What if two humans were in the Underground at once? What if one human was DETERMINED to stop the other? What if they could both SAVE? What happens when an Unstoppable Force meets an Immovable Object? When a certain scientist pulls enough of himself together, he finally finds a way to stop the destruction of his world. (Undertale AU. Rewrite of DT.)

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.

A single choice has a huge impact. Not just on one person's life, but on everyone around them. In the Underground, there are many paths one can take. But when Frisk makes a choice that takes them off all the known paths, the world is changed forever, and Frisk becomes intrinsic to the fate of not just Monsters, but the whole world.

Thanks to a visit from an alternate Gaster, Frisk now has the power to heal the AUs, but something is trying to stop her. Can she succeed in her quest? Done as a request for dream1990. :)

Their plan had failed, they were going to die. A voice within struggled with what they did and was forced to watch their best friend die. It was over, but was it Really? The voice within tried to get him to get up, tried to do anything and when it seemed darkest they woke up.

Flowerfell AU

Antes de los acontecimientos del capítulo 0.5 de su evento especial, Ink se encuentra con rostros a los que no había visto en milenios. Antes de él, antes de Error, antes de todo. Todo juego tiene sus moderadores y los suyos están molestos con Ink y amenazan con dejarlo fuera de su propio juego: El evento X. [NINGÚN OC ES EL LECTOR]

The story right after Undertale.

A twist of fate? The path set by destiny? Or some kind of a prank played by the gods? For one reason or another, you've lost everything yet gained so much more. You have the knowledge and the power to change the world, so use it wisely. Follow your heart, seek out the answers and don't forget - you are not alone.

A young boy decides to treck up Mt Ebott and falls into the underground, now joined by two ghostly companions. How will their journey take shape? [This summary will be changed at a later date]

Humanity had lost the war over 600 years ago and sealed themselves in the underground, now on the brink of overpopulation and starvation The Core of the underground was set off in a massive explosion killing all but two hurtling these two people into the unknown. While the explosion caused universes to collide and merge together leaving a Skeleton confused on his 4 new brothers.

There are monsters in the forest. Now trapped within the endless woods surrounded by mask-wearing individuals, it is up to Frisk to discover the truth of the forest and to find the lost past of her mask companion all while hiding what she is from those who would seek to wear the skin of her face as their own.

Tell me my friend. A story as my eyes fall, one last story of how it ends, how it begins... and once its over let my eyes fall peacefully, and then when we meet again you can tell me everything new. "Well... it all began with a tear." Indefinitely on haitus.

December 25, 2015 Mysterious black briars destroyed the whole of Ebott. Every inhabitant was lost except for a pair of brothers. Not long after, a tragedy claimed the younger one. Since then, the sole survivor did everything he could to prevent the calamity from spreading further.

(UTMV Sanscest) A severed rope is hard to reconnect, a torn wire on the other hand.. Ink does something in a fit of desperation that shifts the course of Multiverse as everyone knows it, and somehow drags Error along with him. And The Creators are not that happy about it, to say the least.

An informational guide to the traits, powers, and anatomy of human souls.

Sans is saved after the human nearly kills them. Whelp, only one thing left to do. For Whumptober Day 1: All 4 Prompts: "But now this room is spinning while I'm trying just to fill in all the gaps." Safety Net Swooning "How many fingers am I holding up?" Prompt: Confrontation for Bad Things Happen Bingo Oneshot

Sans takes Frisk to pick apples. Oneshot For promptober Day 1: Apple Picking

Sans feels bad for ruining Frisk's first Christmas with their new family, can he make it up to them? Oneshot For fictober23 Day 1, Prompt: "It's not too late, let's go."

Something happens to stop the normal flow of a Genocide run. An anomaly appears...but maybe it's not the one you think. *Trigger warnings: there might be some violence/threats/feeling trapped and self-harm at some point

in this story explores the aftermath of a dark past, following Dust (formerly known as Sans) as he grapples with the consequences of his actions during the Genocide Route in Undertale. He seeks redemption and struggles to cope with the weight of his past deeds. Meanwhile, Frisk, driven by curiosity and a desire for power, represents the darker aspects of humanity.

Amilia has finally found a place to start over but things are not as Happy as thay might seem. will Amilia be trusted by everyone and be able to heal/fix the damage shes done? follow Amilia on her path to healing old wounds and possibly make new friends. Authors note: i,m continuing where the ask mercy series left off the first chapter will retell the last genocide.

"Might controls everything. And without strength, you cannot protect anything." A man falls into the underground and finds himself face to face with a demon. But he doesn't have the strength to beat them. In order to protect the ones he loves, he swore to do what ever it takes. Even if it means becoming a demon himself. (Based on XWolf26's DoubleTale)

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

Ever wondered how Sans is so compliant to Papyrus' demands, well let's take a look to Sans' training, shall we? Underfell AU. Written for the prompt brainwashing for Bad Things Happen Bingo. Oneshot