1 - 20 of 38,112 Bookmarked Items in Sans (Undertale)
Navigation
List of Bookmarks
-
Tags
Summary
Sans' family is worried for his safety now that they're on the surface. Undyne proposes she trains him once a week to get his stats up.
Sans proposes a new deal.
- Language:
- English
- Words:
- 6,841
- Chapters:
- 1/1
- Collections:
- 3
- Comments:
- 83
- Kudos:
- 3,040
- Bookmarks:
- 635
- Hits:
- 20,903
-
Bookmark Notes:
amazing I LOVED it
-
Bookmark Notes:
Aww Undyne&Sans bromance hell yeah
I love how Sans is chill in this
-
Tags
Summary
A sweet little series set in a world where monsters had been captured from the beginning instead of shoved underground.
Eventually, as the years and generations pass, both humans and monsters slowly forget the monsters were ever free.
We follow the story of an aging little zoo hoping to expand and take in a few monster pups. And the stories of several monsters who find themselves being transferred to the place.
-
Bookmark Collections:
-
Tags
Summary
Y/n is a basic college student, attending classes, working part time, and camping on their school breaks!
No, it's not anti-social, it's just a fun hobby that takes away from social time.
And who would pass up a chance to go camping on the mysterious Mt. Ebott? Not you.
Now you are in a cave with a talking flower, a crazy but kind goat lady, and no way home.
Good thing you have someone to speak to so that you don't lose it.
And their voice is so nice... You might even have a thing for them.
Well, he's starting to get a thing for you too.Inspired by: poetax - the skeleton games. Team UF - Underfell the video game. Instantpuppypaper - Ruins!AU comic
Series
- Part 1 of RuinFell
-
Tags
Summary
Your name is Y/N and you had a wonderful life! NOT. your boyfriend was an abusive, racist prick that you couldn’t seem to get away from. He hated the Monster kind and anything to do with them, so that's why you were now at the famous Monster owned business called Grillby’s just to spite the asshole. You set there drinking away all your self loathing for staying with him just for feeling bad for him. He would always cry and apologize when you wanted to leave and you would always stay.You wanted out. You had enough and missed that single life, the question is, how do you escape?
You got your answer when a large, edgy, and hot skeleton monster walks in and sets beside you. As soon as your eyes meet his red eye-lights, you feel a shock go straight to your very Soul. you knew what this meant with how often it came up now that Monsters came up from the underground.
You had found your Soulmate.
- Language:
- English
- Words:
- 43,320
- Chapters:
- 22/?
- Comments:
- 280
- Kudos:
- 1,227
- Bookmarks:
- 229
- Hits:
- 29,761
-
Bookmark Collections:
-
The Void Mage and The Skeleton by transgirlnamedafterarock
Fandoms: Undertale (Video Game)
26 Sep 2025
Tags
Summary
A number of years after Frisk leaves the underground a void mage living on Mount Ebott stumbles i̶n̶t̶o̶ upon a entrance to the underground searching for magical materials. Various encounters and violent realizations occur as she makes her way through the underground doing her best to save everyone she can. Forced to accept the truth that things are much worse for monster kind than ever before, she will do everything to save a people from extinction. Can she do what she needs to in time? Or will she be forced to come to the conclusion that its much to late for anything to be done.
-
Bookmark Collections:
-
Summary
A Series of Sans/Reader Fanfics that all explore the far reaching effects of Frisk's decisions on their trip through the Underground. My goal is to complete one for each Soul type. There may be a few different AU's, but mainly Classic and Underfell as those are my favorite to explore. I really enjoy Sans as a character so most of these will center around his development and experiences, but I very much enjoy world building as well! Most if not all of these will be rated Mature or Explicit, but save for A Done Deal, I seem to prioritize lots of plot and maybe a couple sex chapters. Whoops. Enjoy!
Completed Souls
- Bravery (Underfell; Geno Run) (Includes Epilogue One Shot)In Progress Souls
- Kindness (Undertale Classic; Given Up Run)
- Justice (Underfell; Empress Undyne Neutral Run)
- Patience (Undertale Classic; True Pacifist Run)Not Started Souls
- Integrity
- Perseverance
- Determination- Words:
- 256,957
- Works:
- 5
- Bookmarks:
- 2
-
Bookmark Notes:
I wanna u wanna we wanna
-
Tags
Summary
You’re just an average, happy human, going about life, trying to forge your way in the world. Fortunately, you’ve landed a nice job that pays well, you’re steadily and reliably working your way out of the debt you gained from moving to the city, and you found a great apartment (with a chill roommate, Sans, a polite skeleton monster with puns up his sleeve and an indecipherable gaze) for surprisingly little rent.
Everything’s fine.
And then, without warning, two more skeletons seem to show up out of nowhere at your and Sans’s shared apartment. The first to appear is Red, a hot-blooded, sharp-grinned alcoholic who isn’t shy to share his less than savoury intentions with you, with crude gestures and pick-up lines galore.
... And the second is a tall, broad, but quiet skeleton who immediately goes by the pseudonym Skull, sporting a huge crack in his head and a single, engorged red iris, that never seems to stop staring at you.
You’re not sure why both of them won’t leave you alone, or why Sans seems so desperate to stop them from interacting with you... But hey, what harm could come from it?
Series
- Part 1 of Aggre(g/v)ation
- Language:
- English
- Words:
- 180,230
- Chapters:
- 42/42
- Collections:
- 5
- Comments:
- 3,429
- Kudos:
- 8,268
- Bookmarks:
- 1,490
- Hits:
- 228,453
-
Bookmark Collections:
-
Tags
Summary
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?"
- Language:
- English
- Words:
- 179,550
- Chapters:
- 20/50
- Comments:
- 199
- Kudos:
- 450
- Bookmarks:
- 91
- Hits:
- 11,794
-
Bookmark Notes:
Chpt 16
-
Adopting a Nightmare (Literally and Figuratively) by KaiSayz
Fandoms: Undertale (Video Game)
12 Feb 2021
Tags
Summary
On a semi-good day, you and your sort-of-twin find a Bitty Adoption Center and pick up some rescues.
Getting them to trust you is the hard part.
(Slow updates, criticism is welcome. This is a half-baked idea with no planning)
-
You Can't Make An Emotionally-Developed Papyrus Omelette Without Breaking A Few Limit-Eggs by KachiggaTHUNDER
Fandoms: Undertale (Video Game)
05 Oct 2020
Tags
Summary
Papyrus faces everything with a positive attitude, and never gives up once he's been asked to do something.
As nice as that is in theory, it can lead to problems in practice. Problems such as strained friendships, personal doubts and damage to one's personal possessions.
Still, no problem can make the Great Papyrus give up!
...Probably.
-
Bookmark Notes:
My favorite Papyrus fic of all time
-
Bookmark Tags:
Bookmark Notes:
Peak ficción de papyrus 💥💥
Cap:8
-
Tags
Summary
You were like any other person, if not a bit more reclusive. After all, you couldn't imagine many other people jumping on the opportunity to work on an isolated island for a year.
You also couldn't imagine anybody else being so welcoming to these sirens.
And maybe that was for good reason.
-
Bookmark Notes:
Im crying omg i don't know how to live life now
-
Bookmark Collections:
-
-
Tags
Summary
When pillows just don't do it for you anymore. It's not weird, really it's not!
But since when could a literal pile of bones feel so comfortable...?
- Language:
- English
- Words:
- 9,585
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 22
- Kudos:
- 429
- Bookmarks:
- 82
- Hits:
- 3,391
-
Tags
Summary
What if, instead of Nightmare initially having
adoptedsought out the Murder Trio, they were the ones who went out of their way to dig out a place for themselves in the bitter and jaded spirit's heart? -
Distant Souls by Kaboom91
Fandoms: Undertale Yellow, Undertale (Video Game), Deltarune (Video Game), OneShot (Video Game), Heartbound (Video Game), Ib (Video Game)
25 Sep 2025
Tags
Summary
The soul is an important part of a persons identity, the accumulation of a person's being. But different worlds play by different rules, so when a force trapped between worlds starts tampering with those worlds, things start to come apart. It'll take the help of a Fun Gang, a Savior, a young girl, a boy looking for his dog, a small cowboy seeking justice, and an incredibly determined human to save all their worlds from the ever looming darkness.
-
Bookmark Collections:
-
Tags
Summary
Sans finds his SOULmate while he's in heat, terrible luck for both you and Sans. He then proceeds to fuck everything up even worse by threatening to kidnap you if you don't start dating him.
Can you make this relationship work?
Or will you find some way out of this?Series
- Part 1 of Impatient
- Language:
- English
- Words:
- 40,467
- Chapters:
- 27/?
- Comments:
- 512
- Kudos:
- 1,569
- Bookmarks:
- 227
- Hits:
- 40,866
-
Bookmark Notes:
27 oh shit. Also love the take for horror paps. It feels pretty genuine for his character after being traumatized and darkening as a person.
-
*Rewrite/New Version* Healing What Has Been Broken by Harrish6
Fandoms: Undertale (Video Game)
25 Oct 2020
Tags
Summary
Error, the Forced God of Destruction and Destroyer of Universes, formed by Fate and left to be the Multiverse's scapegoat.
Ink, God of Creation and Creator of the Multiverse, created by Fate and the most loved out of the Multiverse.
Error was so tired of where he was the villain, the insane Monster with no feelings, wants, needs or desires and Ink was the hero, the one that everyone looked up to and loved for 'protecting' them. Fate would not allow him to die. Forcing him into playing a role that he has grown tired of and hate. But, one day, Error had been able to take his fate and change it - making it into his destiny.
Landing in this new Multiverse, the impossible became possible.
There was a reason Destiny chose this Multiverse for Error to land into. Healing might take some time, Fate might still be a issue, and it might be different from any other Multiverse, but it is more than willing to fight for one of their's. Error's old Multiverse is in for a ride once they find him, because this new Multiverse is more than a little blood hungry.Unstable Multiverse, meet Warverse.
Series
- Part 1 of Forced God of Destruction Error
-
Bookmark Collections:
-
Bookmark Notes:
Last Chapter Read: Chapter 11
-
Tags
Summary
Recently divorced and too proud to tell anyone how bad she's really doing, the last thing Jennifer wants is a Bitty.
Luckily, she doesn't get a vote.- Language:
- English
- Words:
- 367,177
- Chapters:
- 175/175
- Comments:
- 2,913
- Kudos:
- 1,155
- Bookmarks:
- 219
- Hits:
- 40,893
-
Bookmark Notes:
Whauwhhuhgghhhhhhhhhhhhh. I read the start of this years ago, forgot about it, and just now got tobinge and finish it. Worth every minute, every word, every moment. Beautful outstanding work. I cried 3 times at least just in the last third alone.
-
Bookmark Notes:
37
-
Bookmark Notes:
Stowaway Bitty , by HistoricallyDragon . Undertale (Video Game),
upd 13 Dec 2024, 175/175
haven't read all the way through, just start from the beginning
https://ao3-rd-8.onrender.com/works/20805410/chapters/49450010 -
Bookmark Notes:
We on chap 30
-
i am the shape you made me. filth teaches filth. by altariart, necropathy
Fandoms: Undertale (Video Game)
23 Sep 2025
Tags
Summary
His grip on the knife tightens until the bones of his knuckles ache.
He should do it. He has to do it.
But all he can see is how small he looks. How tired.
All he can feel is how badly he wants to reach out instead—just to touch him, just to make sure he’s real. Not a memory. Not some cruel hallucination born of guilt and longing.
His hand lowers, only slightly.
His knees feel weak. His vision blurs, not from tears, but from something heavier. The kind of grief that doesn’t cry—it just sits, low in the ribs, thick and aching.
He needs to end it now. This version of Nightmare doesn’t even know what’s coming. There’s no malice in him yet. No corruption. No hatred.
Just a boy asleep beneath a tree that he used to call home.
It’s so easy. It would be a mercy.
And Dream can’t move.
Because no matter what he tells himself—about the stakes, the mission, the cost—when he looks down at his brother, all he sees is the child he failed to protect.
Dream’s mission was clear: assassinate Nightmare, erase the corruption before it ever took root. But standing in the past, blade in hand above Nightmare's throat, he faltered.
- Language:
- English
- Words:
- 10,271
- Chapters:
- 1/?
- Collections:
- 1
- Comments:
- 3
- Kudos:
- 32
- Bookmarks:
- 7
- Hits:
- 192
-
Tags
Summary
A human sophomore transfer student has been accepted into a relatively new and experimental college program that takes him right to the heart of New New Home, moving in to a drastically new college life in a world where the monsters reemerged from the Underground of Mt. Ebott.
It's here in his new settling life, he finds himself accidentally falling for a certain monster professor. And frankly, she might be falling for him too.
WIP Slowburn Romance/Slice of Life fic between Toriel and human OC in Undertale AU (True Pacifist Route)
-
Bookmark Notes:
2
-
Bookmark Notes:
Toriel encuentra el amor hacia un humano
Que bonito :D (le da celos)
-
Tags
Summary
Sans is convinced everybody hates him.
Since he's just a burden, what's the harm in leaving?-
Bookmark Tags:
-
Bookmark Tags:
-