Undertale & Au
85 stories
Wounds Heal, Scars Fade by TheVoidIsMyHome
TheVoidIsMyHome
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The idea I created that spawned this book idea: Story idea: FGOD Book centered around "Wounds Heal, Scars Fade" with some sort of fun naming scheme. The plot is that finally some dumb dumb checks Error's soul, and the truth is revealed. But things aren't so simple. This FGOD Error is hated by everyone and tormented by everyone, so he doesn't have Geno, Fresh, Blue, or the bad Sanses. Cause they all are either hateful, spiteful, or neutral towards him. So as the Sanses try to heal Error's wounds, his scars rear their ugly heads. You can decide if he jumps anyways despite being understood and taken care of, and how many times/how many multiverses he jumps through before finding a place where his scars begin to fade. (This place is up to you, but the only requirement is it has to be reasonably/functionally different from the main world he came from. So all the other Sanses have to look drastically different, or behave differently enough that the looks don't matter.) You are free to harness that idea for yourself if you like, just credit me. (If it is not obvious, this will be an angsty book, and my storyline for Error's journey will be different than yours.)
Torn by p3n_i3
p3n_i3
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[Yandere!Underverse x F!Reader] [Being rewritten, slow updates] What does the fate of the Multiverse have to do with you? In your past life, you experienced nothing but irony and a cold black drop, so why is it then when you're taken away everything suddenly revolves around you? You never wanted this, after being kidnapped by a glitched out monster, you expected a tranquil life until you died and he tossed you out. But now? Now you've got to learn how to fight, and not for others or the Multiverse. You've got to fight for yourself. Friends that you thought were safe are no longer, and you, the predator, has easily become prey. And you don't want that life anymore.
Forbidden [Nightmare!Sans x Reader] by sighnerd
sighnerd
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Warrior Cats x Undertale Multiverse Crossover ~~~~~~~~ Since the Multiverse was created, the Creators have been fighting over the AUs non-stop. It was a horrible, bloody war that lasted centuries. Many were killed and many were cast away as outsiders. One day, the Creators met in an AU called Dreamtale, and after another battle, the dead came down from the sky as spirits, and the fighting ceases. They told the Creators that were alive to unite, or they would die. So that's what the Creators did. They united. They- and their AUs inhabitants- created Clans. They all lived in Dreamtale, surrounding the Tree of Feelings. Generations passed and the Clans had never seen a war so horrible since the War of the Multiverse. They lived in an almost-harmony. Until Nightmare came along, that is. ~~~~~~~~ Hiya! It's me, Sighnerd. This idea came to me in a dream, so I'm making it a reality. I love Warrior Cats, and I love Undertale, and I tried once before to merge the two, only that didn't work because I wasn't as experienced in writing as I am now. You don't need to understand Warriors to read this! It'll all be explained. The only similarities are the fact that the Sanses (and some not-Sanses) live in Clans, follow the Warrior Code (which will be explained in the introduction), they aren't cats (that's just weird), they have the same roles (tweaked a little because they aren't cats), they follow the same customs, and some other small similarities. Kind of a slow burn. That's what I'm going for, anyway. There may be a few toxic moments, but it's Nightmare, so it's fine. Right? Art and characters (except for the Empathverse Sanses and Sigh) do not belong to me! Neither does Warrior Cats. Cover art belongs to ProductionRoxy. :D My interpretation of the characters, but I'm keeping it as canon as possible. They're tweaked a little to match the Warriors setting.
The Boy Who Doesn't Speak (Sans AUs) -- BEING REWRITTEN by SKSuperKitty
SKSuperKitty
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For some reason, Ink, the Creator and Protector of the Sans AUs, has decided that some of the Sanses of the Multiverse should go to highschool again. Honestly, no one really liked the idea, especially the Bad Sanses, including Ink's enemy, Error. Prince Nightmare is one of the AUs that must repeat these years of treachery. He basically only finished his actual highschool, and is NOT looking forward to having to do it again. Luckily his brother, Prince Dream, will be coming along the journey beside him. But Nightmare and Dream Are polar opposites, so Nightmare can't really get along with his brother's friends, nor Dream get along with Nightmare's, if he had any. With rules to follow and secrets to keep, Nightmare must go through highschool and not let slip the terrible things that happen at home. But then suddenly the two princes disappear. There's no trace as to who might've taken them, either. The only one that doesn't seem concerned is their own father, the king. King Sun-Beam. What is he hiding underneath all of those jewels and fake smiles? A/N: There is lemon/smut. So all you innocent people out there-- don't worry! Because I warn you at every chapter, and right before it happens. I designed the cover, but did the not the amazing artwork of Nightmare Sans. So credit goes to that person for the art. :D Update!!!!: This story is being rewitten. I'm making another book that'll just be this one but a little different. Once that's posted, I'll make another "chapter" in this one, giving a link to the rewrite. Thank you to everyone who still reads or checks up on this book. <3333
The Rogue Rebellion [Nightmare!Sans x Reader] [[SEQUEL TO FORBIDDEN]] by sighnerd
sighnerd
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Warrior Cats x Undertale Multiverse Crossover ~~~~~~~~ None of the clans have seen Ash or the other rogues in years. Peace has settled among the clans, apart from the common small border skirmish. Nightmare and Y/N are expecting a daughter to arrive any minute. But there's always a calm before the storm. The eye of a hurricane. Ash is secretly planning his revenge, and when he comes, a darkness will fall over the clans like no other. Ash will not give up easily, and his band of rogues will fight by his side until their victory, or their death. ~~~~~~~~ Hello! It's me, Sighnerd. This is the sequel to Forbidden, so you should probably read that first!! I still don't really have drawings of ALL the characters, but I have some, so you'll have to deal with text descriptions until I have them all. If I find the motivation to make them all, that is. But I'll try to make the descriptions better and not forget characters one fourth of the way through the book haha. Again, you don't need to understand Warrior Cats. Everything is explained. I don't own most of the characters, but I own some! Nor do I own Warrior Cats. Cover art is by ProductionRoxy. Trying to keep the characters as canon as possible, but it's difficult when some of them- like Swad or Bird- don't have much information on them. But I'm trying!! It's easier with characters I own :]
Doin' It Right - [Undertale Mafia/Mob AU | Sans x Reader] by james_trmtx
james_trmtx
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[Frisk's Mother Reader | Slow Burn] Monsters are free, and Frisk is safe and sound at home. It feels like fairy tales are real, though a rough break-up after eight years of marriage quickly sobers that thinking. With the break-up follows a proposal straight out of a steamy novel: share a room with a man you've just met, while you get back on your feet and work on the process of finding a new place to move into. Turns out, the guy who smells like grease and beer from how often he visits Grillby's is a lot less romantic than you would think. And it's precisely living together what gets you to know all the icky things about him. Until you end up falling for him with each nice little thing he does, and suddenly... It feels like all those icky things start to matter less and less. More so, when things take a sharp turn and you're in the middle of a gang fight, helping him however you can despite not knowing what you're signing up for. Overlooking details like bloody clothing, chipped teeth, and reports of missing people on the telly make seeing him drinking straight from the milk carton a much more tolerable offense. [Cover Image Credit: 愚木混株CDD20 on Pixabay.]
Mafiatale- Murdered [Completed] by disturbed_enough
disturbed_enough
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You the reader (Y/N), are an assassin. You were never big on joining a gang until a certain skeleton showed up. You are offered a spot in their mob, will you stay for the money or for the people?
||My Princess|| Mafiatale!Sans x Reader (Completed) by ArchievedAsh
ArchievedAsh
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Y/n is 19, homeless and steals for a living. But when a fateful encounter happens at a local bar, things turn for the better for y/n, or maybe not..... but no matter what happens, her new friends will help her along the way, maybe someone being a little more than just friends..... (Y/N back story) I was forced into being a servant at the age of 6 and escaped when I was 16, after, I was living on the streets for a good 3 years. During this time, I had picked up a few things like how to jump from building to building and how to hide my secrets from others. More importantly, how to use a weapon and how to dodge.
Addicted (Mafia Sans x Reader) by AlissaShaw
AlissaShaw
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In a large city divided down the center into two territories, the humans, and the monsters, you're forced to pick sides. Living between monsters and humans have caused many close calls on your part. You try to stay out of it until a new type of drug starts circulating. This is no ordinary drug and it's sold by an extraordinary group of people. Cover art is not mine.
Repo Man (Mafia!Sans x Reader) by morrow-
morrow-
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In a startling post-apocalyptic world, society is divided into two orderly classes. The human race stands on top, untouched by nuclear war in the city of Chicago. Monsters are at the bottom of the food chain, confined to live in run-down apartments, minimum wages hard to come by, the backbone of the work force in Chicago. They often find themselves the victims of senseless violence, dropping by the dozens each day. Tensions rise and anger grows between the two groups, a civil war seems all too likely. And with humans and monsters so scarce after a nuclear war that ravaged the planet, they cannot afford anymore losses. All at once, at the wrong place at the wrong time, a human finds themselves thrown into the midst, and the fate of the planet may rest in their hands.