Undertale/Deltarune/Sans AUs
149 stories
It's Just a Nightmare by R3myR3ad3r
R3myR3ad3r
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You're reborn as Nightmare. I mean, being struck by lightning on a stormy day while on the roof of a building isn't exactly ideal, but whatever. -Notes- Goofy cover done by me :3 Personally, I hate it, but I'll keep it until I can make something better lol I need to stop making more stories and focus on one-- 😭 I DO NOT OWN ANY AUS OR UNDERTALE IN THIS STORY!!!!! ~Fears~ Acrophobia (fear of heights) Keraunophobia (fear of lightning) Ombrophobia (fear of rain) Aquaphobia (fear of water) WOW. It's been a year. Gad you guys are liking this lol
The Silent Destroyer by fublle
fublle
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cover art isn't mine and belongs to its rightful owner Error is finally ready to give in. The multiverse he spent so many eons protecting and keeping the balance is rebelling against him. The AUs he has spent so long protecting are rebelling and are soon to be destroyed, but worst of all, all of the Sanses hate him for some reason. And I mean ALL. Why should he continue? There's nothing to live for anymore. Not even his family can help with this. Or, the people he thought to be his family.
tentacles X nightmare (smut) by 1ce_cr3am_s4ndwich
1ce_cr3am_s4ndwich
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A surprisingly wholesome story? But obviously super kinky sex a lot but it's still sweet.
Home (bad sanses x child reader) by catsinboxes17
catsinboxes17
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You were an average kid, somewhat having a older mind than most of your classmates. you had always been into the undertale fandom, and even knew almost everything about the aus and soul colors. while what seemed like a normal day at school quickly turned around after a huge bang struck the class room next door. in this story y/n is nonbinary and 12-16 years old. But more interpreted as 14 I post a new chapter every 3 day and 5 days at the maximum. WARNING: this story will mention some forms of slight emotional harm. And Sexual abuse. Readers be safe. Please if you are in any danger, contact someone. You are not alone. With that aside enjoy the story . This story is finished as of September 1 2022, I encourage you to read my other story "Our Disturbing Love" And in the next month or couple weeks I plan on creating another bad sanses x reader.
Sanscest OneShots by LemonBery
LemonBery
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This is INCREDIBLY OLD!! Please, severely lower your expectations. Requests closed. Don't expect any more updates. Apologies to those whom's I didn't finish. The art is mine DO NOT READ IF YOU ARE SENSITIVE TO ANY OF THE FOLLOWING: Suicide Self harm Swearing Violence Manipulation Torture Murder Panic attacks Blood Gore Rape/Sexual harassment, assault Tag achievements: #78 in depressing #20 in owo #695 in sadness #441 in happiness #928 in happy #427 in undertale #112 in uwu #178 in sin #60 in sanscest #1 in sanscestoneshots 12/26/19 #404 in depressing 5/22/20 lol an error has occurred.
The Sanses On Crack by White_Bred
White_Bred
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It's in the title. .... Have you ever realized that 'title' is only a couple letters off from being 'tittie' so- *gets hit with my grandmother's coffin* AGAIN!? Okay, anyways... This is already crack, isn't it? Ya know what? This is a good enough description. We also do dares and asks... sometimes. So don't get mad if you do an ask or a dare and I don't put it in the story. So ye. That's about it. *dodges grandmother's coffin as it flies towards my face again* WHO THE FUCK KEEPS THROWING THAT THI-
Sanscest one-shots {requests closed} by idkTbh1273
idkTbh1273
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Uhhhhhhh- Hellloooo ! You know what this is boys ( ͡° ͜ʖ ͡°)
various x pregnant reader oneshots by THEQUEENCOOKIE
THEQUEENCOOKIE
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The other day I listened to a Bakugou x Listener, you both had a child. So I looked up a fanfic, And there was NONE!!! So I'm making a oneshot!
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Nightmare's Nightmare by slendermanishot
slendermanishot
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"I can't wake up. what the hell is this dream?..." said by nightmare, panicking. Sarangahae.
If You Tried (Undertale X Hazbin Hotel) by SpiritWolfNura
SpiritWolfNura
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Good news: Frisk stopped resetting! Bad news: The monsters were dead. Every last one of them, dusted. With no determination to speak of, they can't presist after death, they just cease to exist altogether. Well, almost all of them. What happens if a certain Skeleton winds up in Hell for the constant murder of the genocidal toddler? Could Charlie's Happy Hotel redeem his soul and send him to a better place, or does the Radio Demon have plans for everyone's favorite Judge?