1 - 20 of 42,135 Works in Sans (Undertale)
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Sans has put in the bone work.
For fifteen years, he's raised Papyrus.
Not even counting the time loop.
And now some pretentious ancient bones want to have a say?
Oh hell no.
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Said "ancient bones" are mortified.
How were they supposed to know the short depressed skeleton was barely two decades old?!
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The Purest Soul 💙 by Sinsational_Sinnabon for merrinbrite
Fandoms: Undertale (Video Game)
10 Feb 2026
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The leader of the human province and head mage, Cadoc, has no qualms in letting anyone willing to listen know that his third daughter—an unassuming girl with a deep blue Soul—has the most powerful magic known to mankind. She's able to perform feats that would make the entire monster kingdom tremble in fear. She may even have enough magical prowess to tip the scales of power between the already tentatively peaceful neighbors.
Reluctant to violence, but hand forced with the protection of his recently unearthed populous, King Asgore levels the humans with an offer. Hand over this Blue mage to be paired with his Son, in a show of unity between their nations. Eager to breach the tall walls of their secret kingdom for information, Cadoc agrees.
Unbeknownst to all, there's a third party at play, who's been intently watching the Head Mage's daughter as she spends her time in the meadow between their lands. She's nothing like everyone says she is... and soon he finds he's fallen for her—hard.
When the Prince agrees to switch places with him for the courtship ritual, her secret admirer will have to win her heart, and Soul, sight unseen. But can he keep pretending he's someone he's not?
Series
- Part 5 of The Butterfly Effect 💚💛🧡💜💙🩵❤️
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What a Coincidence by Sketchygamer000
Fandoms: Undertale, Undertale AU - Fandom, Mafiafell AU - Fandom
10 Feb 2026
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You (the reader) are running late for work! You ended up turning off your alarm clock before deciding to sleep in a little longer- which was a BIG mistake, now you have to rush your way to the subway to make it to work on time!
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Something followed you home from an alleyway. Can you maybe grow some survival skills, please.
Series
- Part 14 of Reader Inserts
- Part 1 of Oneshots
- Language:
- English
- Words:
- 1,707
- Chapters:
- 1/1
- Hits:
- 1
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Summary
The first story of the series. Follows our protagonist through his rebirth and until he (re)enters the Multiverse.
In case you couldn't tell I suck at summaries, I'll get better eventually, probably.The Major Character Death Warning is temporary and happens multiple times btw, it is a little confusing at first but you will understand as the story continues.
Prologue: Rootverse's Collapse (1)
Arc 1: Rebirth (2-7)
Arc 2: Meeting Familiar Faces (8-80)
Sub Arc 2.1: The Teeth Incident (20-41)
Sub Arc 2.2: The Magic Incident (42-50)
Sub Arc 2.3: Time For Shopping (51-59)
Intermission: 1st Major Time Skip (60-62)
Sub Arc 2.4: The First Human (63-80)
Arc 3: The Tragedies That Follow (81-?)Series
- Part 1 of Miseries of Metempsychosis
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DELTAGOON by DEMONHEART1225
Fandoms: Deltarune (Video Game), Undertale (Video Game), Homestuck
09 Feb 2026
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The Corruption is spreading. With each destroyed AU, Nightmare gains more power. Dream has given up hope that his brother can be saved, and now his only goal is to destroy the Corruption once and for all. For if he doesn't, there won't be a multiverse anymore, and the Corruption could spread to nearby multiverses.
It was thought, since the beginning of the Corruption, that Error was part of it, but Ink discovers that's not the case. The Truce was never broken. But when he goes to find Error, he finds something much worse.
Not everyone fears the Corruption though. Some believe that it's a way to cleanse the multiverse, to make it new. Killer, who serves the Corruption, holds out hope that this new multiverse will be made just for him. That this is all happening because the Corruption favors him. He doesn't know he's just a pawn in a game beyond his comprehension. -
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29 days of short stories based on the Febuwhump 2026 prompts, written every day, on the day. Chapter Index inside with Prompts, Summaries, Major Characters & Warnings for each day
DAY 9: False Memory
Asgore
Maybe it was a side effect of sleeping so close to the SOULS but sometimes he’d wake up thinking his dreams were true. -
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You're a hardworking girl that has gone through some shit, maybe too hardworking. Okay, maybe your overworked with no time for yourself. But thats okay! At least you have your cozy bed to go to and-- you're not home. Why are there three skeletons chasing you? Whats with the sludgey tentacled one?
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Shattering the Prophecy by Nate18thegreat
Fandoms: Deltarune (Video Game), Undertale (Video Game)
09 Feb 2026
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Kris and Susie slowly fall in love while trying to defeat the knight and the prophecy
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Dust scared you. He scared you more than all the rest of his team put together. That being said, you were going to help him through this little mishap even if it killed you.
Series
- Part 2 of Turned Into An Animal (Sentence Prompts)
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In the year 40XX humans and monsters have successfully established colonies in planets far away from our own, in other galaxies. Polaris VI is one of the many missions to deliver supplies to a space station overseeing one such colony. With Cross as the commander, Killer as the pilot, Dust as the medical staff onboard, and Horror as the engineer, this mission should be successful and be back on earth ten years after departure, as scheduled… little do they know this mission will change their lives forever.
Updates every week!
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PANDEMONIUM by Hysterically_Gone
Fandoms: Undertale (Video Game), Deltarune (Video Game)
09 Feb 2026
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What causes an uproar in the crowds. 𝗥𝗲𝘁𝗮𝗹𝗶𝗮𝘁𝗶𝗼𝗻? The revenge of those who live in poverty? 𝗙𝗲𝗮𝗿?
𝗜𝘁'𝘀 𝗬𝗼𝘂, a princess. The only human princess in all the lands. The humans plead for forgiveness, begging the King and Queen to not take their only hope. Their saviour.
They obligated.
In return she is to be betrothed to one of the Skeleton lords.
* 𝗬𝗼𝘂 𝗳𝗲𝗲𝗹 𝗲𝘆𝗲𝘀 𝘀𝘁𝗮𝗿𝗶𝗻𝗴 𝗮𝘁 𝘆𝗼𝘂 𝗶𝗻 𝘆𝗼𝘂𝗿 𝘀𝗹𝗲𝗲𝗽
- Language:
- English
- Words:
- 394
- Chapters:
- 1/?
- Kudos:
- 2
- Hits:
- 8
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Summary
Chance meetings between one particular SOUL and many of the faces around Hometown, written as a collection of "what if [character] met the SOUL?"
(Basically, taking the idea behind Chapter 21 of "Assorted Green(text)s" and "Heart-to-Heart" and applying it to a selection of other characters.)
Series
- Part 3 of Gray's (Usually Short) Stories
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Trading her freedom away for the safety of another, this book loving woman finds herself in a strange castle, guarded by the castle’s inhabitants. Unbeknownst to her, these four have another fate in mind for her… they’d agreed to her deal in hopes that she could break their master’s "curse".
With a heart as firmly guarded as their realm, the dark beast that reigns over the castle is resigned to a future alone and unloved. With a job as nasty as his self image, there’s no way this kind stranger could ever care to look upon him… right? Can a caring hand light a fire in this realm of permanent midnight?
A tale as old as time, told in a new way.
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Valentine's day special except it starts on the 1st and ends on the 14th! 14 oneshots? Sending love to all with this special!
Series
- Part 7 of Regular High School Life (Undertale au)
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You're a journalist who recently moved to Ebott city after being hired by the town's column. It was supposed to be just another murder case you had to cover, another story to meet on time. But the investigation starts to turn your life upside down: what was work becomes a game of cat and mouse between you and the killers. Soon, it's impossible to tell who's hunting whom—because both sides are obsessed with each other.
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There are a number of little ideas within my head—or strikes of inspiration from fellow Undertale creators—that I'd love to write about! But they need a home...
Welcome to Reader x Everyone in the Multiverse!
I don't have a schedule, but I try to post often! I hope you enjoy these stories :3c
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this fanfic is for fun, everyone in the story has consented to their position.
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Red wakes up in an AU that's not his own. After being taken in by Sans, his adventure begins. Drama, violence, silly insults, actual serious moments, romance, and more!
I don't know what tags to use, so tag suggestions are welcome!