Undercross-over - HeroLepacifist - Wattpad

Story cover for Undercross-over by KinzPacifist

Undercross-over

Reads 148
Votes 5
Parts 6
Time 23m

Reads 148
Votes 5
Parts 6
Time 23m

Mature

action battle chara drama error frisk gaster geneocide grillby megalovania pacifist romance sans swearing timelines undertale

Sans bumps into his other dimensional self, physically not a choice, he learns there are others that are like him but in different forms of personality. This Sans called himself Error, a glitch in the undertale universe. Shocked Sans tries to figure out why the dimensional are splitting apart by Error's theory. But he also didn't know that the others were put at risk as well. What is this mystery that Sans is trying to find? What will he drag himself into
(Credit to Toby fox)All Rights Reserved

action battle chara drama error frisk gaster geneocide grillby megalovania pacifist romance sans swearing timelines undertale

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6 parts

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Undertale - A Second Chance by AlpineSettler

In an alternate reality, only one boy fell into the Underground. Adopted by the Dreemurrs, life was good. Until another child fell and everything changed. Ray and Asriel are now alone, without a family, without a world to call their own until they are teleported to another timeline: the Post-Pacifist time-line, where Frisk has led Monsters to the Surface into peace and prosperity for years. However, not all is well. Some Humans don't get along with the Monsters, and things only get worse when Sans reveals that a terrible evil is at work in Earth, sabotaging both Humanity and Monsterkind. Earth will be thrust into either unparalleled peace or all-encompassing war. Regardless of what happens, one thing is clear:The Ancient Days have returned and a New Age is coming. Cover Art by AshleyArtz

Darkness' Eternal Bride (Gaster x Reader) by xsfolia

WARNING: THIS CONTAINS HIGHLY MATURE CONTENT (BLOOD, VIOLENCE) READ AT YOUR OWN RISK Money can change a lot of things. It can even change your destiny. Plunge yourself into a life of romance, science, disappearance and misunderstanding. ________________ "When you get better, I'd like to kiss you" ... Gaster only wanted to conduct an experiment. He surely didn't want his life to be taken over by weird feelings. He also wanted the only thing he couldn't really have. He wanted you. What will he obtain? Will his research finally be completed? Or will he have to start another one? As for you, will you be able to move on from the past? Words count: 81.390 Also contains mentions of nsfw [Rankings: #1 in #gaster (08/21/2022), #5 in #xreader (08/21/2022)]

Undertale Scenarios by InWolfsClothing

A series of semi-realistic scenarios including a handful of Undertale characters. In otherwords, stick around. ... Please.

An Illness ~ A GasterBlaster Sans Story by JoymerLeMessiah

Sans is struggling with an unexpected, and incomprehensible...illness. With the help of Papyrus and other friends Sans will surely make it out of this conundrum... right? ~Characters belong to: Toby Fox/creators of Undertale ~Any and all character thoughts/descriptions/etc. are from me -cover original image: https://img00.deviantart.net/8d12/i/2015/329/1/c/it_s_okay__you_can_cry_now_by_lemonsandlemonade7-d9i1gq9.jpg

Changing The Game by Starlessz

One month before Frisk falls into the Underground a different human falls, someone that is not from this world, but from ours, and now they have the power to change the world as they please. What will they do, will they do the genocide route and become a megalomaniac? Nope, they want to be everyone's friend and get their version of a perfect ending.

The only problem is... by our_bitter_wasteland

Can someone be forgiven? Do people really change? Chara knows that nobody will forget what they have done but maybe they can prove that they have changed. Join Frisk, Asriel, Chara and many others in their adventures of determination and betrayal! (Originally on quotev) (quotev username: XXXcharadreemurXXX)

De-Termination: Chara X male reader (Completed) by Xuatiel

Sometimes timelines can have storage 'anomalies', albeit a very low chance, but it is possible! The anomalies can do many things, such as allowing certain things to be changed and in this case, allowing another human to fall soon after the seventh. But who is this human? Well, that human is you! If you are reading this on any other platform than Wattpad you are very likely to be at risk of a malware attack. If you wish to read this story in it's original, safe form, please go to https://www.wattpad.com/user/Xuatiel

Daybreak [ Error!Sans x Reader ] by morrow-

Gone. In a single moment, in the blink of an eye, everything you have ever known or cared for is eradicated. Hopes and dreams, traditions and stories that date back centuries have been erased without thought or care. Nothing matters and no one will ever live again to pass on the memories and stories of what was lost. Except you. You are the anomaly, the glitch that survived when all else could not. When your universe was destroyed, you found yourself stranded, alone, afraid in a white world without end. But there's little time to rest when you discover that your universe was merely a grain of sand on a much bigger ocean. Whole other worlds thrive in different plains of existence, and they're all going to war. In a desperate power-struggle for the upper hand, you find yourself an unlikely ally. The future seems certain, chaos will win and the universe will be plunged forever into violence and bloodshed. And it will take a lot more than a miracle to win.

[HIATUS] Don't Forget [Sans x Female Reader] by GabrielXander

You would think that with how shit your luck is, you would've been dead day one since falling into the Underground filled with scary monsters and a few spooky skeletons. However, much to your surprise, that did not happen (yet). You know how you ended up here, but you don't know... HOW. You're actually in the GAME Undertale now. And to make matters worse, there are some people who KNOW. You're surviving the best you can, but things are only going to get weirder from here on out. Gaster apparently needs your help? You're using the DJ to go to different AU's? You are gay now?- Okay, maybe that last one is just a joke, but still! You can only hope that your instincts are enough to keep you alive in these trenches. On God, they tryin' to drown you in this hoe! {Available on Patreon, Quotev, and Ao3 under GabrielXander}

CodeTale English by resadovski

In an unfinished universe, the only being, Code Gaster, wishes to create a happy universe for himself, but some things do not go as planned.

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Slide 1 of 10

Undertale - A Second Chance cover

Darkness' Eternal Bride (Gaster x Reader) cover

Undertale Scenarios cover

An Illness ~ A GasterBlaster Sans Story cover

Changing The Game cover

The only problem is... cover

De-Termination: Chara X male reader (Completed) cover

Daybreak [ Error!Sans x Reader ] cover

[HIATUS] Don't Forget [Sans x Female Reader] cover

CodeTale English cover

Undertale - A Second Chance

In an alternate reality, only one boy fell into the Underground. Adopted by the Dreemurrs, life was good. Until another child fell and everything changed. Ray and Asriel are now alone, without a family, without a world to call their own until they are teleported to another timeline: the Post-Pacifist time-line, where Frisk has led Monsters to the Surface into peace and prosperity for years. However, not all is well. Some Humans don't get along with the Monsters, and things only get worse when Sans reveals that a terrible evil is at work in Earth, sabotaging both Humanity and Monsterkind. Earth will be thrust into either unparalleled peace or all-encompassing war. Regardless of what happens, one thing is clear:The Ancient Days have returned and a New Age is coming. Cover Art by AshleyArtz