A pregnant 18 year old fell into the underground after running away from her fiancé, Toriel takes her in. Romance blossoms between her and someone else in the underground. But something is up, Siena, Frisk, and Sans try to figure out what it is. Trigger Warning: Mentions of SA, Slurs, and Dark Themes.

"It's only thanks to you that I could change from a sadistic ogre to what I am now. I feel alive for the first time. I can't thank you enough, but I can write down my story." Chara narrates how they accompany Frisk from a Genocide Run to a truly happy ending. The power to reset timelines is of course helpful for that, but this alone won't be enough to make amends for their deeds.

Toriel tries a more adult option to keep Frisk from going into the ruins.

Born into a life of cruel subjugation and confinement, a young child discovers that a different kind of prison might just become her safe haven. But nothing is ever that simple. With a deadline looming and troubles starting to pile up, a new friend with a lazy grin could be just what she needs right now. Multiple AU's. Slow burn. Female Frisk. Contains OC's. Eventual SansxFrisk

"Long ago, two races ruled over Earth: Humans and Monsters." One race feared for their strong souls, the other for their magic, and the mages caught between them feared for both. All silently knew that war would be inevitable. The only thing that mattered was surviving it. One crimson mage understands that well, and is determined to keep herself and those she cares for alive.

You are dropped into the underground world, home to many monsters when a very voluptuous goat mom approaches you and takes you in. There are many mysteries centered around you. It is up to you if you wish to uncover them. This thicc monster lady would like to help, but she wants quite a bit from you. Will you be able to satisfy her overwhelming needs like her husband? Could what yo

A kid falls down a vast chasm into the deep, and is set upon by countless monsters eager to murder whoever falls down and claim their souls. Somehow, this child is the villain in your story.

(THIS IS VERY AU BASED. ASGORE / TORIEL ARE TOGETHER AND ASRIEL IS ALIVE. CW OF ABUSE / CHILD ABUSE, TRAUMA, AND DARK THEMES ARE PRESENT) It's almost been a decade since the war of the humans and the monsters had ended. Centuries of conflict have left the Underground in a state of repair and despair. Although it's going to get a lot more interesting when a soul of Bravery falls.

This is just a simple Oneshot that came to my mind after playing Undertale Red and Yellow version 2.0. What can I say? I love this ship. If you like, I can make individual chapters about the 'life' of these two ghosts!

After countless resets, Frisk only wants one thing, to SAVE the unSAVEable. Asriel Dreemurr, the Prince of the Underground and the only other person who truly understands her. Frisk is determined to be with Asriel, to give him a soul, and to live the happily ever after they both so desperately deserve. Frisk is Female, I don't own Undertale.

After Frisk's father died when she was eleven and her mother became heartbroken Frisk swore she would never fall in love... until she meets a very punny skeleton named Sans.

Luna thinks everyone has forgotten about her birthday, but is that truly the case? Birthday request story done for paradise dazzleshine. :)

Sans is tired of the resets. He decides to do something about it to change things for the better. Everything just sort of goes downhill from there. Created By: AveragePotato

After falling into the Underground, Frisk is found by a young Monster and taken home, where they find friendship and family, and make a new life for themself in the Kingdom of Monsters. But despite the happiness, something lingers in the back of their mind, and soon, they find a way to repay the kindness which they have been shown.

Daniel es un chico de 20 años con un gran apego a su cariñosa madre, pero ella contrae una peligrosa enfermedad que le costaría su vida, para poder curarla necesita un ingrediente muy especial. Flores Doradas, Daniel debe partir al Monte Ebott pero caería en un agujero que lo lleva a conocer un nuevo mundo y a una bella mujer cabra, del cual el se enamora perdidamente.

After a tragic accident, a young boy named Vance wakes up in the world of Undertale his favorite game. Reincarnated as a human with magic powers, he finds himself living alongside the monsters he once knew only from his screen. With familiar faces and unexpected adventures around every corner, Vance explores the Underground.OC Harem Fic include characters from Deltarune/ UT Yellow

Amplification. The power to amplify... anything. including itself. ... let's see how this goes. not sure on the rating so I'll just leave it on the minimum until I write something to raise it up. kind of fast paced. I hate stories that just drag on and on. Minor system.

Short stories set in the VOXISTALE universe.

¿Alguna vez pensaste qué sería de este mundo si las leyendas resultaran ser ciertas? ¿Si las historias transmitidas de generación en generación sobre criaturas desconocidas fueran reales y no simples relatos ficticios? Sin duda, a cualquiera le daría intriga indagar en la veracidad de este asunto. Más aun si vives cerca de uno de los lugares más famosos del mundo.

RESETING after another True Pacifist run through the Underground, Frisk puts themselves into a situation they found too difficult to finish. After meeting with Sans, Frisk decides to RESET one more time and regain their happy ending. But they find themselves unable to continue; instead, they stay behind to SPARE the Monsters they called friends the burden of knowing them.

[Horrortale AU] After their fight against Omega Flowey, Frisk left the Underground to get help and save their friends. Unfortunately, humans are not as comprehensive as monterkind and they didn't believe them. How to change their mind ? In the Underground, the situation is getting worse. Toriel and Undyne are fighting for the throne, and chaos is taking place in the Kingdom.

Asriel is miraculously revived and is living happily with Frisk, Toriel, Asgore, and the other monsters. But Frisk has a secret, and Chara is tormenting them for it. 3 years later, they go back to Ebott and help Chara regain their compassion after having an empty soul for so long. A year after, Frisk is still the tiniest bit resentful towards Chara cuz..y'know. Fem Frisk Male Chara

In the wake of the human's devastation, Papyrus was made king, and his brother Sans was made to suffer the consequences of his own inaction. Papyrus has a lot to live up to, and as time goes on he is forced to face the past and make a grave decision for his people's future. (Speculative story about the King Papyrus neutral ending).

Just because your father is "Renowned Scientist Dr. W.D. Gaster" doesn't mean everything in life goes according to plan. Corbel H. Gaster knows this entirely too well. If trying to balance school, friends, and a life-altering disease wasn't hard enough, Corbel must also face the pressure of living up to his father's legacy. AU story for "The CORE of the Matter" CONTAINS SPOILERS!

In a reality where existence is a jigsaw puzzle of shattered worlds, a certain doctor has survived the collapse of his own universe and now embarks on a mission to build something new. Join one W.D Gaster utilizing the Observer, a creation of his own design, and navigate a realm where perfection is a mirage and every piece of a broken world holds the key to a bold new beginning.