Undertale sanses
121 stories
Wait... I'm Nightmare!? I Thought I Died!? by Donut2460
Donut2460
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(Cover made by me!) (!Updates 1-4 times a month¡) You died by cracking your skull open as you walked out of the shower. Godamnit life!!! To die in the most idiotic way!!! Which was very frustrating until you met a strange entity in the 'in between' that causes you to be reincarnated as Nightmare. Errr... sorta. What happens is that your soul merges with Passive!Nightmare and Corrupted!Nightmare, so they are now your buddies for life but in ghost form. God... kill you now (again), you never knew you were going to sign up for this when you died. ~Started Jan 19st, 2022~ ~Completed May 10th, 2023~ Highest rankings 🏅 #1- Dreamtale out of 1,000+ stories 4/19/22 🏅 #1- Dreamsans out of 1,000+ stories 5/12/22 🏅 #1- Nightmaresans out of 1,000+ stories 5/29/22🏅 #5- Comedy-drama out of 1,000+ stories 9/30/22 #1- Fandom out of 1,000+ stories 10/10/22🏅 #1- Aus out of 1,000+ stories 9/24/22 🏅 #1- Undertaleau out of 1,000+ stories 10/10/22🏅 #1- Reincarnated out of 1,000+ stories 9/30/22 🏅 #2- Guardians out of 1,000+ stories 1/26/25 THANK YOU SOOOO MUCH!!!
I'm a Fan! by miikamiela
miikamiela
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[formerly known as 'I'm Not A Cannibal!'] - Waking up in a strangely familiar place is weird. Realising you've been turned into a skeleton is even weirder. But actually BEING Sans? And not just any Sans, but THIS Sans? Oof, this is gonna be interesting, especially since he doesn't seem to STAY in his AU. - Slight SI-OC!Horror Sans, aka I just threw some of my traits at an unnamed OC, and then threw the OC into Horror's role to see what would happen. - Please note that this story will have ships between skeletons, keeping secret who, and there is something else too, but I don't really want to say what since it would spoil quite a lot of things. (On AO3 it's in the tags tho, so I guess it's been spoiled there already)
I'm a Sans ( au sans x reader x au papyrus ) by KittycatTDH
KittycatTDH
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This isn't a typical sans x reader(now papyrus x reader too). It's got more than that, well at least a different plot device first chapters will be about, just you(but it'll be good, I think so)and it's about you dear reader, you are now reborn as a Sans of a different au, but you don't have time to marvel how you're been reborn as your favorite character, because if you want to live you better focus because unlike frisk you're not coming back a second time when you die. (Short, and I mean short chapter, but this will ensure I can post more -w-) (Edit: this is context of your previous life is that you are originally female, aged 15, you had died during a car accident, you were sleeping in the back of the car, while you had a road trip to visit your family in Canada. The car had driven off the road because of black ice your father did not see in the dark of night. You heard the sound of your fathers scream then lead by your mothers then little brother's scream. You banged your head in the chair in front of you making you pass out, and when you open your eyes you had found yourself be popped out, but you didn't know that at the time. Art always be done by me. Edit: discontinued
Becoming dream from dreamtale  by KarmaAkabane425
KarmaAkabane425
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What if someone from our world became dream on the first day they were made and were determined to not lose their brother to corruption like the original dream did in the story/game/movie? Even if they had to hurt the villagers to keep them away from nightmare they will. They will also protect nightmare, their brother from those who want to hit him. They won't be naive and hopeful like original dream. He would even pretend to be the guardian of negativity. He would rather kill the villagers then let then hurt his brother. Yet he still kinda failed and gets turned into stone but not for the reason one may think because Unknown to him nightmare notices his brother keeps getting hurt and finds out the reason for it was that they think Dream his the guardian to negativity. This end up with dream getting a protective corrupted goop of a brother. Well not what he expected but oh well at least he still has his brother. (Things will be different etc, including personality)
I Y/n became Chara, how will this go? by Tee_bag_0
Tee_bag_0
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Y/n in the body of the hated and feared Chara, how will that go? ■ This book is inspiered by a dream I had and here is a small peek. Y/n takes over Charas dead body after she, herself died only a moment ago. How will she survive and what is her plan. Will she fall in love or become like the real Chara. This book is more to the horror side then the love side. [ Not my characters BUT THIS COVER IS DRAWN BY ME ]
Becoming ink sans from undertale multiverse!? by KarmaAkabane425
KarmaAkabane425
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What if someone from our world died knowing a lot from the undertale and their multiverse/underverse? What if that person also knew about the balance and didn't creat too many aus? Also they dont like creating sad au's like flowerfell or places they end up like dusttale or Horrortale. Yes they did make au's and may have not known what to call them so they took some names that they knew and remembered from the movie/game/their world like horrortale etc. But they also kept a better eye or eye sockets on his au's and their originals.
Reincarnated as nightmare sans from Dreamtale by nelliesheerin
nelliesheerin
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A women who loves children dies and is face to face with the decision to reincarnate as nightmare sans if she allows herself to be Karmas chosen child. 'Fgod error belongs to Harrish6'
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
Reincarnated as Horror Sans by Cosmicstars08
Cosmicstars08
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What happens if Someone from our world was reincarnated as Horror Sans? Would they be able to survive or die trying? Through his entire life? 1/7
Becoming papyrus from underswap  by KarmaAkabane425
KarmaAkabane425
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What if someone became papyrus from underswap? What if they gave their brother more freedom? What if they were the one that error kidnapped instead of sans? (Things will be different including personalities because I never seem to get them completely ALSO the AGES will be DIFFERENT I'm having papyrus as the younger brother idc is sans is the younger brother or not, I'm having papyrus as the younger brother so no complaints And it's a different multiverse maybe everything will probably be different idk yet Also give me ideas if you want me to update this story faster.