The ambassador of Ebott reunites with his best friend to give him his real body back. Soon after, a new malevolent force arises and strikes. All of the hard work the ambassador has done will be destroyed and death and despair will sweep the town- unless he and his brother can figure out a way to thwart the malice creeping through Ebott. They must stay DETERMINED to survive.

Frisk decides to stay with Toriel in the Ruins, despite Flowey's constant nagging. There are ghosts in the halls and skeletons in the basement, but as long as they're with their mom, everything will be alright.

A "shortcut" gone wrong results in Sans and Papyrus swapping bodies. But the greatest scientific breakthroughs often start as accidents—and this might be the key Alphys needs to save Chara and Flowey. (Includes Soriel, Papyton, and Alphyne as ships. Crossposted from AO3)

In the dog days of summer, a happy event sparks a terrible realization in Toriel regarding her immortality and the future consequences it could entail. She knows there is only one way for her to age again, to avoid such a fate. But things are no longer as simple as they were over a century ago. (Soriel, Sequel to All These Broken Pieces)

"Frisk...why did you come here? Everyone knows the legend, right...? Travelers who climb Mt. Ebott are said to disappear." We all know the Undertale, a story where one Determined human changed the lives of every monster in the Underground forever-for better or for worse. Why did Frisk climb that mountain?

Chara and Frisk’s journey through the Underground... With a bit bigger body parts than normal.

Undertale, one of the coolest games around. Simple story, excellent characters, and endless fanfiction potential. But what if it wasn't just a game? What if it could be free of its true and final enemy? The Player.

After falling down a hole in a mountain, Frisk, a young teen, finds herself in a strange land filled with talking animals and creatures of various shapes and sizes, that's ruled by an oppressive monarchy, and Frisk must now find a way out while escaping The Royal Hunt, a violent group of warriors led by the psychotic Mad Mickey. Book 1 of the Shattering AU Warning: graphic violence

Frisk loved Papyrus's hands. Just a fluffy little introspective drabble set in the Papyrisk Chronicles universe, but it can very much be read alone.

Another DoubleKid. But what if his story, while not intertwining with The Hacker and The Anarchist, finally came to light on its own? The era of DoubleTale continues into one of the 21 original stories. Based off of DoubleTale: Rewritten by XWolf26

"Most likely you know the public's story: a tiny human child with an insane amount of DETERMINATION falls into the Underground sealed under Mt. Ebbot, befriends everyone, and then SAVEs the King and Queen's children whom they thought they'd lost a looong time ago. Nice story, right? Well, the REAL story is a lot more complicated, so buckle up. Things are about to get interesting."

Lola Bardales, once Adams, after being released from prison, is trying to turn her life around. But she knows nothing will ever make up for how much she hurt her daughters. She hasn't seen them in almost nine years, but when a trip for baby supplies brings Frisk and her family to the mall Lola works at, Lola finally has the chance to attempt to make things right. But will she?

*What would you do if everything you thought you knew was a lie?* Just when Frisk returns to Sans, the blooming flower has to make a deal with the 'devil' to save her family from a horrible memory and sold her memories. But, as the story begins again and she slowly gathers all her memories back, Frisk had to wonder: Which story is true?

The Fontaine family is hosting a garden party that a great deal of Society is invited to. The popular rumor is that Dr. Gaster is finally marrying off one of his sons. Well, the rumors aren't entirely wrong.

Sharing a body and a mind with someone else isn't always easy, especially when its supposed to be kept a secret. Frisk and Chara are stuck together, probably for life, and now the two of them have to learn to live with one another. A collection of short wholesome stories with Frisk and Ghost!Chara. (Post pacifist ending, both use they/them) This fic takes ideas if you have any !

A long time ago, a human fell Underground and was adopted by the king and queen. All of monsterkind was filled with hope for the future between humans and monsters. Unfortunately, this tale was always meant to be a tragedy.

Cheyenne et sa petite sœur, Neelam, prennent leur indépendance après quinze années passées en famille d'accueil. La plus âgée ne réussissant pas à trouver un travail, Papyrus, leur charmant voisin, lui propose de surveiller son frère, Sans, atteint d'une maladie qui lui fait perdre peu à peu la mémoire. Un travail en apparence facile qui pourrait bien être plus trompeur que prévu.

Almost a year ago, Chara's world was ripped apart. Now, with almost everyone she ever loved gone, the sharp pain has been replaced with an ever-present heartache. Nothing seems to matter anymore. What hope is left?

Mao becomes friends with a popular group of boys who she happens to have crushes on. There's drama of course- Angst, Lemons (mostly), fun, and y'know- fuckboys-

After the RESET button glitches, Frisk and Chara must journey through different time periods to find their own. They must stick together to succeed.

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. All he has to do is break through one wall... (A rewrite of DT.)

Papyrus is a Basketball Player. Chara fights to protect her sister Frisk from bullies. When these two meet, friendship will blossom, but will something more blossom between them? After an accident between Frisk and her old academy bully she and Sans find themselves traversing the Underground together. Why has Sans grown much more powerful Underground? What is Dr. Gaster up to?

This is old and unfinished, purely here for archival purposes

Collage AU. Mettaton and Papyrus meet in the theater club after Papyrus tries to find something to fill his time with after being rejected by the police academy. Meanwhile, Mettaton deals with impostor syndrome and anxiety. Maybe the two found each other at the perfect time? What does Sans have to say about it though? (skeleton brothers are dark-skinned in this AU)

Frisk está harta de lo mismo una y otra vez, por lo que decide hacer lo correcto para salvar a todos. No contaba con la nueva ruta que surgiría ante su decisión.