After failing to destroy his creator, Gaster, Epic Sans finds himself on a journey through the surface world in another Universe. Of course, he carries on with his usual unpredictable antics there as well, befriending a pervert and helping him reach and his friends along the way.

Michael J. Caboose has seen a lot of weird things, but talking flowers that try to kill him isn't one of those things. But, regardless of who tries to kill whom and who blows up who on accident, Caboose will do his best to befriend every cool monster he comes across! Violence and Language included that is not suitable for f**king losers.

(I do not own the cover) Error is thrown into the a new world, one without monsters, but vampires, and shapeshifters instead.

After being given a second chance to start a new life in a different world, you were transported into Hell. Not exactly the best thing ever. What's made worse is that you accidentally fell into the deepest ring of Hell and now you have to go all the way back up. Well, with your determination, anything is possible! What hijinks will ensue and what friends or foes will be made?

After freeing the monsters from the Underground what's next for young Frisk? Well, there's always the world's most popular trading card game Duel Monsters. With a deck based off of her adventures it's time for the monster ambassador to show everyone what she's made of. Though with dark forces around every corner, she'll need to remember one thing, always stay determined.

It's Undertale, but with RWBY characters. The Only Way To Go Is Forward

What if Frisk from Undertale went to the world of One Piece? See what happens as Frisk goes on a new adventure!

What if Frisk went to the world of Fairy Tail?

It was never meant to end this way. The six SOULs should have just drifted off into the abyss after that abomination of a garden plant was defeated. But that stubborn, reckless, idiotic kid decided to stick his nose into things he didn't understand.

Long after the Human-Monster war, the surface fell into a state of total chaos and became an unending nightmare. The eighth human, someone broken and reshaped by that nightmare, is about to enter the Underground, and is bringing far more than a simple stick or dull kitchen knife... Soulsborne Series crossover AU, OC Undead protagonist.

Finally finding an escape from the world of Don't Starve, Wilson finds himself in a world unfamilliar from the one he knew before. He isn't alone, though, Frisk and the monsters he calls his family will be there. Somehow... Wilson P. Higgsbury knows this won't be as easy as keeping himself alive in his old prison.

Asgore finds an old, incomplete painting he did of a man playing the piano.

The X-Event finally makes their moves, as the member of the Unmei Force, as well as those of the Future Seekers, seek to pursue the X-Event, so that they can find X-Gaster, and put an end to his genocidal plans once and for all. However, it seems that their quest will not be without its own problems, and it's only a matter of time until Richard awakens...

Every story has a beginning, and Frisk and Ralsei's childhood friendship is no exception. A collection of oneshots of Frisk and Ralsei's lives together, from when they met at five until they were separated at seven. Set as a prequel to the Hopes, Dreams, And DELTARUNE universe.

Once the monsters and Frisk left the Underground, after the events of the pacifist route they find themselves in Japan next to the small town of Kouh. The group decided they wanted to set up residence in Kouh, Now all they needed to do was greet the locals, Frisk being their ambassador... Turns out they seemed a bit monstrous themselves, well at least some of them.

Frisk Dreemurr is an ordinary eleven year old girl, aside from the fact she freed all monster kind from the underground almost two years ago. But shortly after her eleventh birthday, she discovers something shocking. She's a magical witch and she's been accepted into Hogwarts School of Witchcraft and Wizardry!

Sequel of "The Hope Reborn". Years after Illaster's defeat the Princeton Family seem to do unfinished business with the Anomaly, and Agate who escaped, and are facing a new threat from the Barians, and the Number cards with allies from Astral World, and Yuma Tsukumo. Co-Written with Ulrich362. SharkxOC, RioxOC, YumaxCathy

After the events of Undertale, peace has been brought to the above ground and a new nation is formed. However, a Ebott science project goes wrong, Frisk going missing in the process and ending up in a strange new world. Sans going in to save them, what comes next is filled with slice of life fun and jaw dropping action. [Updates every Sunday]

What if Izuku had a dog called Mighty and didn't save bakugo? What if Chara wasn't some psychopathic demon and got teleported into Izuku's room? Well that happens in this fic. Looking for a better name lol.

La vie de Léa change du tout au tout quand des monstres surgissent de nulle part pour l'attaquer et qu'elle se retrouve contrainte de vivre dans une académie loin des humains.

Legendary Celeste Mountain. Mythical Mount Ebott. The tales of these two ancient places are over. But what about those who came out victorious from their depths? Their stories were far from over. Thanks to a twist of fate, Madeline embarks on an unexpected adventure that shatters the boundaries of her world and intersects with the path of the young ambassador of monsterkind.

After fighting in Chara's genocide run for what seemed like a lifetime now, Sans devised a new plan to get rid of the wraith, in the hopes of giving his brother a happier life. In doing so, there were unintentional side effects and Sans found himself in an entirely new world. Undertale—more specifically, Sans, meet the Marvel Cinematic Universe.

one night Monsoon who's married to sailor Pluto has a nightmare in which the aftermath requires the intervention of both Jack/Raiden & JetStream Sam and thats not even the half of it all...

Monsters are freed from Mt. Ebott by a military group. Many monsters are already free, as Mt. Ebott monsters were freed last for being known as the most dangerous monsters. Can they adjust to a society critical of their merciless killings?

In a twist of fate, Ben Tennyson, the intergalactic hero, is transported from his cosmic battles to an unfamiliar underground w what will he do without friends and allies? Will he be able to stop his old enemies as they unite to defeat him? (only M rating because i thought about adding blood and profanity)