Undertale AUs
7 stories
Broken [Sans Aus x Reader] by itslazyline
itslazyline
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[ Sans AUs x Reader ] This wasn't what you expected - this isn't what you wanted. You wanted to rest, to finally, finally breathe, relax. But apparently life had other plans for your sleep deprived self. It wanted to trap you, it wanted to make you see - to make you realize, you're life isn't what it seems to be. You didn't want to take part in this chase - in this game. This isn't what you wanted. But this is what you needed. And some skeletons are here to join you for the wacky ride. I do not own Undertale, Toby fox does. I do not own any AU's in this story unless stated otherwise. I only own the plot of story.
SAFE Home (Sans AU's X Reader X Papyrus AU's) by EmelinStriker
EmelinStriker
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Sans AU's X Reader X Papyrus AU's (Girls only!) (FASTER UPDATES ARE ON QUOTEV!) (#ShoeTheTape) You were a quiet, anti-social girl with a big house you've got from your parents. (F/N) was your best friend, he's a crazy, creepy, mysterious, suspicious guy, yet he still was your friend, even after he broke your window and door... TWICE. However, one day he asked you a question which would change your dull life forever. Many skeletons surely change your life routine. *You're filled with SAFETY
Villainous pursuit - Yandere AU Sans x Reader x Yandere AU Papyrus by Mallory_Abi_Moriarty
Mallory_Abi_Moriarty
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Who thought that one day someone would break into your house and slice your neck in your sleep? Well, that was what happened, right before you were integrated into a shitty yandere dating sim. The catch? You are the Villain who dies before even the prologue finishes. With the determination to live and stupid bravery, you decided to pave your path into surviving, not realizing that instead of paving a path into survival, you paved a path into the souls and hearts of the insane characters of 'Yours to keep'.
Fairytale Complex - [Undertale | Sans x Reader] by james_trmtx
james_trmtx
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[Frisk's Parent Reader | Slow Burn] The dichotomy between black and white is your constant when it's time for you to meet the whole new civilization Frisk brought along with them to the Surface. As a parent, it's not easy to trust others when they've hurt your child. So when that new civilization decides they owe Frisk both for saving their kind and for still hurting them during that process, you've got plenty to say to them. Forgive the monsters as easily as you once did with others during a stage of naivety? Oh, hell no. They better have a good reason for hurting your child and an even better one for wanting to be a part of their family. [Cover Image Credit: 愚木混株CDD20 and scarfacino on Pixabay.] • • • Full Arc List: Arc 1 | Ruins Chapters 1 to 15 (✓ complete) Arc 2 | Enemy Approaching Chapters 16 to 25 (✓ complete) Arc 3 | Pathetic House Chapters 26 to 30 (× current) Arc 4 | Spear of Justice Chapters 31 to 40 Arc 5 | Here We Are Chapters 41 to 50 Arc 5.5/Final Arc | Good Night Chapters 51 to 55
My Anomaly (An Error Sans X Reader)  by nightmare597
nightmare597
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When your sibling Chara goes missing you fear the worst, but life takes a surprising turn for the better when they release the monsters trapped underground. Living this new life in your home AU of Underswap things couldn't be better. That is until a certain skeleton appears and threatens to tear apart your Au. Not wanting to loose Chara again or risk the loss of your new family you fear for the worst and attempt to strike a deal with this new monster. Your soul, in exchange for your entire Au to be spared. But what happens when this monster who steals you away can't take your soul in the end? What happens when he feels these new emotions he's never felt before? Confused and complicated emotions turn this situation into an even stranger one. And the more time seems to pass the more you realize, maybe he isn't so bad after all. But time is running short and it's up to you to find a way back to your Au before the timer runs out and you become like him. But can you do it in the end? (This is an Error X Female reader slow burn, I repeat slow burn. Cover art is my own! Some themes to this may be heavy to some readers so please proceed with caution! If you'd like this more gender neutral please let me know and I'll be happy to fix it! Enjoy!)
Swapped Over by ItsSwapPapyrus
ItsSwapPapyrus
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Having little to no memories on what happens, you wake up to find two skeleton brothers who look awfully similar to yours. Confused and slightly disoriented, you later discover that you had been dragged out of your universe and into one that looks the same, except everything is Swapped Over. *Updated Description Average word count: 2000 to 3000. published: July 10, 2019.
Little Miss Informant (Mafia Sans x Reader) by ReapingZen
ReapingZen
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PLEASE READ BEFORE GETTING INTO THE STORY. Monsters are finally above ground, on the surface where their Human friend Frisk led them. They wanted to see the stars, take in the world and break free from their prison... but unfortunately, integrating them into society didn't go as planned. When thrown into a word of deceit and lies, where money became respect and power... Monster kind chose the Mafia life over the hatred. Trying to make it to the top was starting to feel impossible- until a new opportunity emerged. With the help of a mysterious informant, they may just have a shot at becoming the most powerful Mob in the country. Though when a much larger scheme starts to reveal itself, coming to terms with the truth might be a little harder than expected. But that doesn't really bother you, right? Because you're just the informant. So as usual, a little bit of a quick note. This story happens to be rated mature, which means that you might read some things that you are not entirely comfortable with! I will also be releasing a big story for Blue x Reader once I am about half way through this story. I needed more time to finish the plotline for that one, since it is so unique that I had to wrap my head around it a bit more. Anyway, like in all of my stories- the cover DOES belong to me. So please do not steal it, etc. Mobtale belongs to its original owner, your character belongs to me. Hehe. And I did come up with this plot so- yeah. Remember these important keys when it comes to reading the story! (Y/n): Your name (E/c): Eye color (H/l): Hair Length (H/c): Hair color (S/c): Skin color (F/c): Favorite color