George's life kinda sucks, and he knows it. But when he gets transported into the world of Adventure Time, at the start of the serie, what will he do? Will he try going back, or will he start a new life? K for mild swearing (like "shit")

Finn fails to discover his prosthetic's additional features when he's locked in the ziggurat. This leads him down a dark, painful path, on which he is changed forever.

Adopted by Princess Bubblegum as a baby, Finn grows up as the prince of the Candy Kingdom. However, royal life can't contain his adventurous spirit. Dreaming of becoming a hero and protecting Ooo, Finn is determined to prove himself—even if it means defying his mother's wishes as she struggles to balance her protectiveness over her son destined for greatness. (FinnXHarem?)

The Winter King is accidentally brought back to life and is adopted by a normal-ish human girl named Danny. He doesn't know what happened or what he is, but he knows he needs to find Fionna and Simon before Princess Bubblegum catches him to take her revenge. I don't own any of the adventure time characters. This is just for fun.

Simon gets the power of the crown, but he doesn't lose his sanity or Betty. The war happens and Simon and Betty find Marceline and raise her as their own. The new family face many difficult challenges. A story in which a hero will rise and help defeat a great evil in the distant future. A different Ooo will rise and take shape. Also there will be many crossovers.

Finn, a boy looking to fit in and find his identity, navigates between the expectations of his overprotective mother and the contradictory emotions he feels towards his friends. Fern, meanwhile, struggles with his past and his own demons as he tries to survive in an environment that seems to give him no peace [Finncest AU] Please leave comments and reviews

Ordered by the Big Boss, Prismo gathers a large assortment of folks across Ooo to react to a universe where Finn Mertens lived a normal suburban cushy life and is transported to an alternate world of Ooo where the adult modern-day Finn must survive in a strange and alien world. [Reaction Fic][Takes place a year after Glob's defeat]

Omar lived his life as a sharp-tongued thinker and outcast, but after his untimely death, he awakens in the magical world of Ooo as Finn the Human. This isn't the heroic Finn you know—armed with a mysterious system that grants him quests, rewards, and the tools to dominate, Finn is on a path of absolute conquest. His goals are clear: to rule the world of Ooo and beyond, and to bui

prismo discovered an alternative ooo where Finn and Phoebe lives are swap

Just when Prismo, Fionna, and Cake think they have finally defeated Scarab, he starts causing chaos, and they befriend a new ally to defeat him once and for all.

21-year-old Finn Mertens had it made as a suburban Californian young adult; a mother and father that loved him, he graduated college, his trusty dog, Jake, and his online videogame buddy Fionna, but before he could join the Marines, Finn is whisked away to a magical world called the land of Ooo that is in dire need of a champion... (Will contain Lemons) (FinnxHarem)

Treachery swirls around the King of Ooo, as the violent factions acting against his empire grow their power in secret. His brother's family becomes increasingly fractured, as Kim Kil Wan pursues his vengeance against the man he once called 'uncle'. Meanwhile, Minerva the Finn-mom and her team strive to repair the Ark's damaged control system before the massive colony falls on Ooo.

Finn had lived out his entire life and was ready to pass on. He had seen it all and been there and done that. While he had many great memories, he also had many regrets, each one bigger than the last. If only he can go back in time and fix things, but time is immovable… At least that's what he thought at first.

Finn, un chico que busca encajar y encontrar su identidad, navega entre las expectativas de su madre sobreprotectora y las emociones contradictorias que siente hacia sus amigos. Fern, por su parte, lucha contra su pasado y sus propios demonios mientras intenta sobrevivir en un entorno que parece no darle tregua. [AU Finncest] Dejen reviews, por favor.

Kind of a Prequel Revival to my old story of Beautiful Accident, its just Finn and Jungle Princess having various adventures with each other and being all Romantic during the process.

What happens when Finn finds his twin sister he doesn't know about? Will Fiona and Marshall Lee ever be reunited again? Will Finn and Marceline ever know that their related? Why are there so many question? Questions will be answered

An Adventure Time adjacent show, we follow the tales of a group of high schoolers who through wackiness and loredom lead their lives in a new land while dealing with enemies beyond Pendleton's paygrade. Think the OG show but brought down to "normal".

Long-fic, possible discarded chapter of the discontinued fanfic "Keep Yourself" [with authorized translation], may contain slight changes to the original structure of the episode "The Ultimate Adventure", along with some references to the work done by blesenche. Hope it will be of your liking [Finncest/Fernfinn] leave reviews

Finn and FP meet Jake’s pups

Long-fic, posible capítulo descartado del fanfic "Keep Yourself" [con traducción autorizada], puede que contenga ligeros cambios a la estructura original del episodio "The Ultimate Adventure", junto con algunas referencias al trabajo realizado por blenselche. Pero espero que sea de su agrado [Finncest, leve Bubbline y otras parejas random] Dejen reviews

The war of Ooo was prevented, and the mighty Golb was stopped. But the adventure isn't over yet. It's just beginning. Watch as The former Last human faces many challenges and Himself. Co-written by AdventureKing2017 New Cover Image

He lives among other humans, his mother is back in his life, and he's even got his arm back. Life couldn't get any better for Finn the human. That is until she comes along… (Post Finale, 1st POV. Also, a big thanks to mahmusx on DeviantArt for the story cover)

After the events of Freak City, Rachel decides to have a fun night with what was once considered a curse placed on her by Magic Man and stabilized by her tiara, leading to the creation of the most unusual club.

Join Finn, Jake, and Ice Princess Rachel as they embark on their many mathematical adventures as they strive to keep Ooo safe as righteous heroes.

Esta aventura no es como las demas, no hay harem, no hay poder roto, y es tu decision si formar parte de ella.