Fellswap Stories

132 Stories

Becoming Papyrus from Fellswap Gold by Jun040
#1
Becoming Papyrus from Fellswap Goldby Jun004
You died and got reincarnated into Fellswap Gold. You are now Papyrus. What the fuck! Not my art! https://www.tumblr.com/meatballsu Original creator of Fellswap Gold: ht...
Becoming ink sans from undertale multiverse!? by KarmaAkabane425
#2
Becoming ink sans from undertale m...by Karma Akabane
What if someone from our world died knowing a lot from the undertale and their multiverse/underverse? What if that person also knew about the balance and didn't creat to...
Naturetale : reborn as lavender  by KarmaAkabane425
#3
Naturetale : reborn as lavender by Karma Akabane
(As far as I know, no one has made a story about naturetale like this so..and the only reason why I writing one like this is because of fatal error part 5? Or part 4, go...
About Time by _Irrelevant_Author_
#4
About Timeby Irrel
You were always put in second place due to your sister being favored over you. No matter what you did it always seemed that you both were competing against each other. Y...
Reborn as sans from UnderSoul  by KarmaAkabane425
#5
Reborn as sans from UnderSoul by Karma Akabane
I was reborn as sans from my own made up au. How did that happen? I have no idea. Luckily I was still a kid so I didn't have to act like how I made sans to act like but...
Villainess with a death wish - AU Sans x reader x AU Papyrus by Mallory_Abi_Moriarty
#6
Villainess with a death wish - AU...by Mallory_Abi_Moriarty
Who would have thought that being bored in quarantine would result in being sucked in into the worse dating sim ever? Well, (Y/n) never believed that would happen, until...
(ՏᗩᑎՏ ᗩᑌ x READER x ᑭᗩᑭYᖇᑌՏ ᗩᑌ)  A Skele-ton Of Harem by YourdailyMOONBERRY
#7
(ՏᗩᑎՏ ᗩᑌ x READER x ᑭᗩᑭYᖇᑌՏ ᗩᑌ) A...by your daily MOON BERRY
You are a introvert who loves undertale and multiverse and loves to play video games and listin to music. What will happen if one day you meet the skele-bros of differ...
Me and my brother become sans and papyrus from our own story!? by KarmaAkabane425
#8
Me and my brother become sans and...by Karma Akabane
What if two brothers somehow end up in their own story as the sans and papyrus that they made? They called the story starfell, mostly because everyone in the story is li...
Undertale One-shots by Sabinarius
#9
Undertale One-shotsby Sabinarius
Undertale one-shots, imagines and scenarios reader x various Requests open! I have a habit of slipping into Fem reader, but i'm happy to make a gender neutral or male re...
+22 more
Transported into Swapfell sans as a second personality!? by KarmaAkabane425
#10
Transported into Swapfell sans as...by Karma Akabane
What if someone from our world was transported into Swapfell sans as a second personality while the sans was just a mere babybones? (Different things, different personal...
Gonetale: A UnderTale AU by runeightmiles
#11
Gonetale: A UnderTale AUby runeightmiles
Alex falls as the 8th child. Will he be okay? Or will he die to the monsters? **************************
Completed
chara x sans oneshots by das_not_good
#12
chara x sans oneshotsby chansmyotpbruh
hey everyone who is gonna read this oneshot book please request if you want requests are open right now . i will do lemons , fluff ,angst and etc. so just request what a...
House of Papyrus by WhyDidIDoThisToMe
#13
House of Papyrusby Wheatley
You'd just been fired from your job, but as luck would have it there's a maid position in a house fulls of Sans-es!!! Oh wait, no there isn't... But there is a position...
The Trinity of Vengeance by underfellfan7135
#14
The Trinity of Vengeanceby TheInternetObserver
Undertale Sans... Underswap Papyrus... Storyshift Chara... What could go wrong?
Book 2: The First Fallen Human  by carelesscreativity
#15
Book 2: The First Fallen Human by CarelessCreativity
(DISCLAIMER: THIS IS AN UNDERTALE AU) Allow me to describe this in the simplest way I can. There is a fanfic-like covering, but with a much darker, twisted undertone. S...
Bitterly Sweet by SomeoneReallyGay
#16
Bitterly Sweetby Richie
Undertale fontcest fic, NSFW warning here and here only. A sexy, kink-filled fanfic that probably doesn't make sense canonly. Pairing: Stretch (Underswap Papyrus) & Slim...
Sanscest Oneshots, Drabbles And Lemons 3 by Little_Marshmallows
#17
Sanscest Oneshots, Drabbles And Le...by DISABLED ACCOUNT
This is all self-indulgent shit really thus why this book isn't going to be taking any request at all. thank you. I don't own anything except for the stories.
Evil Sanses x Reader 2.0 by Devxil
#18
Evil Sanses x Reader 2.0by Devxil
This is a rewrite of my first ever Sans x reader kind of story. I hated the first one for bad writing skills, but I have come a long way from that. So have fun. *Hi, I'...
Undertale AU X Reader Oneshots by TheIndianaCrew
#19
Undertale AU X Reader Oneshotsby Indie
Here is a collection of oneshots I write in between my other stories to practice some character's personalities. I will not be taking requests and there won't be any spe...
Becoming the multiverse from undertale by KarmaAkabane425
#20
Becoming the multiverse from under...by Karma Akabane
What if someone from our world became the multiverse? Well everything is not likely to stay the same at all.. (Things will be different even possible personalities or a...