17 Works in Smart Sans (Undertale)
Listing Works
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Spending Spring Break Underground by 4Trixs_Animations3
Fandoms: Undertale (Video Game), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
23 May 2025
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Once upon a time many centuries ago, the world was ruled by two species: Humans and Monsters. Both of these creatures thrived together using their special talents to help one another. That was until the humans declared war on the monsters out of the blue. This led to the monsters to be banished beneath a mountain.
But rest well when I say the humans suffered their karma. Without monsters they soon lost their magic, along with their way of life. They developed their own powers called quirks, with this power came the raise of heroes and villains. Quirks were quick to spread until only 20% lacked them.
It wasn’t long before magic and monsters were reduced to legend. This led many to climb the mountain to see if the legends were true, only to never return. This was because of the heartbroken monster king who put a bounty on every human who fell.
When the last human fell, the monsters were ecstatic. Finally they’ll be free to wander the surface and feel the sun and the rain again! But unbeknownst to them, they have become even more trapped than they had before. With each reset the monsters were forced to live the same day over and over without anyone knowing ... .Well, almost everyone.
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Gaster Industries: Under the Spotlight by RTNightmare
Fandoms: Undertale (Video Game), Gaster Industries AU (Undertale)
25 Jan 2025
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Sans Aster didn't expect to find his Soul Mate (a toddler) in a destroyed world that mirrored his own. He didn't expect to need to wait twenty years to claim her as his. He didn't expect that while he waited, he would become the CEO of his own company, Gaster Industries, and his world's only decillionaire. He didn't expect to be famous and have millions of fangirls come after him despite being a skeleton. He didn't expect to become the strongest monster because of his toddler Soul Mate's actions. And, obviously, he didn't expect a lot of things to fall apart when he met his Soul Mate again at his company's fifth anniversary twenty years later. But he'll be damned if he lets his life fall apart again like it did in the underground. This time, he's got too much to lose and a reason to fight.
Series
- Part 4 of Under the Spotlight
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Gaster had lost count of the days since he first entered the Void, but since that day, he had watched and analyzed each and every timeline there was. Just a few more resets, he calculated, and the timelines would start to mix. He had to make things right, stop the resets, and to do that he had to leave the Void.
UPDATE 2024: NEW EPILOGUE!
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Papyrus... might have messed up.
To be fair, it wasn't like he had a manual or anything for how to take care of a babybones (he'd looked, but had yet to find one), and Sans certainly never seemed to mind.
Nothing even seemed out of the ordinary... until a throwaway comment by Alphys made Papyrus realize exactly how poorly he'd been taking care of his precious baby brother, and he was determined to fix it- whether Sans liked it or not.
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I Am Frisk: An Undertale Story (Worm CYOA V6) by TempestAlter2077
Fandoms: Undertale (Video Game)
25 Jan 2024
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After waking up in the body of the protagonist of Undertale, the newly named Frisk has some growing up to do. He wants to ensure everyone gets home safely, but how can he do that when he can't even SAVE himself.
*Definitely Spoilers Below*
The MC wakes up in frisks body but without the power of Determination. He will have to fight and outsmart Flowey who still has control over the timeline in order to get the good ending.
Used Worm CYOA V6 to come up with the basic premise of the story. The first part will almost be 100% Undertale.
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The underground is divided, gripped by an invisible war between Humans and Monsters. The Humans have turned to chemical warfare to silently, and violently, pick off the Monsters one-by-one.
Lieutenant Sans of the Royal Guard did his best to protect his younger brother. To teach him that no-one can be trusted, and that danger lurks around every corner. Too bad for Sans then, that Papyrus is a skeleton who wants better for the world.
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sans and alphys had been friends for forever, and through lab internships, deaths of friends, mental breakdowns, and questionable experiments, they will always have each others backs.
(sans and alphys centric but ill focus on all characters as much as i can.)
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- Part 1 of Skewed Realities
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Your house gets plagued with skeletons because sans is illiterate and ink is an idiot.
Abandoned because I can't seem to muster any motivation for this anymore.
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Shadows Of Remorse by BubblyShip
Fandoms: Undertale (Video Game), Creepypasta - Fandom, Marble Hornets
10 Apr 2020
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(This is the sequel to Sans' House Guests, you should go read that before you read this because you will be confused on what the heck is happening! Read the first story here: https://archiveofourown.info/works/22536880/chapters/53854030)
After the events over the months, Sans had finally called out to Slenderman and was taken to the mansion, where he would finally find peace with who he was. Surrounded by friends, he was going to be happy finally.
Running from the law now, and taking care of serial killers, it was an odd joy for him. But he was still happy, and that's all that matters.
However, others from his past lurk beneath their shadows of remorse, and Sans has to deal with more troubles.
Series
- Part 2 of CreepyPasta x Undertale
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maybe these two wrongs can make a right. by youtrashqueen
Fandoms: Undertale (Video Game)
19 Nov 2019
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a few years after the barrier fell, when monsters and humans were finally coming together, a gruesome incident forces mankind to rise against them once again. this time, its best chance at sending them running are the hunters, humans belonging to an organization specializing with dusting the things that go bump in the night. you're one of those hunters, tasked with a mission that might turn everything you believe in upside down and inside out. but you were taught better than that and you'll be damned if you let anything affect your resolve.
but sometimes, you come to notice, the real monsters are the ones wearing the masks.
it's...better than it sounds. and it will pick up after the first chapter, which is a bit of a bumpy ride. put this up to see how many peeps like this idea and roll with it if I get enough positive feedback. thanks!
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You're a pretty normal human. Outside of the constant fatigue and the fact you're closer to monsters than you are most humans. One day at work, you're approached by a giant skeleton looking to help someone with depression, and you offer some books on the topic and someone for the person to talk to. You end up helping a giant, 6'7", edgy Sans with his issues. Oh, and you two fall in love along the way.
Your chance meeting with Papyrus sucked you into a wild ride of friendship, angst and romance.
Oh, and spaghetti. Lots of spaghetti.
(Currently rated Teen and Up for swearing, rating will change as there will be eventual smut.)
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Sans has always been running. Whether it's from bullies or from himself, it didn't matter to him. Now he's made a choice, a choice that would change his life forever.
Sometimes you need to know when to give up, in order to see where you're going next.
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the conversation that might happen when he met sans by Crazybutstillok
Fandoms: Undertale (Video Game), ??? - Fandom
21 Sep 2018
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the first meeting
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Genocidal Pacifist (Complete) by Serena Walken (SerenaWalken)
Fandoms: Undertale (Video Game)
02 Jun 2018
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Alphys remains quiet.
Frisk is imprisoned in an unescapable hell above the surface with her children and her only friend in the world, Flowey. She should be there for the rest of her life. That is until the day the monsters learned the truth about the 'Pacifist Child'. Armed with new knowledge of not only Frisk, but some heinous things mankind itself has done, Asgore receives a peace offering he can't refuse . . . while Alphys remains quiet.
But when Sans finds out that Frisk's children are actually his own little brothers, the game of righteousness Asgore wants to play becomes dicey. And things will only get worse until Alphys no longer remains quiet.
Que Sera, Sera . . .
Three Part Timeline Story -
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don't lie to a small child when their life is on the line, don't laugh at a matter that is no longer time.
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Frisk Sacrifices their selves to break the barrier.
But what happens if Sans isn't ready to let go?Series
- Part 1 of Sorrow before Peace
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You weren't "normal" by any means, but your uniqueness wasn't exactly obvious. That was, until the monsters came, and your first instinct was to protect them and want to be included with them. You were raised with stories of magic and monsters and the fabled seven human mages, but you never knew how real they were until now. Maybe you should look back and remember what your grandmother always said about your SOUL...?
But first, figure out WHY YOU'RE SUCH A CLUTZ; And just HOW did you end up living in a large house with a moderate amount of the monsters that emerged from the mountain.
And what do you plan on doing when you inevitably fall for one of them?