1 - 20 of 524 Bookmarked Items in Good W. D. Gaster
Navigation
List of Bookmarks
-
Tags
Summary
When you were born fate said 'fuck it' and decided to have some fun at your expense.
It's hard enough trying to pass yourself off as a beta to live a somewhat normal life and keep your 'talents' secret at the same time.
Now monsters are free, you have a hoard of skeletons that won't leave you alone AND soulmates are a thing!? Have fun with that, you're going to need all the luck you can get.
-
Tags
Summary
The barrier has been broken, monsters are free, and life is good for a human boy and his adopted mother. So why is Frisk poring through every book he can find about monster history? And why does he keep returning to Mount Ebott time and time again?
After all, the underground is empty now. Isn't it?
Series
- Part 2 of Best Friends Forever
- Language:
- English
- Words:
- 85,131
- Chapters:
- 27/27
- Collections:
- 1
- Comments:
- 104
- Kudos:
- 185
- Bookmarks:
- 13
- Hits:
- 7,571
-
Tags
Summary
Leaning back, Gaster quickly signed, <Are you okay?>
It was Grillbert’s turn to faintly blush his lovely shade of blue. “........Yes, why wouldn’t I be?”
<You keep… gasping, as if in pain. Just now, and last night while spooning me in bed, and last week while I was holding you->
Grillbert broke into warm laughter, then, flickering with mirth.
Gaster’s entire skull flushed lilac. <Darling, this is serious!> he signed emphatically.
“.......No, it’s not, it’s really not, Dings,” Grillbert giggled. “........You were nibbling on my lip just now, and last night your butt was in my groin, and last week you kept stroking my inner thigh.”
<What does that have to do with anything?> Gaster paled, then. <Was I hurting you? Was I making you uncomfortable?!>
“......No, love. You were turning me on.”
Series
- Part 4 of Will Happen, Happening, Happened
-
Tags
Summary
When Frisk finished her story, barrier broken and monsters freed, she knew there was still a loose end, but she never expected everything to come unraveled before her eyes. Determined to save the only family she’s ever known, Frisk must stitch their lives back together after they are ripped apart at the seams and then attempt the impossible to stop it from ever happening again.
[A story like this has been told before, in many different ways by many different people. Even so, I hope you enjoy it. Please know all major canon timelines and the music of Undertale before reading for the best experience.]
[An AU of what happens after a specific time kid's True Pacifist ending.]
Series
- Part 1 of PATCHWORK SOUL Series
- Language:
- English
- Words:
- 733,921
- Chapters:
- 85/85
- Collections:
- 1
- Comments:
- 490
- Kudos:
- 853
- Bookmarks:
- 115
- Hits:
- 48,663
-
Summary
The lockets they wear may be delicate, but the bonds of loyalty and love they represent between a monster prince and his human sister are unbreakable.
- Words:
- 143,253
- Works:
- 9
- Bookmarks:
- 34
-
Bookmark Notes:
To read later~! Even if it takes a bit given my tendency to procrastinate for all kinds of things x.x
-
Bookmark Collections:
-
Tags
Summary
Sans mistakes an orange glow in the forest for a human soul...
Shenanigans ensue; pun are learned... so many puns...This is just a collection of Grillby and Sans being friends as kids and staying friends as they grow.
Grillby and Gaster do mostly talk in sign language, but I don't know sign language myself so I may include words that do not exist in sign language, but I am trying my best. Stuff said in sign language will be in italics because I find it a bit easier myself.
More tags may or may not be added.-
Bookmark Collections:
-
Tags
Summary
After Chara's unsuccessful attempt at breaking the barrier, he is given a new chance after a brief visitation with the void and six other lost humans. This second chance however sends him on a journey with the undergrounds newest human, Frisk.
He discovers that things had changed immensely since his plan, both in years, and in the undergrounds newest human treatment.
A re-telling of the classic story filled with new found hope, determination and love as the two wander around a familiar, yet different environment.
- Language:
- English
- Words:
- 205,738
- Chapters:
- 66/66
- Comments:
- 600
- Kudos:
- 438
- Bookmarks:
- 68
- Hits:
- 24,710
-
Bookmark Notes:
very cute
-
Tags
Summary
Gaster wants answers to his questions, regardless of the universe he’s in. (Even if he inadvertently caused those questions himself, intentionally or unintentionally…)
He’s been alone as long as he remembers and the only thing that could be a “clue” to his identity and hidden memories is a metal plate drilled into his right hand.
Or Gaster tries to find answers but everything goes worse for him.
Handplates! AU (reversal of roles)
-
Tags
Summary
These days the King is more interested in weird metaphysical biology than physics, which means that Dr. Gaster's project to build a decent generator is not only woefully underfunded, but he has to deal with cruddy technology short-circuiting and exploding constantly. He'll have to pick a team, and indicatively, one of the applicants only has one HP. And he blows up Gaster's office during their "interview."
May or may not contain: tea-drinking, depression, cats, anxiety, swearing, annoying dogs, death and near-death, gravity related injuries, conflicted Asgore, a non-Gaster Royal Scientist, crumbs of Toaster, humans, platonic Sanster, honorary science daughter Alphys, PICK UP YOUR SOCK SANS, unfriendly eldritch critters that don't like the monsters living in their caves, snarky fire elementals, monster souls and their curious properties, odd skeleton behaviors, magic malfunctions, and spatio-temporal displacement.
Gaster as a friendly derp boss monster physicist who for once isn't interested in breaking the Barrier.
Sans as an angst-ridden smol fragile marshmallow with malfunctioning magic.
Alphys as the voice of reason that Gaster does not internally have.
THE GREAT PAPYRUS IS ALSO HERE!
- Language:
- English
- Words:
- 109,328
- Chapters:
- 42/?
- Comments:
- 468
- Kudos:
- 740
- Bookmarks:
- 109
- Hits:
- 15,105
-
Bookmark Notes:
20，gaster在招聘中发现自己的雇员只有1hp，这惊到了他。主线开始前，g甚至不是皇室科学家首席。
-
Bookmark Notes:
20
-
Bookmark Tags:
-
My hummingbird (W.D.Gaster/Reader) by OMGwhyamIadegenerate
Fandoms: Undertale (Video Game)
27 Aug 2025
Tags
Summary
"Ladies and gentlemen, please welcome our queen of the opera, Y/N!"
The noise, the magic, everything making your heart fill with emotion and your body shake with excitement. This is your life.
About 10 years ago, the monsters from the Underground were freed. Unfortunately, the hope of pace was quickly buried under the shadows of the mafia. The human mafia king and the monster mafia king, king Asgore, formed an alliance, covering the shadows with eyes, ears, and fear.
You are a 28 years old opera singer, the best at your job. This is your dream and love, music. Since a child, you fought your way up, alone. But one night, you feel another type of magic, one you never felt before. Your new bodyguards, the skeleton family, intrigued you with their mystery, especially the man named Gaster.
This time, you won't sing a story nor play a role, this time, you would truly feel the power of the most dangerous magic, love. -
Tags
Summary
Adults lied. It was what they did.
They said they would take care of you, but they didn’t. They said they would be there, but then they died. Sans had gotten used to it.
But Papyrus shouldn't have to.
And if Sans had to take matters into his own hands in order to make sure he kept his promise to his little brother? Then so be it. It was Sans and Papyrus against the world, and some gangly skeleton with gentle sockets and a weird font wasn’t going to be the one to change that.
—
“Sans, wait—! Please, let’s just talk for a moment—!”
“no way, you creep! leave me alone!”
“Excuse me? I’m not a creep! I just wish to talk! You have many people very worried about you—”
“nah, you’re not excused. gimme 500 g and then i’ll consider it.”
Series
- Part 3 of Finding Home
-
Tags
Summary
Written for the "Cheer Up The Skeleton" week on tumblr, Day 6 - prompt "the machine is fixed".
Sometimes, there really is a happier ending. All you need is a little bit more help. Sans figures out how to ask for it, his friends figure out how to provide, and together, the achieve the impossible. There's always room on the surface for a few more lost souls.
Series
- Part 6 of Cheer Up The Skeleton Week
-
Bookmark Tags:
-
Tags
Summary
A tale of the past, a tale of the present, both intertwined to tell the tale of two brothers.
A dadby babybones fic set in Underfell, of all places.
-
Bookmark Notes:
Dadby in Underfell!
-
-
I'd Sell My Own Bones For Sapphire Stones (Because Blue's Your Favorite Color) by sneaky AND foxy55 (Sneakyfox55), Sneakyfox55
Fandom: Undertale (Video Game)
28 Aug 2025
Summary
basically all of my fics specifically centering around Papyrus's love for his brother dhjgdjhgjhdsgjhs
- Words:
- 92,031
- Works:
- 14
- Bookmarks:
- 32
-
Tags
Summary
Doctor Wingdings Gaster is back from the dead- a Christmas miracle if there's ever been one -and he can't stop thinking about the woman who saved his life, whose living room he destroyed as he exploded back into existence. Who wept over him as she apologized again and again, not knowing how to help.
How can he repay you?
(Heroism Effect- The sociological instance, opposite of the well known 'bystander effect', in which a stranger shows exemplary leadership and empathy in a moment of crisis.)
-
Double Stitching with Angels by Smilegirl64 for Floofanflur
Fandoms: Undertale (Video Game)
29 Mar 2024
Tags
Summary
After a scare, Frisk finds a crochet kit under their bed. Luckily, a certain ghost knows a thing or three about crocheting.
Series
- Part 1 of Heart on the Table fanfics
-
A Jaded Emerald by KTamao205
Fandoms: Harry Potter - J. K. Rowling, Undertale (Video Game)
04 Sep 2025
Tags
Summary
After dying young in the human world, Harry Potter reborn as a skeleton monster, is found and raised by Sans and Papyrus. As resets begin and memories fracture, the small family clings to each other through nightmares, and the haunting fear of loss. Amid magic, love, and terrible puns, the little brother becomes the heart holding them all together in a world that refuses to stay still.
Series
- Part 1 of ArcalithTale
-
CreepyPasta x Undertale by BubblyShip
Fandom: Creepypasta - Fandom, Hazbin Hotel (Web Series), Marble Hornets, Undertale (Video Game)
18 Jun 2020
- Words:
- 179,156
- Works:
- 2
- Bookmarks:
- 88
-
Kinktober 2022-The Dumpster Fire Edition by RubyDracoGirl
Fandoms: Undertale (Video Game), Deltarune (Video Game)
21 Sep 2023
Tags
Summary
Hey ya'll. It's ya girl, Ruby, coming back for a round three of Kinktober. Am I here to fuck some skeletons (and maybe other Undertale monsters) for a month straight? Hell yeah, I am! And just like the previous times, I am completely unorganized and mildly unhinged =)
- Language:
- English
- Words:
- 85,968
- Chapters:
- 22/31
- Comments:
- 185
- Kudos:
- 1,076
- Bookmarks:
- 134
- Hits:
- 43,075
-
Bookmark Notes:
15
-
Tags
Summary
If Sans was really awake while his dad carried him to bed, savoring the feeling of being held like he had when he was younger, Gaster would never know.
And if Gaster dreamt of tests, drills, and the sound of his two favorite kids in the underground screaming for help while he hurt them…
Well, the boys never had to know.
AKA a few nightmares send Gaster spiraling, and a failed experiment lands him in a new universe completely.
----
This fic is ENTIRELY based on Zarla-s' Handplates au! As well as their au of their au, Mercyplates! PLEASE go check out their work, they are fantastic, and PLEASE read Handplates if you haven't already, it's so good and very necessary to understand this fic. So, bookmark this fic, read Handplates here or here , and come back! Please! Thank you!
-
Bookmark Collections: