THE END AND BEGINNING ARE ONE POINT IN DARKNESS. It Was The End. It was The Beginning. Every World is collapsing, and one is the Support. Holding every timeline, every consequence, UNDERTALE's World is in for a rude awakening. The Three Heroes set out to find the root cause of this mess, with one clue, "Banish the ANGEL'S HEAVEN." But in the end... Do their Choices Really Matter?

In a scrambled timeline, Frisk has carved a dusty trail through the underground countless times, and a scattered scientist has had enough. He gambles on pulling a human from beyond his reality to try and finally stop Frisk. He's hedged his bets on...this sleepy-lookin' girl lugging around a bootleg sword to go fight a squinty kid in her pajamas. This timeline's doomed.

After the death of the sixth human, Toriel makes a desperate request: seal the entrance to the Underground. Sans reluctantly agrees, but stopping Frisk's arrival sends the system into chaos, and the soul of Determination finds a new host—Sans himself. Now burdened with immense power, a destruction-hungry phantom, and an unquenchable thirst for Determination, how will Sans navigate

Eran las primeras vacaciones que se tomaba. Sans pensó que serian relativamente tranquilas, claro, si se ignoraba los gritos de su hermano, Papyrus, y el enamoramiento de este con Frisk; la molesta y deportista Undyne, intentando que se levantase del sofá y moviese el esqueleto; además de la familia Dreemurr, conocia a Toriel, pero sus hijos eran otra cosa. [Chara x Sans] Resubido

At the end of the war, monsters don't have the choice : they have to join Mont Ebott for survive another day. Sans and Papyrus, forced to run away after the attack of their village, are delivered to the horror of the war without any help and this one objective. But as sons of the royal scientist, W.D Gaster, they are an easy target. Both of them start a dangerous journey.

There are thousands of legends about the Underground, most of them telling the story of the human who managed to break through the barrier and free the monsters. On this occasion, it is time to go back in time, a story that is thought to be abandoned in the face of existence, one where we are presented with a new name, a new soul, a new identity, but the same righteous ideal. Is t

After Chara is freed from the Void, reunited with her friend, Gaster, and gone through a Reset of time, she must now help guide young Frisk through the Underground, showing her how to get through without harming anyone. (Female Adult Chara, Female Frisk)

Asriel didn't deserve this. To be back, to be nearly himself again, to be able to feel. But it was only because of the souls inside him. When he was about to release them, a voice made him question everything. The human children who died because of the fury he had caused wanted to live. He would right that wrong, no matter what. But bringing them back wasn't as simple as he thought

Littleverse: a multiverse in which most, if not all, of the main characters are children. Small children. Some of which have never had parents to guide them. FMD Ink: a psychopath. What will happen when these two forces meet? Well..a lot of adoption, fluff, and angst, apparently. We do not know how this happened. Go check out Clichély on AO3 and Wattpad!

A human who was once tainted with hatred and distaste for monsters has started to see the wrongness of her actions when she had gone to Aynor Village, the last monster town damned to be liquidated by human hands..

The power to reset the timeline, and the determination to move forward no matter what the cost. These are the two things that keep a young girl moving forward in the mysterious world of the underground. She could be the key to their salvation, but would it all be worth it? Especially if the one person that matters most remains trapped and alone. (I don't own Undertale.)

After getting to the surface countless times Frisk finally decided to tell Sans and Alphys what would inevitably happen, though that's when a desperate plan was suggested. If one soul isn't powerful enough to stop the resets, then maybe three will be. The only question is, how can those three souls meet, and will even that power be enough to stop the endless cycle of resets?

After Toriel mysteriously doesn't return from her vacation to the Spooky island resort one of her friends Undyne receives an invitation to the island and she takes the opportunity to find out what happened, but she finally finds Toriel, Undyne quickly realizes something is definitely wrong.

An overworked human therapist and a posse of monsters hailing from deep underground. Need more be said? THIS IS JUST A TRAILER, UNTIL CONTENT IS SUFFICIENT TO PUBLISH.

The Underground is divided. Evil lurks in the darkness as hope slowly fades away. Only a human, a monster, and a dead prince can restore this corrupt kingdom, but not if it corrupts them first.

Frisk no longer exists. Chara has become the main character. After 1000 years of genocide, something new happens, and Chara is thrown into a whole new underground. Will Chara manage to survive this new environment? Well, let's see how much determination they'll have after exploring the new routes this new game has to offer! Rated T for minor adult themes.

A household full of skeletons are competing over the attentions of one love. This isnt that house though. Unknown to the group secretively wrestling with their unpredictable love lives and universe-meddling machine, another house a few doors down has been gifted with its own skeleton posse clamoring for the attentions of their own little lady. A little old lady by the name of Mabel

The little Sansy is odd, even for a Bitty Monster. He just wanted to escape his terrible reality... Turns out, he had a quirk. A random Bittybones request fic off my tumblr for reblogslol4545. And for anyone else who might enjoy it. Genderless OC called Y/N. -I mean 'Yin'. TW for blood (stains on clothing), some minor swearing, and some unfortunate rats.

Sans is afraid to dance, Papyrus is worried, and frisk want to dance with him at least once. The rest of the family is happy to help.

What if the six fallen humans who died before Frisk never died and instead joined Frisk on their journey through the Underground? It all seems good... aside from Frisk. Why are they really in this timeline? What do they want? Join the other six as they try to learn about 'the eighth human', why everything is so strange and how to escape the underground. [Cringe cover by me] DONE!

Golden Quiche / Crimson Keeper specific universe. A 'Chronographer' is a title reserved for those with the power and authority to observe, manage, and record the annals of spacetime. They're the primary historians of this world.

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.

"… ¿Sabes?… Yo realmente… odio mucho el verano" Dijo ella mientras le miraba con una expresión cansada. Frisk ladeó la cabeza levemente, café y cian encontrándose, inseguro sobre como interpretar sus palabras. Pero, aún así... con todo el dolor y el sufrimiento que sus hermosos ojos ocultaban de él, aún había algo que decir. "¡Pero eso no significa que odie estar contigo, Frisk!"

"You know... I really hate summer" She said while looking at him with a tired expression. Frisk tilted his head slightly, brown and cyan meeting each other, unsure of how to interpret her words. Yet, even so... with all the pain and suffering her beautiful eyes hid from him, there was something left unsaid. "But that doesn't mean I hate being with you, Frisk!"

Toriel and Asriel have a little talk about the Surface.