1 - 20 of 40,874 Works in Sans (Undertale)
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Just when her story was about to become a forgotten tale, Queen Toriel Dreemur retruns to the Underground. She shall make her way from the Ruins to the Castle, and discover the new order reigning over her kingdom.
What could have pushed her out of her self-imposed exile?
The Monsters would be curious to find out, if something strange and threatening wasn't spreading amongst them.
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After Basil’s death, Sunny runs towards his home in an attempt to end it all, but Aubrey follows him and she prevents him from dying. Sunny tells her the truth and now they have to face it together.
After moving, they find themselves camping until something happens and now the two will travel together in order to escape the Underground filled with creatures that were only believable to see in fantasy books.Notes:
the Undertale tags are there because I want to make an Omori x Undertale fanfic, but there won't be anything related to Undertale during the first two chapters except for some references to Mt. Ebott and its legend, but around Chapter 3 or 4 onward, the Journey through the underground will begin!
So stay PATIENT!Series
- Part 1 of OMORITALE: Fallen Down (Fan-Series)
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UNDERTALE: Surface Tension by Seraph_UTST
Fandoms: Deltarune (Video Game), Undertale (Video Game)
29 Sep 2025
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A long time have passed since Frisk led monsters to freedom. Now sixteen, Frisk finds themselves presenting that very story to a class full of humans and monsters
You'll meet Frisk, now sixteen, free from your control, and still carrying the weight of their choices, doing their best to bridge two worlds with kindness and honesty.
Seraph, your new vessel, a quiet, artistic boy of unknown origin who lives with Gerson and looks up to Undyne like a big sister. His drawings are oddly prophetic… and sometimes, he can feel what others feel.
Lapin, a rabbit monster new to the surface and overwhelmed by the change... maybe even a little lonely.
MK, once known as Monster Kid, now a confident chatterbox still idolizing Undyne (and maybe trying to figure themself out).
Vesper, a bat monster with a protective streak and a soft heart they try VERY hard to hide.
Aiden, Seraph’s loud, loyal best friend, a jokester who’s like a brother to him, always ready to stir up trouble or crack a smile when things get heavy.This is a story about what happens after the story ends. About choices, big and small, that shape who we become.
And sometimes… it gets weird.
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OVERWRITE Aftermath - Chapter 1: The First Domino by OVERWRITEDimp
Fandoms: Sonic the Hedgehog - All Media Types, Undertale (Video Game), Dragon Ball, Five Nights at Freddy's
29 Sep 2025
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We all like crossovers, right? They couldn't possibly get out of control...right?
After a chain of events lead to Sonic and a few others getting assimilated into the world of XTale, many changes occur as the rules of the Omniverse change to keep itself stable, which sets off a chain reaction that will change reality forever.- Language:
- English
- Words:
- 4,720
- Chapters:
- 3/?
- Hits:
- 2
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On the day of their 13th birthday everyone has a name appear somewhere on their body. A script different than their own, but still familiar and comforting nonetheless. It's said to be your soulmates handwriting and, when you make physical contact for the first time, it's to change to the color or their eyes. Or so the rumor goes. But everyone knows that's just an old wives tale since finding yours is so far and few between.
But then there's Fanchon. What the hell is she supposed to do with 12 soulmates?? At least her odds are better than most...
- Language:
- English
- Words:
- 1,204
- Chapters:
- 1/?
- Hits:
- 2
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It’s winter and the city has been covered by a nice blanket of snow. That means it’s a perfect day for a snow day! How dare Dust not know what a sled is! Time to go to the nearby park and have some snowy fun.
Series
- Part 10 of Lighting up the dark
- Language:
- English
- Words:
- 5,668
- Chapters:
- 1/1
- Hits:
- 1
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He won't let her go. Ever. Even if she wanted to go, he'd rather kill her. And who knows, he might kill her either way.
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You really should try living a little, but it's kind of hard when you're literally Death. The other immortals might be your best shot at happiness, even if it'll probably look really bad to outsiders that the three dark sides of the multiverse's balances are hanging out.
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Sans is hired by King Asgore to explore the uncharted areas of the Underground, places left abandoned and empty due to the passing of time, and report what he encounters. As he uncovers bits and pieces of these forgotten lands, old memories and wounds begin to re-open, as the duo try their best to search for a place they can call home.
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lets make it quick
There is a mage, Powerful mage, 7 great mages that sealed monster in the mountain Ebott, The great mage cannot die because their ability and magic in their body, no sickness, curse can kill them, unless you kill them physicaly like stabbing, burn, Etc. the great mages name them self The lightners mage, (beacuse why not), They help on the war, make their kind (human Obv) won the war, but then the disaster happened to themand Our reader (YOU) are the only one that survive, you decide to hide away, but after a long time, you deiced to make orphanage, so you can take care of those precious child of the useless, worthless and trash parents, what a kind of you, You have been running an orphanage for hundreds of years, and of course every 60-80 years you have to change your appearance and make yourself look older gradually over hundreds of years, because a mage of your level cannot do that naturally, you can't even die. To keep your orphanage running, you are doing it this way... better than being burned and destroyed because you are discovered as a mage... right?
But guees what... The baried you guys Made, it decide "hey let's broke and give this mage a bit of life" good luck -
Undertale Boyfriend/Girlfriend Scenarios by prettypinkperfect
Fandoms: Undertale (Video Game)
29 Sep 2025
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✨Monsters✨
- Language:
- English
- Words:
- 65
- Chapters:
- 1/?
- Hits:
- 15
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Uncanny encounter by ball_of_light
Fandoms: Undertale (Video Game), Deltarune (Video Game)
29 Sep 2025
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There was something… strange about that one customer.
Scratch that, there was something absolutely terrifying about that customer.
The moment they walked through the automatic doors of the convenience store, Sans knew there was something wrong with them.Or: Deltarune Sans's first encounter with the multiverse
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The ABC’s of Intimacy by SinMama
Fandoms: Undertale (Video Game), Invader Zim, Villainous (Cartoon), SCP Foundation, Styx: Master of Shadows, Of Orcs and Men, Gravity Falls, Fallout (Video Games), Five Nights at Freddy's, Rick and Morty, Bendy and the Ink Machine, Ben 10 Series, Warhammer 40.000, Danny Phantom, Silent Hill (Video Game Series), Borderlands (Video Games), Hellboy (Comics), Serious Sam (Video Games), Destroy All Humans! (Video Game), Helluva Boss (Web Series), ULTRAKILL (Video Game)
29 Sep 2025
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[[WARNING EXTREMELY IMPORTANT: Due to Ao3’s new tag limit, I deleted well over 233 to publish and the work is exactly on 75, a lot of characters in this will not be mentioned, due to this check out the chapter index however, your favourite character may be in there but not mentioned due to the small tag limit!!]]
An A-Z list of things that’ll be talked about as informative information on the sexual intimacy of characters.
Curious how a character may be in bed? Come here to request a character you’re curious about or just see all the other characters I already have written.
See how your favourite character is during intimate moments.
Join The Discord today!Discord Server:
Series
- Part 1 of ABC’s of Everything
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You had been playing an immersive VR game: The World Of Aspenheim. However, after 10 years, the servers were about to close and to give your last farewells, you decided to stay online until the servers kicked you out. In the end, you fell asleep on the golden throne...
Only to wake up still logged into the game!? And why couldn't you log out!? And who was the one knocking on the door!?
"YOUR HIGHNESS? ARE YOU AWAKE?"
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Your world was destroyed. Luckily for you, you met three odd skeletons that can help you get revenge.
Will you be able to eleminate the "Bad Sanses" or will the Dark Side tempt you?
or
You flirt with the Bad Sanses to get close for revenge but it backfires because they're dorks and they're oddly fascinating!!
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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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Every year on the anniversary of the Truce between the Bad and the Star Sanses Nightmare hosts a party at the castle for all to attend. We meet the players in the party.... At the end an unexpected guest to the multiverse makes their apperance....
The tags will constantly be updated as the story goes
Series
- Part 2 of Into the Multiverse
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Art from: TumblrИнк и Эррор – два извечных врага, ненавидящих друг друга, но за маской бесконечных битв и разрушений скрывалась тайна. Все началось с невинного предложения посмотреть вместе сериал за коробкой шоколада. Постепенно, день за днем, между ними вспыхнула симпатия, переросшая в нечто большее. Теперь они – любовники, скрывающие свои отношения, боясь осуждения и непонимания.
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It's been three years since you fell into the underground and found a family among the monsters of the Ruins. You love your life here with Mom, your ghost buddy Blooky, your prickly friend Flowey, and the host of Ruins monsters who have accepted you as their own, but things can't stay this way forever. Your friends deserve to see the sun, and there's a prophecy to be fulfilled and a barrier to be broken. Your determination pulls you onward.
The only trouble is that you'll have to make it through an underground full of monsters clamoring after the red SOUL in your chest, and each day as circumstances become more dire they lose a little more hope. This is a more desperate underground than the one you landed in. The odds don't look good for one pacifist child with a stick.
Of course, you aren't completely outmatched. You've spent the last three years training for this moment, and you don't intend to let anyone hit you.
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After a traumatizing near-death experience, Cross, and the gang, have to deal with the fallout. It brings some changes, not necessarily bad ones.