Undertale Stories

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1.2K Stories

Universal Surface Angel  by Lithriel
#1
Universal Surface Angel by Lithriel
Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a...
Completed
+11 more
Sans X Child Reader by Yusuka-chan
#2
Sans X Child Readerby Yusuka-chan
[I have decided to do what I always wanted 😄😄]:some people put warnings for these so.....CHILD ABUSE IS DISCUSSED You were, thought to be mute and was horribly abused...
+6 more
Kitten (Sans X Neko!Reader) by ShadowGirl1996
#3
Kitten (Sans X Neko!Reader)by ShadowGirl1996
"Your human right?" "No. I would never want to be like them." "But your not a monster?" "Like I said...I'm not a human or monster. I'm...
Completed
+12 more
Undertale X Reader by Frei_111
#4
Undertale X Readerby Frei_111
You woke up on bed of golden flowers without having anything to remember. Going to an adventure where you met with many monsters to go home. Easy, right? Not really, act...
Completed
+8 more
Storyshift Chara by Ghosts10
#5
Storyshift Charaby Popcorn
A boy and his friend were having a party. You got lost into the woods and didn't know where you were going. You see a strange looking figure standing at a bass of a gian...
+4 more
Chara x Reader by anjistar
#6
Chara x Readerby ✨
It's been a few months since monsters entered the human realm, but there's something else biting on the mind of your best friend Frisk - and she bears a lot of history...
+1 more
Fallen Angel (Gaster x reader) by Feniksiara
#7
Fallen Angel (Gaster x reader)by Null is the best demon and yo...
An angel. Sign of hope for humans, yet a nightmare for monsters. Powerful, skilled and...beautiful. But what happens when one rebels against the cruelty towards monster...
+13 more
The Silver Soul by EffieTrinket1619
#8
The Silver Soulby Effie Trinket
A girl with a strange soul lands in the Underground, with no memory of her life. Who is she, and what is her story?
Completed
Soul Mates (Sans x reader) by TheOmelette
#9
Soul Mates (Sans x reader)by M
Uh
Completed
+4 more
Screw Logic by Torigirl13
#10
Screw Logicby Tori or Çrīmßøñ
Bendy Au x Little Nightmares Reader x Sans Au (in a sibling way ur 9) You are (Y/n) Rosita Maur, everyone calls you Six because, well, thats what you tell them. At one p...
+6 more
(Sans x Reader) When Two Souls Meet by ZanaBSparrows
#11
(Sans x Reader) When Two Souls Meetby Zana B Sparrows
Sans has lived through countless timelines. He's seen the kid make friends with everyone, only to give up in the final moments. He's seen the kid killed, over and over a...
Completed
+14 more
Fresh Sans X Reader (Being Rewritten) by ghostlyEclipse
#12
Fresh Sans X Reader (Being Rewritt...by ghostlyEclipse
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 wo...
Completed
+6 more
Undertale: Twin sister by The_twins_of_hearts
#13
Undertale: Twin sisterby ☆_Fallen_Star_☆
After Frisk goes missing, Caitlin, Frisk's twin sister goes looking for her in the the last place she saw her. MT Ebott, the mountain of dark legends, she finds a neckla...
Completed
+3 more
Error's Daughter || Godess Of Darkness And Destiny by HazelGray106
#14
Error's Daughter || Godess Of Dark...by HazelGray106
Error: Forced God Of Destruction, Destroys AUs, Faith is just forcing him to destroy, Ink doesn't understand his true intention, He is just saving everyone and he is doi...
+21 more
Undertale Sister Scenarios by EmilySkelewolf
#15
Undertale Sister Scenariosby BrownENH
"Like Underfell, but a different AU."
+5 more
More than friends (Female Chara x reader) by Friskybits13
#16
More than friends (Female Chara x...by Cringe
Yes there will be mistakes >:3
Completed
+10 more
The First Human [X Sans] {COMPLETE} by RaeTheStar
#17
The First Human [X Sans] {COMPLETE}by RaeTheStar
Imagine Undertale, but Chara never showed up. Chara wasn't the first human in the Underground. What if a glitch occurred, and you fell down instead? You fell into the Un...
Completed
+7 more
Five Nights at Undertale by Awesome1o2
#18
Five Nights at Undertaleby Awesome1o2
What would happen if instead of Frisk, the crying child from FNaF fell down Mount Ebbot? This is the story of Daniel, a poor, crybaby 7 year old and his weirdly sentient...
Completed
+7 more
Bone of Contention (Underswap Papyrus X Reader) by TheIndianaCrew
#19
Bone of Contention (Underswap Papy...by Indiana
Humanity is divided over one thing, the monsters reappearance. Some believe they should stay aboveground and others think they should be sent back where they came from...
+8 more
Random Pictures I Just Put Cuz I'm Bored by Animegirlovertoy
#20
Random Pictures I Just Put Cuz I'm...by Lonely Bean
There are pictures that's it and I own none of these pictures all of them belong to their rightful owner also if you know who the creators are give them all the credits...
+12 more