undertale list
39 stories
Fluff Collection Of Undertale AU One Shots by dead-beyond-belief
dead-beyond-belief
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    Parts 13
ERRORBERRY, ERRORFRESH, ERRORINK FLUFF AHEAD. VERY, VERY FLUFFY. AND PROBABLY SOME FEELS.
Galaxy Dreams(Dreamtale and Outertale Sans x Reader) by MilkyMiyu
MilkyMiyu
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    Parts 10
Y/N loves the stars. She wants to make friends who like her interests but know one actually cared about HER opinion. What if certain cheerful and lazy skeletons turns Y/N's frown back around.
Creepypasta and Undertale crossover by hanaab001
hanaab001
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    Parts 10
This was a request from a friend so just...its probably terrible. The title says almost everything! This is gonna be so fun to write. Well,its always fun to do crossovers with fandom's. If some things aren't the way they are supposed to be,sorry 'bout that. I don't know that much about either topic. These are mostly from the comics and funny animations I watch. NOTE: Not all the characters are in here. You can kinda tell! Also,I do not own any of the characters in this story. They belong to their rightful owners/creators. The book cover does not belong to me,the actual person who made it,is at the bottom. But...Aww so cute!
UnderTale High Skoolz (Reader Insert) by Nellie_Cake25
Nellie_Cake25
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    Parts 23
[Warning: Characters in the story are human!] Snowdin High School was ranked the most boring schools in Snowdin Village itself. You, a normal student attending the school, realized why. No one participates in spirit days, the jocks aren't even motivated enough to even try during sports seasons, the same old same old served in the cafeteria daily, and other factors that resulted to make the school a not so happy place to be. Suddenly, new students were entering the school at the start of the year, making things a lot more interesting. Some like Undyne pushed people harder after beating the whole team in one go while others like Mettaton brought back fashion in a "uniform-only" campus. A single parent with two high school children took the opportunity to be a teacher, and thus, created a wacky learning environment. For some reason, everyone wants to befriend Asriel, a boy who can communicate using flowers and has a talking flower of his own. You and Frisk, a male friend of yours, decided to adjust to the new students. The results are hilarious beauty in the eyes of the whole school. Now you ask me: What can go wrong? Undertale (c) by Toby Fox; Human!Undertale Art by Matocc.tumblr.com
Inking Love  by nneverendingg
nneverendingg
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    Parts 14
Ink x Error Cover by: @mariexhood WARNING: I made this when I was first getting into the fandom, so a lot of things don't make sense. Also this contains MEGA CRINGE Highest Rank: #64 in Undertale
An Error Of A New Beginning by babyparty
babyparty
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    Parts 10
Soo oooo i had an idea what if error sans was some how turn back into a baby and ink had to take care of him
Anything Can Happen (Sans x Reader) by ForgottenMatter
ForgottenMatter
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    Parts 15
An unexpected turn of events lands you in the depths of Mt. Ebott. Upon waking up, you found yourself with a interesting and skeletal duo. {Completed} Thank you so much for 10k+ reads and 300+ votes! \o/
It's Always Raining Somewhere Else  (Undertale SansxReader) by skytheshookest
skytheshookest
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    Parts 27
Reader is a little mentally unstable so you are sent to a high school for the gifted and talented which just has to be the only high school enrolling monsters at the moment but monsters have been underground so long they have to learn all the new things right? Right?? Takes place around the end of the school year and it's your senior year.
Ungrateful (Geno!Sans x Reader) by BubbleBerryUniverse
BubbleBerryUniverse
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    Parts 33
account inactive. you can find me on @Mini_Crushies
Fresh Sans X Reader (Being Rewritten) by ghostlyEclipse
ghostlyEclipse
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You were created a long time ago, by Ink, to be his successor after his sudden disappearance. You were left within a distant void that is hardly in contact with other worlds--thus relatively hard to enter. But one day, Error finds your world and is ready to destroy you the moment he gets his hands on your soul. Falling into a new AU while trying to escape him, you may have met your soul mate. **This story is currently being rewritten! The plot line stays just about the same, the only thing I'd say changes a whole lot is the quality of the story itself.