Undertale
200 stories
Given An Unwanted Second Chance by UndertaleFanatic981
UndertaleFanatic981
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(TW: unaliving thoughts and memories at the beginning. It gets better over time, don't worry! Trauma is difficult to overcome...) You didn't want a second chance. You didn't want to survive. You wanted the sweet release of death. But it seemed like the universe was far too cruel to allow you even that. It took away your memories, your free will to choose whether you live or die...hell, it took the one thing in life you owned! Your own name! And now it seemed like you had to live yet another cruel life, doing things you never wanted done to others. But...at least you could do things your way. Maybe this second chance wouldn't be so bad... (Reincarnated as Nightmare Sans, but unlike other stories, you have no clue what Undertale even is) (WE REACHED NUMBER 1 IN THE UNDERTALE TAG YOOOOOOOO) (9/13/25)
Another Chance (Reborn as a Sans From Naturetale) by ZenInPeace
ZenInPeace
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"Please just... leave me alone..." Maybe that was the last straw for me, the last beating I could take before it finally kicked me off the edge. The last of anything I could handle. I've had enough of this. There was nothing I could want, nothing I held on to, no one to stop me for what I will do. So, why do my 'eyes' still open to a ceiling, rather an unfamiliar one? --------------------------------------------------------------------------------------------------------------------- Warning: Suicide, self-harm, rough language, etc. If these topics are sensitive for you, please read at your discretion. --------------------------------------------------------------------------------------------------------------------- Wholesomeness inspired by: @DeadEnDead Using Naturetale as the base character inspired by: @KarmaAkabane425 --------------------------------------------------------------------------------------------------------------------- Obviously, Undertale and the AUs do not belong to me neither do any music or pictures that may be used. The only thing I'd claim is the changes in design of the OC I've created. Basically my version of the Sans from Naturetale. I have decided to name this AU Barrentale due to the undergrowth dying out and the majority of the monsters being related to more fibrous or woody plants.
Y/N the Creator (Alphatale Fanfic) by DynamicCiocea
DynamicCiocea
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An Undertale fan gets reincarnated into the Alphatale Multiverse. Will they use the knowledge gathered from their first life to their advantage? Or will they perish, fighting against the Gods of Alphatale? The writing in the first chapters is pretty bad, but it gets better. Reader x SS!Chara in the later chapters. This is my first book and English isn't my Mother Language, but I'll try my best. This story takes place in the Alphatale Multiverse. It is not the same as the original Multiverse, so some things may be different. Published: 12 August 2023 Completed: 20 January 2024 I do not own any pictures shown in this book. The cover image is from productionsoxy on Aminoapps. ---------------- #1 in reincarnated out of 1000+ (2 September 2023) #1 in cross out of 1000+ (8 September 2023) #1 in error out of 1000+ (29 September 2023) #1 in errorsans out of 1000+ (1 April 2024) #1 in ink out of 1000+ (7 November 2023) #2 in multiverse out of 1000+ (12 September 2023) #2 in dust out of 1000+ (1 April 2024) #3 in sansaus out of 1000+ (28 September 2023) #5 in undertale out of 1000+ (26 September 2023) #5 in infected out of 1000+ (17 November 2023) #5 in sans out of 1000+ (9 November 2023) #6 in undertaleaus out of 1000+ (29 September 2023) #9 in sansau out of 1000+ (12 October 2023) #26 in reborn out of 1000+ (9 October 2023) #29 in nightmare out of 1000+ (17 November 2023) #101 in dream out of 1000+ (17 November 2023) #1 in 404 out of 205 (25 August 2023) #1 in alphatale out of 93 (10 September 2023) #1 in diety out of 145 (19 September 2023) #1 in kingmultiverse out of 25 (22 September 2023) #1 in alphasans out of 19 (17 November 2023) #1 in error404 out of 166 (27 December 2023) #2 in omnipotent out of 202 (9 October 2023) #2 in epicsans out of 124 (17 November 2023)
Big Sister Undyne by Moonstone_Ccino
Moonstone_Ccino
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Underfell is a dark world with the major rule of kill or be killed. Even though children are suppose to be secluded from this rule, that doesn't stop monsters from hurting children. Undyne is a monster who lives in Waterfall. Under the care of Gerson. One day while out on a walk the fish monster stumbles across a baby. Though it wasn't any monster. It was a small little baby skeleton. (the cover is only temporary, until I'm able to make a cover for the story)
"After death", [Reincarnated As Dream Sans] by 123DarlingHeaven
123DarlingHeaven
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Y/N barely make by their monthly payment to pay rent. sharing a decent enough apartment with a rude roommate who's supposedly pay half but is broke and jobless, Working tirelessly to death. y/n had no choice but to deal with the heavy weight until their roommate gets a job, Y/N hadn't expected the worse yet to happen. { Just so you know, I'm only writing for fun I don't take my books seriously. And if you aren't a fun of that and want a good book, I recommend to skip this. Unless if your curious enough to read it. Also, update may not be frequent since I'm suffering from writer block and sometimes don't have any motivation, It's either that or I'm busy with school or reading other book's} This book contains : -bad grammar (english isn't my first language) -Angst -Swearing (Sometimes) -bullying (No shit it's dreamtale we talking bout) (I'll add more in the future for now that's all you should know about)
Ashes to Ashes by _PizzaPaper_
_PizzaPaper_
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Cold. Everything was cold. And dark. I was so alone... how could I have wanted this? This couldn't possibly be better than before... the warmth, and the light, and the smiles, however scarce. I cried out. I screamed, but it was muffled. I wanted it back. I wanted everything back. I regretted my decisions, my plans, my dreams. I wanted a second chance. **Reborn as a ??? Sans**
Cream Amor Por Toda  La Vida[terminada T1] by LaGatitaAni
LaGatitaAni
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advertencia:si no conoces undertale o x-tale o underverse fuera de aqui >:( Dream: en verdad al principio crei q lo hacian los amigos Cross:d-dream... Dream:entonces este sentimiento se le llama estar enamorado?*tomandolo de la mano* Cross:s-si,solo espero q nightmare no nos descubra q estamos en havertale*agarra su mano* bueno ya vieron un poco,esta es mi primera historia a si q si me equivoco mi culpa +9
My Wish by AqilahDaWinterWolf
AqilahDaWinterWolf
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Dream, the Guardian of Positive who has been suffering by an unknown illness. He doesn't know how many time left, but he could at least wish the thing that he always wanted to be. His wish was to become a snowflake. Based story on The Snow Queen & Frost Witch And The lantern In The Snow
San au's fall for fresh sans!?  by KarmaAkabane425
KarmaAkabane425
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What if something happened to everyone except About three and it made their emotions more..entense and made them like yanderes? What if the one of the three that wasn't effected was fresh sans because he was a parasite except his parasite is different and protects its host? Now add on to the fact that fresh was also now trying to keep the balance of good and evil with a game of tag. Then add the fact that fresh doesn't really feel to much of the emotions but can still feel them but still adds his logic into that. Then add the fact the only other person thats not effected is error the god of destruction who now hides in his anti-void and now only fresh visits error to talk to the only other person not effected but whatever that messed with either of their friends that made them like yanderes. Along with geno in his safe screen? (It's probably all going to be different. This was inspired by a story called foreververse in ao3 for undertale. Its very interesting so you should go check it out. mines going to be different then theirs but a bit similar with the game of tag. There's only two chapters so I'm not sure how it's going to go exactly so mine might end up too similar or very different. Idk I'll do my best though. But that story is very unique since I haven't seen anything like it. They are many unique stories that I've found and haven't found. That story made me think and made me want to do this so here it is.
Reborn as fellswap san and now I'm kinda blind!? by KarmaAkabane425
KarmaAkabane425
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What if..someone from our world was reborn as fellswap sans? But an accident when he was young leads to becoming blind for a long time and papyrus feels guilty about not protecting them enough. Now they just act like they are the boss of their older sibling in public but behind the doors lays a mostly happy family just hugging and all that stuff... (Different personalities because I suck at unknown Personalities that I don't really know much besides fan fiction and undertale comics) also things will be different on the multiverse or au's like ages and such and the names or a certain au or whatever I'm not good at it