Asriel Dreemurr was the prince of the underground, but when a plan with his sister to free all monsters goes off the rails, and the barrier suddenly starts acting up. Asriel may have accidentally only freed himself.

Undertale is only a video game, right? An escape from a hectic life. But when a young woman is dragged through time and space into another universe, she learns her actions had very real consequences on the people now surrounding her. Can she make her actions right and find forgiveness, or will the weight of her guilt crush her as she fights to find her place in this new world?

Sans has always felt that something was wrong in the Underground, and that nothing he did mattered. However, a mysterious figure returns to his life after an extended absence and explains what has been happening, and it all starts with an innocent-looking flower. It appears that Sans will have to actually try for once. Drama, humor, no slash, realism, mild language and violence.

Before the war, there was peace. Even after death, she knows this. She just needs to remember. If she can remember, then she can help them. Only when she helps them, will she be able to move on. Or maybe she'll stay anyway. Who knows? Trouble can't be stopped by death and she's made some new friends.

Blue and Stretch are falling apart until they end up in Underfell. Sometimes something unexpected can bring people together.

A Red le encanta ser mala influencia. Parte 5 de ' Esto no es vida'. Red x Sans Edge x Red ( mencionado)

Sans realmente necesita dejar de hablar. Parte 4 de 'Esto no es vida.' Sans x Red

This is a messed up Fanfiction. I done f ked up with this boii, I wanted to make a fanfiction but I just mesed it up completely...Im new to this app so dont judge :( Alright thats it...why are you still here? Get out. Are you stil reading? You arent getting anything from this...STOP!

Something happens to stop the normal flow of a Genocide run. An anomaly appears...but maybe it's not the one you think.

Sans is really sick of the resets and it's making him depressed. He wakes up back underground after a pacifist run all he wants to do is drink away his problems. He has more problems than just the resets he's hopelessly in love with Grillby but he doesn't believe Grillby could ever love him back. Things'll reset anyway, right? It doesn't matter whether he confesses or not... Lemon

Sequel to "There Goes the...Underground?" After the barrier is broken, the underground dwellers are eager to explore the land they dreamed of. However, the political clash between monsters and humans severely hinders their progress. Meanwhile, Sergio gets a sudden awakening from an old "friend" of his. Will Sergio follow his counsel, or will his pride spell doom for everyone?

Flowey starts growing leaves

Luna is a monster human hybrid. The humans have taken almost everything from her once again and luna can't bear it. She jumps down mount ebbot hoping that the monsters would be more excepting. features two OCs Luna and Lucidia the rest of the characters belong to toby fox. uwu

Dust Sans was been transported into a universe where he made friends with a woman which is a dragon and a few years later a war came in and the only friend he has died, with the hatreds that are coming back to him he felt insanity again but he made a promise is to protect the princess no matter what.

For every world that exist thousands of possibilities of little changes that can create a new one in its place. It's a scary thought that can keep me up at night. Since in my nightmares, I can see those possibilities. That for every dark story theirs a brighter ending to be made is what keeps me going. That as long you are determined and willing move forward you are sure to make it

Sometimes, those who FIGHT must cast aside their battleclaws. Follow the story of Undertale through the eyes of Ginger Wingren, a young Barn Owl who ends up trapped within a human's pelt beneath Mount Ebott. As she adapts to her featherless form and new environment, she learns about monster history, interacts with the locals, and most of all, uncovers the hidden strengths of MERCY.

This is an Undertale AU, so the events take place in another universe. This takes place 1'000 years after Genocide. The monsters are stronger than before.

A collection of tales involving the many errors of the Multiverse and their abominations (children).

When you really mess up and hurt a family member by mistake

Frisk grew up in a home with neglectful, drug using parents. With a little sister to take care of, she takes a job getting a rare flower specimen from Mt. Ebott, only to fall into the Underground. With the help of a mysterious ghost girl named Chara only she can see and hear, she tries to get home to her sister, facing danger, but also making new friends along the way. Good!Chara.

They have known each other for a long time. They fought often, they each lost and won an equal amount of times. It was a routine of theirs. Destroying Alternate Universe, fixing them, destroy, fix, again and again. There seems to be no stop. No one would dare get in their way, no one dared to help nor did any others tried to reason with them. And this story is no exceptions...

You know, I've been thinking about you and me / Was this preordained? Was this meant to be? / Somewhere deep down, I thought that you could change / Let's cut to the chase… Matt from Wii Sports gonna punch you in the face! (Or, Sans brought company.) [Multi-Crossover, Based off MOTI's Wrongalovania, One-Shot]

Days in Underfell were as gloomy and miserable as ever till Sans got a surprise visit from a skeleton in blue. hijinks ensue as Sans now dubbed red must look back into his past to help get this lazy blue skeleton home

A change in destiny brings about a fitting punishment. Or: Ink and the residents of the Multiverse concoct a plan to be rid of Error. Forever. However, the destroyer quickly catches wind of this 'plan' and devises one of his own... The Multiverse will never be the same again. Inspired by 'Healing What Has Been Broken' by Harrish6.

Made by Q, an AU of Undertale which contains some of his OC's