1 - 20 of 1,551 Works in Alternate Universe - Horrortale (Undertale)
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You'd been happy. Life had been going perfect. Until it wasn't. You lost those dearest to you and in your mourning and grief, you suddenly find yourself staring at the machine in the basement. Then you're whisked away to another world and things just seem like so much given all you've already gone through.
How will the Skeleton House react when they learn a secret even you don't realize you're hiding? And can they help you recover from your grief?
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What's life without a little excitement now and then?
Like two new housemates that are skeletons!A Horrortale/Farmtale story about living a quiet life and finding love and friendship.
Inspired by:
Horrortale by sourapplestudios, First Contact (a collection of Fables and Romances) by Llama_Goddess, and Fur a good time call... by potatochisp.Series
- Part 1 of TMH
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You are lost in the woods after a terrible storm washes away the trail. Things would be great if you hadn’t come out to Ebbott. There is a fine line between you and the harpies that circle the mountain. The trail is a safe zone but if you step off of it unknowingly closer to the mountain? You’re a harpies dinner. Scared when it is confirmed you indeed have stepped in the wrong direction thinking you found the trail… turned out to be a deer trail… and now a harpy has you in his sights.
Inspired by Llama_Goddess Imagines on their Tumblr @llamagoddessofficial!
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Red isn't at his home AU...
theirs no beartraps covered in rust in his Snowdin. nor is their scratch marks covering the base of the trees.
The Portal spit him out at the wrong timeline!Rust with a hint of iron is all he smells.
The path crooked and wrong.
This new underground mocks and jeers at him.
Stopping gets rewarded with getting threatened and questioning morals leads to death.
is the stranger friend or foe?Red really needs a drink...
Series
- Part 1 of Bone aches
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Nightmare notices lately there's been high influxes of negativity within the multiverse. Even stranger so, was how heavily concentrated they were within one AU. When the demigod of negativity finds opportunity to investigate, he didn't quite know what he expected.
It certainly wasn't this.
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(A/N: An f!god fanfic. Error comes in later.) -
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After escaping from the underground, Sans struggles with his newfound life and routines. He’s been navigating his ptsd through therapy—and baking. Baking eases his pain as he creates his own sweet life alongside his brother and friends.
Everyone goes by nicknames that fit their characters since I think of them like so
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Dr. Vendette is Southern Trebane Hospital's "Miracle Doctor." Her quick thinking, cool demeanor, and no-nonsense attitude make her the star attending doctor in both north and south Trebane. Her reputation professionally is glowing, but everyone who knows her personally has differing reviews. More people hate her than she knows. Regardless, her untimely death shocked the whole of Trebane, and no one can argue that the city has lost its miracle.
Upon her death, Dr. Vendette is not greeted by pearly gates or hellish fire but by a disembodied voice in a dark void. The voices argue over her fate, and she wakes to find herself facing a new challenge. The young doctor has become the antagonist in a dating sim synthesized from the multiverse of her favorite game, Undertale. She will have to survive being the villain many believe her to be. After all, that's what an antagonist is, right?This is a reader-insert! A better explanation will be in the author's note at the end of chapter 1, but I will say this is a writing experiment for some of the darker themes produced by my other story of a similar concept, "They Call me Antagonist, but I prefer Anti-hero."
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When the people started becoming monsters, Qiunn wasn't surprised. She had been waiting to meat them for years. She just wished they wouldn't keep her waiting.
You know how this gose, Monsters surfacing makes humans become mimics. MC needs help but the font clan already has a mimic to look after.
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An ill-thought through party in the woods leads to you getting lost with a dead phone and no way to know where you're going. When all seems lost you stumble across a cabin hidden in the dark depths of the surrounding trees. In classic horror movie hero fashion you find yourself entering the creepy house to find more than you bargained for; including quite a few skeletons unearthed from the closet.
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Undertale X Horrortale Crossover
The monsters had been freed thanks to Frisk a few weeks prior. The process of moving to the town where Mount Ebbot was located was difficult; initially, the humans weren't comfortable with the idea, but after watching interviews and videos about their race, they decided to give them a chance.
And so, they only needed a few things from their homes to bring to the surface.
For Sans, the machine in his secret workshop no longer served much purpose, but he couldn't just abandon it there in the Underground without any protection.
He had wanted to dismantle it alone, but Alphys insisted that it was difficult for him to say no.
A misplaced cable, an accidental dismantling, and the breaking of the machine's core were all it took to melt everything around them and transport them to a different Underground.
A colder, more hostile one.
Where dried blood and dust accumulated like flies.
What will Papyrus do without the brother he grew up with, and now have to live for five days with a completely unpredictable version of Sans?
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What happens when the soul persists? When a guardian is left adrift without a body or a soul, merely existing?
Well beings beyond their realm take interest.Pulled into the Void, Nightmare finds it in himself to try to take back his life. Will he be able to with the power of a Tenno welling within him?
And how long is too long to reunite with family?I’m waiting for word from the hospital for important shiz and Warframe is my only saving grace right now keeping me sane. And my mind always goes back to undertale when things are chaotic so ah… this idea spawned?
Nightmare was caught up in millenia of torment from his perspective until a trapped Operator (Ayatan) found him. Pulling him out of his endless torment to form a pact.
I whole heartedly blame you Eclipse for this first chapter. That Octavia quote was too golden lol -
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After your best skelefriends disappear on you with only a shitty phone-call goodbye for 'closure', you find yourself spending months looking for them everywhere -- failing, failing, failing until one certain trail led you to getting lost in a forest on a mountain, had your life threatened more times than you could remember, and made what were only two skeletons at first suddenly multiply in count.
What no one expected, however, was how your SOUL made you hold a secret nobody was aware of, and just how it made every single thing connect to you.
...Unless, of course, you were Sans.
Almost unless, anyway.
Just an advice though, dearest Reader?𝘿 𝙤 𝙣 𝙤 𝙩 𝙙 𝙞 𝙚 .
Boy, are you in for a ride.
Series
- Part 1 of ksverse
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This gaggle of wise-cracking skeletons keep popping up and acting like they know better. And boy, do you hate it when someone even THINKS they know better than you. Your mum says you're a proactive control freak, but these skeleton should just take a step back and let you lead the way! They’re just begging for you to be spiteful at this point. Or just, like, a little bit petty. Who knows why they keep inserting themselves in your life?
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Stretch has been your best friend since you two were children. Ever since you first introduced yourself to him, he's felt this pull towards you, and you can feel it too. The two of you have been harboring crushes for so long, will either of you ever confess?
Blue didn't really know what the machine in the basement did, it was his late father's old project. When drunken mistake causes this dormant machine to suddenly spit out skeletons who look eerily similar to him and his little brother, how will they deal with their counterparts in a foreign world?
Act 1: Flowers Waiting to Bloom (Chapter 1-20)
Act 2: Fields of Flowers (Chapter 21 - 38)
Act 3: Petals in the Wind (Chapter 39 - 45)Series
- Part 1 of Forget Me Not
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Monsters emerged from Mt. Ebott only a year ago, many had accepted monsters, but many had not been as accepting of the new race.
You lived in a small town of Ebott a few hours drive outside of the borders of New Ebott city, you owned and ran a small shop. You knew just about everybody in this small town, but it seems there’s a few new comers, more specifically skeletons that move into the property down from yours.
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The House Next Door by BattleMaiden13
Fandoms: Undertale (Video Game), Underfell - Fandom, Underswap - Fandom, Swapfell - Fandom, Mafiatale - Fandom, Mafiafell - Fandom, Mafiaswap - Fandom
11 Jun 2026
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The first time you met monsters you manage to run into four of them and literally run into one of those four. Now they are apparently moving in next door with their siblings and you can't seem to imagine a life without monsters. On the plus side they tell horrible jokes and have endless amounts of energy. So what could possibly go wrong.
Part 1) Chapters 1-138
Part 2) Chapters 139 - ??? -
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You were just walking home. A tear in reality split open underneath your feet and suddenly you were falling.
Falling
FallingThen you fell up and onto the tiled floor of a basement lab.
Now all of a sudden you're in another world and surrounded by 6 strange skeletons (plus one's brother).
Being terrified of all things horror and monsters, what are you to do?*Will contain mature themes but no smut*
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Warnings: -Confusing elements- Violence- Suicide- Character deaths- Blah blah blah- My story! My logic! If you don't like it, stop reading.
Credits:
• My Characters: Me (Miss Shadow)
• Outertale and its characters: Mimi Pippinski
• Ink Sans: Comyet
• Erorr Sans and Fresh sans: CrayonQueen
• Murder Sans/Dust Sans: Ask-Dusttale
• horrortale and its characters: Sourapplestudios
• Cross/Xsans and XChara: Jakei95
• killer sans: Rahafwabas
• Underswap and its characters: P0pc0rnPr1nce
• Dreamtale (Nightmare and Dream): Joku
• Core Frisk: DokuDokiAn ordinary day in 'The Basement'
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Glitchy sensed something, even Error.
Is this a new NPC with a powerful aura? Or is it the player they've been waiting for?
Error started searching for Body, but unfortunately, he didn't find her. So it seems two members of the E̶̫͐r̶͇̊r̶̰͊o̶̠͆r̴͔͆2̵̩͑1̸̰̇4̸̼̿ trio will be going on this trip.
What will happen? Who is this, or what is this? You will find out.
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Phoenix was loving, caring, trusting and kind...until the world destroyed her inside and out. Now, she just wants the pain and suffering to end. she wants to be at peace. suddenly, Phoenix and her two cousins were thrown out of their reality and given another chance.
Sans and the other's knew they fucked up when two human woman were on the ground unconscious and the other woman, as scarred up as she was, stood on shaky legs between them with a nasty dead glare.
"What the fuck.."
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Will Phoenix finally be safe?
Will these skeletons earn her trust?
Or will they Judge her like all the other humans? -
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Akaya, an intercross descendant of vegetoids, finds herself trying to keep her community fed; while also supporting her friends as the core starts to fail and food shortages ravage the underground.
Series
- Part 1 of Intercrossed Monsters Multiverse