Underfell Stories

1.2K Stories

Six Skeletons, One Maid by RaccoonSinQueen
#1
Six Skeletons, One Maidby RaccoonSinQueen
Moved from AO3 because of reasons! "You are the only maid (or worker in general) that serves for the Skeletal Household. It's a skele-ton of work, but you manage by...
Can I take you to Dinner? Mafi-fell!Sans x Reader.  [COMPLETED] by MissHoll-E-Socks
#2
Can I take you to Dinner? Mafi-fel...by MissHoll-E-Socks
"How rude, not even gonna ask for a name??" He teased. "Why are you here?" You glowered, raising the whisk. The skeleton scoffed: "Well, glad yo...
Reincarnated as Underfell Sans but different? (REWRITE) by _Dist0rtedVisi0n_
#3
Reincarnated as Underfell Sans but...by ✦••𝐒𝐥𝐞𝐞𝐩𝐲••✦
This is the rewrite, the old book is still out for readers to read for reasons I do not know of.
𝙻𝚘𝚟𝚎 𝚊𝚛𝚘𝚞𝚗𝚍 𝚝𝚑𝚎 𝚌𝚘𝚛𝚗𝚎𝚛 𝚜𝚝𝚘𝚛𝚎 by MerryJane8
#4
𝙻𝚘𝚟𝚎 𝚊𝚛𝚘𝚞𝚗𝚍 𝚝𝚑𝚎 𝚌𝚘�...by Bitxhy
(ᴠᴀʀɪᴏᴜs sᴀɴs ᴀɴᴅ ᴘᴀᴘʏʀᴜs ᴀᴜs x ʀᴇᴀᴅᴇʀ) ||ᴀɴᴅ ᴛʜᴇɴ ɪ ɢᴏ ᴀɴᴅ sᴘᴏɪʟ ɪᴛ ᴀʟʟ ʙʏ sᴀʏɪɴɢ sᴏᴍᴇᴛʜɪɴɢ sᴛᴜᴘɪᴅ ʟɪᴋᴇ "ɪ ʟᴏᴠᴇ ʏᴏᴜ."|| Life was merciful enough to grace you...
SAFE Home (Sans AU's X Reader X Papyrus AU's) by EmelinStriker
#5
SAFE Home (Sans AU's X Reader X Pa...by Emelin
Sans AU's X Reader X Papyrus AU's (Girls only!) (FASTER UPDATES ARE ON QUOTEV!) (#ShoeTheTape) You were a quiet, anti-social girl with a big house you've got from your...
Healing *Discontinued For Now* by Dyell_Does_Writing
#6
Healing *Discontinued For Now*by Dyell
Sans (Red) is a monster trapped in the nightmare that is Underfell. Brotherly abuse and the stresses of this world cause him to do the unthinkable, how will the Swap bro...
Castle's Pet (Bad Guys X Reader) by EmelinStriker
#8
Castle's Pet (Bad Guys X Reader)by Emelin
[Highest Rank: #1 in "sans"] [Second Highest Rank: #18 in "xreader"] (Girls only!) (Earlier updates are on my Quotev account!) WARNING: Profanity a...
Game Of House by ican_english
#9
Game Of Houseby Frick.
This story is about a version of Error who destroys not because of fate and not because he is crazy, oh no... here, Error destroyed because he wanted to die. all he wan...
T O  M A K E  Y O U  M I N E [ON HOLD] by __APATHETIC
#10
T O M A K E Y O U M I N E [ON H...by Underfell Papyrus
Your everyday depressing fellcest- "Who Would Ever Love A Worthless Nuisance Like You, Sans?" The younger skeleton spat, glaring down at his chained brother. T...
Living In Hell. {Depressed Underfell!Sans} by CheyExistsOnceAgain
#11
Living In Hell. {Depressed Underfe...by Chey Kennedy
Underfell, a place where hell shows no bounds, and its kill, or be killed. Sans, a weak and looked down upon monster, suffers in a town, a place called Snowdin. But noth...
Becoming an error by KarmaAkabane425
#12
Becoming an errorby Karma Akabane
What if someone from our world became error and didn't destroy au's and left that for nightmare and his gang and claims au's? ( different things including personalities
Kustard| Classic x Fell by Toaster_Draws
#13
Kustard| Classic x Fellby Toasterdraws
Warning this contains suicidal thoughts. If you're sensitive to that sorta stuff I don't recommend reading this.
Sans AUs x Reader: Boyfriend Scenarios by GameGeek03
#14
Sans AUs x Reader: Boyfriend Scena...by Lune Moore
Sanses included will be...Classic, Swap, Fell, Swapfell, Ink, Error, Dream, Nightmare, Dust, Killer, Lust, Horror, and Fresh. Please be aware that the pronouns used for...
Becoming Error, The Forced God Of Destruction by PinkieKidoCup
#15
Becoming Error, The Forced God Of...by PinkieKido Cup
What if someone is reborn as Error? What if they aren't so bad? What if they're suffering in silence and keeping their job a secret for fear of hate? How will Ink react...
Reborn as fellswap san and now I'm kinda blind!? by KarmaAkabane425
#16
Reborn as fellswap san and now I'm...by Karma Akabane
What if..someone from our world was reborn as fellswap sans? But an accident when he was young leads to becoming blind for a long time and papyrus feels guilty about not...
My Two Masters (UF!Papyrus x Skeleton!Reader) by OreoDaSkeleton
#17
My Two Masters (UF!Papyrus x Skele...by ~Oreo~
Y/N's been traded and sold her entire life. She's learned firsthand that if you don't obey your master, you get hurt. If you force yourself to listen, you live another d...
(Underfell sans x reader (female)) UNDERCOVER by moon1767
#18
(Underfell sans x reader (female))...by Arie
You're a human that has fallen into Mt. Ebott on the year where all humans dress as monsters...Halloween. So how will the monsters know if you're a human or not?
Completed
AU Sans X Reader One-shots by Little_Blue805
#19
AU Sans X Reader One-shotsby Blue
Completely female readers unless a request asks different. That's...really about it, enjoy!
An Oath of Mercy || UnderFell Sans x Reader by PricklyHedgie
#20
An Oath of Mercy || UnderFell Sans...by SilverSnake
One clumsy moment and a broken leg are all it takes to leave you at the mercy of the very edgy and very hostile monsters of the underground. Thanks to your knowledge as...