Six years after the monsters emerged to the surface, Frisk is busy with their life of being their ambassador. After an unexpected tragedy, they're soon battling to not just prevent a civil war, but save every timeline.

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.)

Will contain lemon and the like, M rated. After a wet dream, Cherry Red awakes to find herself in the beginning of Undertale! But this time, all the characters are female! But with a very problematic issue involving her being a hermaphrodite, Cherry needs to get through the Underground in one piece... and hopefully not get killed or get fucked in the process. Keep it in your pants!

An alternate universe where the war never happened monsters and humans live in peace. The world is kept in balance by a select few who die and get resurected as the embodiment of a attribute they showed much of throughout their lifetime. Frisk wakes up one day with no memories other than her name.

[AU Horrortale] Après son combat contre Omega Flowey, Frisk a fui les Souterrains pour aller chercher de l'aide. Malheureusement, les humains ne sont pas aussi compréhensifs que ne le sont les monstres et ils refusent de le croire. Dans les Souterrains, Undyne et Toriel se livrent une guerre de pouvoir pour prendre le trône, aux dépends de leur propre peuple.

op sans

The story right after Undertale.

After thousands of resets, Frisk succeeded in doing what everyone, including Sans, thought impossible: bringing back the lost prince and destroying the loop that was causing them so much suffering. Two years later, now an ambassador, he seeks to restore human-monster relation, while fighting against an evil that seems to be spreading in Ebott and threatening his new family.

With a quick use of Sans' magic, we had returned to our home on the surface. The lovely three-story home sat quietly among the trees under the moonlight. Sans always loved to teleport just outside the door and glance at it before walking in. He was a little less lazy since coming to the surface. So much to learn. So much to do. So much to love. SEQUEL TO "TWO WORLDS, TWO SOULS"

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?

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.

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.

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.

"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

"Long ago, two races ruled over Earth: Humans and Monsters." One race feared for their strong souls, the other for their magic, and the mages caught between them feared for both. All silently knew that war would be inevitable. The only thing that mattered was surviving it. One crimson mage understands that well, and is determined to keep herself and those she cares for alive.

The Riverperson is a very mysterious person in the Underground. Letting Frisk ride in their boat wherever they need it. They are always so carefree, but what if there is more underneath the surface.

In the face of imminent destruction, of complete and total oblivion, what can one do? More than they can think, and less than they can think.

Sans is putting himself through hell - not knowing that there's someone out there who wants to save him. Based on the Dusttale AU.

Another classic smutty take on a world that I love, this time following Frisk on her exciting journey through the underground. Loosely inspired by the comic Under-her-Tail.

Decidido a vivir como desee, un chico cae accidentalmente por el monte Ebbot, sonde obtiene la capacidad de convertirse en fantasma, habilidad que aprovechara al máximo.

[Horrortale AU] After their fight against Omega Flowey, Frisk left the Underground to get help and save their friends. Unfortunately, humans are not as comprehensive as monterkind and they didn't believe them. How to change their mind ? In the Underground, the situation is getting worse. Toriel and Undyne are fighting for the throne, and chaos is taking place in the Kingdom.

[Underfell AU] Undyne is weird, and Papyrus doesn't like it. But by the time he tries to understand why, Undyne gives him the lead of the Royal Guard and disappears from his life. But why? Papyrus investigates, as some people try to dissuade him too. Probably because all the tracks are leading to Asgore, and that if he doesn't give up, he might lose way more than his job.

"My name is Asriel Dreemurr. Six years have passed, and we made it to the Surface. But the world around us is much more dangerous and complex than we initially thought. To reach true reconcilation between Humans and Monsters, we need to help improve the hurt world around us. It will be a difficult struggle for me and my loved ones...but it will all be worth it in the end."

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?