Undertaleoc Stories

282 Stories

Grouptale [Undertale AU] by FridayHater
#1
Grouptale [Undertale AU]by FridayHater
What if the six fallen humans who died before Frisk never died and instead joined Frisk on their journey through the Underground? It all seems good... aside from Frisk...
An Underswap AU: A Tale of Seven Book 1 by sabermoonlight1616
#2
An Underswap AU: A Tale of Seven B...by [REDACTED]
The Multiverse is vast, expanding continuously as more alternate dimensions are being created. Each world possesses it's own unique laws, stories and inhabitants. This w...
ANOMALY V  by Thecrabspilot
#3
ANOMALY V by THECRABSPILOT
This is an undertale au WILL tap into underverse I made veris don't ruin him (please) I seriously had no idea for names for this book Before
My Gacha Club OC's book by -_Sakura_Getsumei_-
#4
My Gacha Club OC's bookby -_Sakura_-
This is a book of my Gacha Club OC's. Enjoy Gacha Club fans!
Outcast One Shots #4 {Hiatus} by Broken-fnaf-fan
#5
Outcast One Shots #4 {Hiatus}by Artsy is bored.
Cover art by: Shybug×17, Thank you so much love! Welcome to my book of one shots! These one shots will be for my boys, The Outcasts! If you're new, Welcome! The Outca...
Diary of a Chara by TeradoraShadowRaven
#6
Diary of a Charaby Teradora ShadowRaven
The multiverse collapsed, Ink, Error, Dream and Nightmare are missing. A Chara travels to another multiverse in search for answers. ( I'm bad at descriptions) Cover dra...
Undertale: Fragmented souls by No043114845
#7
Undertale: Fragmented soulsby Trapblast2006
This story takes place in the Neutral Pacifist path After Flowey finally got the six human souls and killed Frisk 999,999,999 times he ended her and claimed her soul an...
pj's nursery  by xi-star
#8
pj's nursery by Moony_Owl
I decided that I would remake this and make it cute! paperjam is a sweet skeleton that owns a daycare with kids with different and chaotic personalities, who knows what...
Undertale Fallen Determination: Book 2 by CobaltGemini
#9
Undertale Fallen Determination: Bo...by Cobalt Gemini (Jacob Zorn)
After Chara is freed from the Void, reunited with her friend, Gaster, and gone through a Reset of time, she must now help guide young Frisk through the Underground, sho...
Lost yet Found (an undertale Au story)  by itsjustellii
#10
Lost yet Found (an undertale Au st...by Elli Leather
Hi there, if by any chance you've happened to stumble across this book, this is me, creating a storyline for my own au which I'll be mixing up with some other familiar o...
UnderSplit by hatlad
#11
UnderSplitby Hatters
An AU of Undertale set in where Monsters have discovered how to split their soul, and conceal it, giving them a second chance at life, and have learned to embed their ow...
𝐖𝐀𝐍𝐃𝐄𝐑𝐄𝐑 | 𝐔𝐍𝐃𝐄𝐑𝐓𝐀𝐋𝐄 𝐎𝐂 𝐁𝐎𝐎𝐊 by -emberknight
#12
𝐖𝐀𝐍𝐃𝐄𝐑𝐄𝐑 | 𝐔𝐍𝐃𝐄𝐑𝐓𝐀�...by 𝐭𝐡𝐞 𝐞𝐦𝐛𝐞𝐫 𝐤𝐧𝐢𝐠𝐡�...
got bit by the undertale bug all over again after watching undertale yellow- time to get back in that ut phase- NO SMUT ALLOWED!
Ulty: the creation of a monster (OUTDATED!) by Ultimateashes
#13
Ulty: the creation of a monster (O...by Ulty Dust Sans
Dust, after realizing that he is trapped in an endless cycle, finally finds human souls, glitches reality, Error takes him as an apprentice and from that moment everythi...
Completed
Reincarnated as my OC, boring. . by Xalatea_Zennia
#14
Reincarnated as my OC, boring. .by Zennia
What a normal day, I'm supposed to be reborn as my OC and all that, right..? Although it seems that F¿#3 messed with my codes. . Now Papyrus, my brother has to get dragg...
<< [Moontale : Earth And Moon Arc] || UNDERTALE AU || First Book >> by Nanaz_Nazmaki
#15
>by Nazma Grace Lambert
! WARNING ! Contains : Violence, Suicide attempts, Blood ------ Monsters race once lived peacefully on Earth with the Human race, but due to some circumstances, Humans d...
Completed
Tales Of Determination by HarrisonWeathers3
#16
Tales Of Determinationby Harrison W
This is an Undertale AND Deltarune fanfic. To avoid confusion, it is set after Frisk saves the underground. All the monsters, including Frisk, move to the surface. Now e...
A Tale Of Tails by BlackRoses839
#17
A Tale Of Tailsby Black Roses
Yeah, I guess I'm doin a leviathantale thing now, even though it's past mermay :/ btw, I don't know anything about this AU, so I'm pretty much just making shit up. Sci a...
Sonas by Lamo_Lucas
#18
Sonasby Pretty_much
Character Descriptions. Gemsonas Undertale sonas Personas
Undertale Fallen Determination: Book 1 by CobaltGemini
#19
Undertale Fallen Determination: Bo...by Cobalt Gemini (Jacob Zorn)
What happens when the Fallen Child is not the one to take their life to pass the barrier? After the death of her brother, Chara, escaping her father's anger, finds herse...