Undertalealternateuniverse Stories

21 Stories

The Eclipse Rebirth|Target Settled Sequel| by LaliaShy
#1
The Eclipse Rebirth|Target Settled...by LaliaAngel
With Nightmare coming to terms back to his original form he still struggles to fit in as the prince of darkness, however in the shadows many followers haven't approved o...
Choices {Multiship} DISCONTINUED by inkuinky
#2
Choices {Multiship} DISCONTINUEDby 🧸 𝐈𝐧𝐤𝐲 💫
The good, the bad, protection, and destruction. That's all it's ever been. Devastation and creation. It was an endless cycle. But what if there was more? When underlyin...
Falling Stars| Killer x Outer/Outer x Killer by LaliaShy
#3
Falling Stars| Killer x Outer/Oute...by LaliaAngel
The creator no longer responded to the protector's calls, those colourful hues stopped dripping from the doodle-sphere. Without those hues, he couldn't feel anything. U...
"чσu'rє mínє" (HoneyMustard) by ratcooned
#4
"чσu'rє mínє" (HoneyMustard)by Noah
This Is A Fan Fic For My Favorite Undertale AU Ship Honey Mustard! (US!Papy x UF!Sans) -Disclaimer- UnderSwap Papyrus and UnderFell Sans do not belong to me. UnderSwap P...
My Evil Twin Was Pulled into Another Dimension So Now I Have to Bring Him Back by NightfallSongbird
#5
My Evil Twin Was Pulled into Anoth...by NightfallSongbird
So I just got hit with a random burst of inspiration and I'm writing my ideas here before I forget My Hero + Undertale multiverse Xover anyone? Oh, this is mostly crack...
Random Undertale Multiverse RP by MoonSoul_26
#6
Random Undertale Multiverse RPby 💎FoxGirl💎
Welcome to my book of UTMV. Here have some cookies before you start. 🍪🍪🍪
Omission by LunaMysticMoon
#7
Omissionby Mariah Taylor
In a world that was not meant to be created, one girl has the power to stop it from being destroyed. There's nothing special about this girl. There was nothing that qual...
Undersave by HoneyWorksStoryDump
#8
Undersaveby
Another wacky Undertale AU I have! Hopefully less half-baked than the last one.
UNDERFILES | An Original Undertale AU | Extended Version | [HIATUS] by Macrolunatic
#9
UNDERFILES | An Original Undertale...by Macrolunatic
This is the story of UNDERFILES. An alternate universe where files can be edited with the overwrite button. Humans committed mistakes that were impossible to solve, and...
Spec Untold Stories by Itorilan
#10
Spec Untold Storiesby Wulan
These are the untold stories of Spec, an alternate version of Sans from Undertale by Toby Fox, created by Itorilan. You can find them on DeviantArt.
Drabbles (Undertale Edition) by DeliriousAcer
#11
Drabbles (Undertale Edition)by Hunter
This is compiled of short or long stories Undertale themed! It'll be mostly oc and au work however so if that's not your thing I understand! May include: - LGBTQ - Heavy...
The Meteor Shower | NightKiller/StarKiller | by macrolunatic. by Macrolunatic
#12
The Meteor Shower | NightKiller/St...by Macrolunatic
Nightmare and Killer are in-love mates, but some months ago Killer met Outer on a mission, and he ended up liking his company. Killer stopped loving his mate for how Nig...
Colorful Solitude | Error x Ink Story and One-shots | by macrolunatic. by Macrolunatic
#13
Colorful Solitude | Error x Ink St...by Macrolunatic
You'll find some Errorink stories and one-shots in here, you know how this goes. Have fun reading! [Beware some +13 and +18 chapters or one-shots!] I will update this u...
Breadtale [A Undertale AU] by 90zlover2004
#15
Breadtale [A Undertale AU]by Liltoasterboy
This AU combines the worlds of Undertale and Breadwinners. Not much more than that, maybe it will be more than that to some of you guys
Vergessentale by IQReMCS
#16
Vergessentaleby sK.E.leton5
Vergessentale is an Undertale alternative universe that serves as a crossover between Undertale and my own original series "Vergessen und Mutlos" and replaces...
EMPYREAN!TALE: The Story Series ((HIATUS)) by Xyromiee
#17
EMPYREAN!TALE: The Story Series ((...by XYROMIE!
The journey never ends. Lylen, Frisk, and Asriel still has more adventures up ahead.
LOCKTALE AU : announcement!!!!!  by fangirl_stories123
#18
LOCKTALE AU : announcement!!!!! by Fangirl Creations
Hello there! I've written some fanfic and a manga, and if your looking for why I haven't been especially active then please read through this I've been working on drafts...
Endless by Broken_Shadow_Melody
#19
Endlessby Echoing Whisper
Endless ideas streamed from their mind, unable to be written onto paper or typed onto the device. The battery of their headphones lowered and didn't help as the music he...