Frisk is hanging out with their family when they accidentally fall through the fabric of the universe and end up somewhere else completely. ...Whoops? Well, at least Azzy's there too. Bittybones!AU! Platonic relationships! Azzy and Frisk are siblings!

Human magic before the Barrier was achieved through the Cooperative Connection, a bond wherein a monster gifts his or her memories, and thus a part of their soul, to a human. Discovered when Queen Toriel gifted a blind prince a blanket which she weaved in her memories of describing the starry sky far above her castle in the Monster Capital.

After the great Reset, a metanarrative change so violent that it tore the universe apart and recreated it into a completely different narrative. All the old characters find themselves in different situations that tempt to disaster. At every moment, an enemy seeking something, an impossible enemy, and the metanarrative threat itself lurk. Time is their enemy, as past events occur an

Long ago, Gaster fell into his own creation and his essence was shattered through space and time, forgotten by the universe. Some time later... he came back. A standalone prequel story to the longfic The Royal Hunt. Can be read solo.

An Undertale AU, where the Multiverse have created a creature that goes against nature. Read it to know what will happen. (My first story ngl)

After giving up his Soul, Frisk and Chara develops a partnership with each other. Before completing their sixth Genocide run, Chara tells Frisk that she grows tired of doing the same thing over again. After sparing Sans, he warns the two that if they gain a single point of EXP, there'd be hell to pay. Can the two do a successful Pacifist run, or will they go back to their old ways?

Spicyhoney / Bloodorange Fellcest or fontcest and Honeymustard. After catching his brother with US Paps UF Sans decides to act out a plan in order to show them that he knows and that he wants them all to be together as one group. Instead of Us Paps and UF Paps hiding their relationship. Will the two accept and be okay with all being together as a threesome? How steamy will it get?

After the Great Human-Monster War, Prince Asgore's Father, King Vailor is dead. Emotionally broken through the loss, the War and the relocation into Mt. Ebott, he is not much of a leader. But then Undyne steps forth, and shows everyone how to survive hopelessness.

What would you rather see? A skeleton and a human talking about magic? A king thinking over his decision on if he should let humans live underground? A flower who's hellbent on killing everyone and everything? Or perhaps a young aspiring guard working their patrols diligently. The side stories of their lives, chosen by our readers, reside here. Sequel to Two Worlds, Two Souls.

Après une route génocide, Flowey survie juste le temps de s'assurer le reset. Sans, ramené des ténèbres a gardé en mémoire la route précédente et décide donc de protéger son petit frère et les personnes qu'il aime de toutes menaces humaines. Mais y arrivera-t-il avec un nouvel étrange enfant dans les son sillage ? Et puis... Pourquoi cette enfant l'appelle "Gaster"!

Flowey thought everything was going to go right when he believes Chara came back, but when he had inadvertently summoned a real monster, things will probably go differently than imagined.

Frisk has Reset hundreds of times while searching for an ending that is just out of reach. When a run ends differently than any other, Frisk sees a chance to find the ending they truly desire and fulfill a promise they made long ago.

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.)

Two essences in one body, it was never meant to last. Two weeks after monsters' freedom, the unlikely cohabitation between Frisk and Chara within one body starts breaking down. Frisk's body pays the price while both of their consciousnesses slowly start blending together. As they become a kind of human amalgamate, the two begin losing themselves more and more with each passing day.

Frisk had been pushed into a corner, he was blinded and was chased for a long time, it wasn't supposed to be like this! he was a prodigy that this Era of war needed. Alas, jealousy had killed one of humanity's hopes, Or has it?

"El jugador" ha muerto... Y ahora todos quieren JUGAR. En la peligrosa Ebott City, radica una constante inconformidad por habitar monstruos y humanos en un mismo lugar., desatándose conflictos delictivos que atentan con la vida de los habitantes. Sin importarle las advertencias de su madre, Frisk decide ir a la ciudad y tener su florería junto con su compañero y mejor amigo Flowey

The End of the first arc is upon us!

DIRECT SEQUEL TO "PATCHWORK SOUL" — A few months later. A family of monsters and their little human kid try to start life anew beyond the confines of a giant mountain. Maybe they find something. Maybe they lose something. Time flows ever onwards, but sometimes it goes sideways, and it's heavier than they thought.

(This is a remake of the original What if) Down into the dark, Chara fell. Down into the dark, an experiment was run. What if she got to go home? But what if it wasn't to the world as she knew it? What if she was placed into another, at another time? What if that happened to be a version of Underfell?

This is an AU of Glitchtale, by Camila Cuevas. Enter the world of HopeTale as three monsters escape the grasp of the humans before the barrier is installed, and meet friends in strange places. For one of them, our main heroine, shall save them all with the power of the heavens and HOPE. The AUs shown in this AU aren't mine, but the AUs of my AU are.

Frisk falls in the underground at a time where Asriel and Chara are still alive and is first found in the ruins by the latter. Frisk being a human, Chara considers them as a threat to monsterkind, especially once they discover Frisk has the ability to go back in time and erase the consequences of their actions. Can Frisk show to Chara that not all humans are as bad as they think ?

An undertale AU where humans have stolen monsters' magic to power their machines, flowey also known as project FLWY, has tried to fit into a role he wasn't built for his entire life, will him meeting hen help him learn his true role?

It's Halloween in the Underground! Tricks, treats, screams, and magic fill the air, but for one human, he's feeling a bit left out. Lacking magic powers of his own to trick his friends, Frisk is in an odd position. Perhaps a spooky little DJ can help him out and give him the best scary night of his life! Cover by VulpesMyu on Twitter!

The world of Avithan can be dangerous. Sinister figures roam the streets of Killmere-on-Sea, and the wildlands beyond hold treacherous secrets of their own. But for four brave adventurers, willing to face danger head-on for the chance to find mysterious, powerful artifacts, the world offers limitless opportunities! In retrospect, there probably should have been some limits.

For Monsterkind, the Surface represented freedom. For Frisk, it's a return to some uncomfortable realities. It all began with a simple wish. When that wish faded, Frisk tried to move on. Except, 'moving on' was not so simple. Emerging from the Underground had put them in a worldwide spotlight. From an unknown child, they had become an icon of great value.