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.

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. Artis: Kushii

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?)

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

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.

Marshall's birthday is coming up in a month and Marceline wants to throw him a party. However, Marshall feels like his friends forgot all about him. An old friend of his comes back out of nowhere and kidnaps him before Fionna could find him. She is pregnant with someone's child. What does Marshall's old friend have in store for him and his friends? Will they ever see Marshal again?

How many words is too much and how few are too little? In a complicated, yet currently working, relationship of Marceline and Bonnie they are still figuring this out. But do they have to do it on the anniversary of them moving in together? Apparently so.

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.

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")

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

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.

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.

Scarab makes a wish that forces Prismo to live with Fionna and Cake in a world that he created, but he has harder things to face...

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Simon had transformed into a swamp monster for years at his point, and lost most of his human memories when a human wanders into the woods where he's been living for years. Betty is determined to understand what these rumors of a woodland creature are about and find hard evidence of its existence and understand how he came to be.

No poder entender las emociones o expresiones de los demás, por el motivo de que sólo estas hecho para hacer un sólo trabajo. Esta es la historia de Cosmos/Leo. Un ente creador el cual se le dio la tarea de convivir en un universo especifico para que pueda entender las emociones. ¿Qué clase de cosas pasaran en Ooo tras su llegada?, (Mejora con el tiempo) HIATUS

Finn lives between two intense loves, Bonnibel and Marceline, whose personalities contrast but intertwine in his heart. When a new threat appears, tension and jealousy threaten to tear apart what they have built.

Fionna and her friends embark on an adventure of their lives, and catch a glance of their original variants in the land of Ooo! [ Work in progress. ]

After a freak magic ceremony, Ice King's fanfiction comes to life and everything spills into Ooo! What hijinks and shenanigans will ensue?