyone except him. But of course, the demon messed with him and Dipper slowly transforms into a normal deer, his instincts growing while his humanity fades until it seems they've lost him completely. It's up to Mabel and the entire town to save him. Monsterfall AU

Takes place after "Not What He Seems." When the portal was activated, it sends Mabel and Dipper into another dimension, a place that is like their own Gravity Falls, but different. Gideon Pines and Pacifica Southeast get a surprise when Dipper Pines ends up in Gideon's uncle's basement! "Gideon...Why does he look like..." Pacifica trailed, "Like you...?"

Bill's not done with Dipper yet. If he can't find a way to get stronger, Dipper may be subject to constant possessions forever... Rated T for possession and upcoming violent scenes

"Shooting Star, we both know you're asking the impossible." "So make the impossible happen!" He pauses. "I can save your brothers mind, no easy feat mind you, on one condition. You become my wife." Mabel reached out and slapped him as hard as she could. On second thought, maybe that wasn't a good idea based off how red he was turning. MaBill with sides of Dipifica.

After a tragic accident claims the lives of their parents Dipper and Mabel Pines are left orphaned. Grunkle Stan becomes their guardian, and together they have to work together to overcome the ups and downs of growing up as a non-traditional family. They learn that while life may never be the same again together they can create a new normal.

A fanfiction based off of the Demon Guardians AU created by tumblr user starfleetrambo. Bill Cipher is guardian over Dipper Pines, and struggles to bond with his human, while Tad and Mabel seem to have no problems bonding at all.

Bill Cipher is bored and decides to start playing with Dipper's love life. How is a boy to survive when he is suddenly the center of all female attention? Can he make it a full day, or will he fall victim to the demons insane fun?

After Gideon is imprisoned, he devises a plan that will turn Bill Cipher into a human and cause him to lose his memories. How will Bill react to his new form, as well as some unexpected help from the Pines family? [Rated T to be safe. SPOILERS!] (Possible MaBill later on)

It all started with a spider. For once, Ludo actually has a good enough plan that might get him the wand he desires. But in result to that, Marco has been having dreams. Very dangerous, powerful dreams that have been influencing him very strongly. It's all up to Star to get her friend back. ((This story is better than it looks trust me))

The Demon Guardian AU that nobody wanted! Join Dipper and Mabel as they bond with their guardians and learn stuff. Magical stuff. It's great. No ships as of yet! Sry not sry.

Steven Universe X Gravity Falls. A chance encounter with a dysfunctional warp lands the Steven Universe and the gang in the mysterious Gravity Falls. They'll need to enlist the aid of Dipper and Mabel if they want to get home, but not before they help them solve a mystery of their own.

Dipper has exhausted himself, between fighting off monsters, working in the Shack, and staying up late deciphering the journal. He gets a terrible flu-like illness coupled with raging nightmares. Is it just a summer sickness, or is there more to what's ailing the Pine boy? Some horror and supernatural stuff with hurt/comfort (and invariably, care-fluff and sib-fluff) mixed in.

Wishing to receive more respect from his Grunkle and friends Dipper wishes that he could be older. What happens when this wish suddenly comes true?

As Dipper and Mabel continue their search for the author. They end up getting lost on a forest over the waterfalls. Meeting two Brothers who seems a bit too out-dated.

Bill Cipher is a demon, and, as all demons tend to do, he gets bored. And when Bill Cipher gets bored, his prime destination is usually the unfortunate town of Gravity Falls. Things quickly get out of hand, however, when he falls in a certain stream (curse that branch) and finds himself far too...mortal for his tastes. Monsterfalls. Cover image credit goes to zilleniose..

When Gilbert Beillschmidt is forced into the position of editor of the Gakuen Gazette, he faces two seemingly insurmountable challenges. 1. To raise the sales of the newspaper enough to make it self-sufficient. 2. Accomplish 1 while working alongside the insufferable gossip columnist Elizabeta Héderváry.