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Sick To Death (Of Me Chasing You) by CrossoverAU
Fandoms: Undertale (Video Game), Alice by Heart - Sheik/Sater/Sater & Nelson
23 Jun 2025
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Summary
Raine was sick. Really sick.
The kind of sick where, despite not knowing what she had, she knew she didn't have long left.
Her best friend Sans knew that too.
Not wanting her to live her last moments trapped in her house, Sans read her one of her favorite stories, Alice in Wonderland.
While chasing her through the pages, Sans learns that he loves her too much to let her die.
Will he be able to let her go or will he try to selfishly stop the clock?
Aka an Undertale/Alice By Heart crossover fic because I couldn't find one
Note: knowledge of Alice By Heart isn't needed to read this fic!
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Long ago, two races ruled over Earth: Humans and Monsters. Religion and fear of differences troubled the fragile peace on which both species were living so far. A war for faith and honor soon engaged between them. Long. Endless.
Sans and Papyrus, two young skeletons brothers, sons of the Royal Scientist, lost everything in the rage of the fighting: their home, their family, their childhood. During a human attack, they suddenly found themselves delivered to bullets and bombs, all alone.
Both of them started a journey in the devastated landscapes of the end of the war to join Mont Ebott, where Monsters are preparing for a last battle. But could two kids survive by themselves in the wild and without any help?
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An abandoned Paperjam and Gradient find themselves taken under the roof of the Guardian of Positivity and his absent-minded son.
Good thing it’s only a temporary thing.
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A mysterious young woman wakes up in the underground, but this isn't her first rodeo. After reconnecting with her friends, she chooses the player name 'Koala' and her journey begins - for what feels like the 1000th time. When 'Koala' finds her human friend - a young child who she has yet to learn the name of - things aren't quite right at first. They both try to shrug it off and focus on breaking the barrier to free their friends. However, as memories of a darker timeline start to come back to Koala, she suspects the answer to their conundrum might not be so simple. Hints start to pile up that there may be an extra passenger hijacking their souls, but is this strange entity to blame or is it trying to help them?
Guilt is a sort of Alternate Timeline where The Player becomes a fully diegetic character. Inspired by the old "Who's to blame for bad choices?" days of the fandom, this fic will point its finger at everyone. The answer may be not so cut and dry when The Player isn't aware of her own role in the universe.
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(desc too long for ao3 oops)
Undertale#297. Glitched, unstable, banned from ever being contacted by Multiversal visitors out of fear that it could get worse. But no one considered that the Sans within would reach out. It was rare for an AU to figure out AU travel by itself, after all.
And yet, Check figured it out. But to jump immediately into a Multiverse with no sure way back and no knowledge of its happenings? No, he had a proclivity towards impulsivity, but he wasn't an idiot. Measure once, check twice, after all. So he took his time. Figured out how to target the portals, learned how to return home, refined and slimmed his design down until it was handheld, and most of all, he learned the politics of the Multiverse.
But something about it didn't sit right with him. He'd been Dust and he'd been Killer, so why were Dust and Killer spreading "senseless" negativity? He didn't know, but honestly…he didn't care.
He saw his copies, and his only thoughts were those of mischief. It was an awful idea, and he'd definitely get hurt, but…
Well, a bit of harmless impersonation was always fun.
Or; Check travels universes for the lolz and indirectly stops an eons-long war by doing almost nothing
Series
- Part 2 of Checkverse
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Two very apathetic individuals working in the same environment, constantly in each other's presence, constantly getting into arguments and, constantly at each other's throats. They despise each other........ or so they've kept telling themselves.
"They hate each other"
"No they don't... Not really"Dreamswap X Female Reader
I'll have a link to my Spotify account with a playlist. Specifically, if you would like to listen to something while reading, the playlist will consist of songs that fit the vibe for this story, the playlist will be approximately five hours long.
Heavily inspired by the fanfiction 'Rivalry' Author- honkhonk5
You can find it on Quotev-Please read the first chapter-
🎉THANK YOU AND ENJOY🎉
⚠️ WARNINGS⚠️
ALL CHARACTERS ARE 18+
HARSH LANGUAGE
MENTION OF ABUSE
MEANT FOR MATURE AUDIENCES
SEXUAL THEMES
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The weather was colder in Snowdin- far past what it should be for the AU's normal- but it was simply a heavy winter. Nightmare had long put aside the question of seasons underground, he could never get the time or resources to properly look into it and only knowing a little bit of it would drive him mad. Though he hid in the treeline, there was no doubt in his mind that the starved monsters had already taken notice of his presence.
Series
- Part 1 of Homegrown AU
- Language:
- English
- Words:
- 926
- Chapters:
- 1/1
- Hits:
- 9
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Please Stand By (I’m Processing My Feelings) by hidlyl
Fandoms: Deltarune (Video Game), Undertale (Video Game)
23 Jun 2025
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What happens when a chaotic, caffeine-fueled TV-headed journalism student crosses paths with an overly ambitious aspiring salesman? Expect awkward conversations, questionable decisions, and feelings neither saw coming.
Spoiler: it’s way messier than either of them expected.
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A Third Chance by NullVol
Fandoms: Undertale (Video Game), Undertale Yellow (Video Game)
23 Jun 2025
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Very few people get a second chance at life, but what if someone had the chance at a third?
Tags are subject to change.
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The arrival of monsters from Mt. Ebott threw society into disarray. Not only was a previously unknown species discovered, but the shattering of the barrier released centuries of magic back into the world. As society struggles to move forward from their bad history with monsters, MOPA, “The Monster Obligated Placement Act” was formed. As such, all mages must provide housing for a minimum of one year for a MOPA designated monster family.
Having jumped through enough hurdles to kill a horse, you are finally forced to house a family of your own.
Between eight skeletons of varying color schemes, your reluctant past, forgotten dreams, and a desire to make up for your sins, you are forced to use your wits in a world breaking at the seams.
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Fresh didn't think lamias existed that is until getting caught with a fight that their life turns for the better
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This relationship shouldn't have happened but it did and the two of them were happier for it
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My moral code is entirely vibes-based and i may commit hateful acts about it by InkyOverlord
Fandoms: Undertale (Video Game)
23 Jun 2025
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Summary
Euphoric really hated his brother, hated how he could feel love, happiness, joy.
He wants nothing more to make him feel how he feels
Series
- Part 14 of OCs and shameless self insert junk
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You were always so warm.
Too bad you didn't exist.
+ + +
Living in Snowdin could be rough. With his nagging younger brother, the 'kill or be killed' mentality, and the human runt who kept coming around to release them from the Underground, just to throw them back in again because something was missing - he was tired. Exhausted even.
So, when he starts dreaming of a lover - someone to hold - someone soft and warm and humorous, he starts losing his typical edge. Even though you're just a dream, he's keenly aware that there are somethings that no one's taught him before... but you have.
Papyrus has started to notice something's... off. And so has Frisk.
Series
- Part 1 of Sweetheart Underfell Sans
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You're living a quiet life in Ebott City, content to finally be settled in one place and living alone for the first time, when the universe decides to spice things up. Suddenly, you find yourself without a job and in need of a new apartment. Inevitably, you follow a strange advert to a house at the edge of the city, and soon you find out that it hides much more than bones. What your new roommates don't know: you've got some skeletons in your own closet, and are willing to keep those safe at any cost...
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You babysit Frisk for extra income whenever Toriel has to stay working later hours at her new school for monsters and humans.
Until, one day, she calls saying she can't make it, and that someone else will come to pick them up.
That's when you meet him: a skeleton monster looking as haggard as a shipwrecked man, and smelling of smoke and booze.
You offer him some dinner and a cup of coffee over some small talk, and then, he gets comfy on your couch.
It feels bad to ask him to leave, so he ends up staying the night.
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(Takes place during Chapter 4)
After Church, Toriel goes on a little walk. She spies Noelle, crying by herself. She decides to take Noelle along with her on a trip to the grocery store.
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A fanfiction set after the Pacifist route. The characters you love are here : growing, evolving, finding their place on the surface. But with change comes the unexpected. And nothing will unfold quite the way you imagine.
New faces will appear too, including a young human woman who gradually becomes part of the group, discovering them, and herself, through fresh eyes.
This is an immersive story. Unpredictable. Sometimes funny, sometimes emotional, sometimes unsettling. Chapters will shift in tone and length, often illustrated, and with interactive moments where YOU get to decide what happens next. Just like in the game, you’ll have power. Or at least the illusion of it.
Forget what you know. Forget what you’ve read. Set your expectations aside and take the plunge.
- Language:
- English
- Words:
- 7,244
- Chapters:
- 3/?
- Hits:
- 3
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Arkham's Least Wanted by Batty28
Fandoms: Batman - All Media Types, Batman: Arkham - All Media Types, batman fandom
22 Jun 2025
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Summary
Abandon all hope ye who enter here.
Two Months after the events of C Listers, Arkham City is up and running and things, as always, are going to go from bad to worse.
Series
- Part 2 of C Listers: Arkhams Least Wanted
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A stand-up comedian with a bad temper and low motivation ends up falling for Frisk's homeroom teacher, her irritatingly soft voice, and her smug attitude.
Who would've known?
There's probably a lame old joke hidden in there somewhere, but he doesn't give a damn about that right now, so maybe come back later, and he'll think of something.
(Mostly told from his perspective, but there will be chapters featuring Second Person POV.)