Gaster Stories

1.2K Stories

Spinning Dream Delights 【Yandere!Jevil x Reader】 by S-aHowaito
#1
Spinning Dream Delights 【Yandere!J...by ▵S-a▿
『Can this be true? I can't believe what I've seen. A soul like yours - to be as strong as you are. A memory stirs... you made me think of a man, from years ago - a man w...
To the Bone by GhostFang12
#2
To the Boneby GhostFang
It had been six months since Jaune Arc dissappered from the face of Remnant. It has been four years since Monster Kind had been freed from the Underground. On Remnant 7...
Completed
Why? • Gaster!Sans x Human!Reader by sansisnotonfire
#3
Why? • Gaster!Sans x Human!Readerby sansisnotonfire
'When I was 13, I killed someone. By accident of course... It was the day I found out I possessed some type of power.' You kept it to yourself for years until one...
Completed
Undertale x male reader - A bullet to the head *Season 1 + 2* by kinder1000
#5
Undertale x male reader - A bullet...by Kinder
"A man nearly kills you and your response is to track him across the whole underground... When you set your mind to something you get results... I like that." ...
Even in the Dark there's Light (Deltarune Readerinsert) by Tracker-75
#6
Even in the Dark there's Light (De...by Phantom Link
ARE YOU THERE? ARE WE CONNECTED? EXCELLENT. How interesting, he's trying to connect with THEM. Hmm, what if we...there, let's how this experiment within an experiment go...
Gaster One Shots 3 by EmilySkelewolf
#7
Gaster One Shots 3by Lady of WIP
THIRD TIME IS THE CHARM! [Highest ranking #98 in fanfic] NO IMAGES R MINE
Completed
The Comedian Skeleton In SDM (Last Breath Sans X Touhou) by AslancanTr
#8
The Comedian Skeleton In SDM (Last...by Aslancan Tr
This Story is taking place after the phase 3 event of Sans, finally losing against the human. Sans wakes up in a mansion and meeting with a blonde yellow with ponytail h...
(Sans x Reader) When Two Souls Meet by ZanaBSparrows
#9
(Sans x Reader) When Two Souls Meetby Zana B Sparrows
Sans has lived through countless timelines. He's seen the kid make friends with everyone, only to give up in the final moments. He's seen the kid killed, over and over a...
Completed
Undertale Comics 1 by crazytitan25
#10
Undertale Comics 1by crazytitan25
Just a bunch of comics about Undertale.I do not own this comics.
Completed
♡𝐷𝑒𝑣𝑜𝑡𝑒𝑑♡ (Delta Rune: Kris x Reader) by fufuvie
#11
♡𝐷𝑒𝑣𝑜𝑡𝑒𝑑♡ (Delta Rune: Kris...by ༻♡︎𝑪𝒉𝒂𝒐𝒕𝒊𝒄♡︎༺
He was deserted. Abandoned. Neglected. Disowned. Forlorned. She was compassionate. Affectionate. Solicitous. Warmhearted. Fonding. He was empty. She was fulfilling. She...
Royal Blue by dealialestina
#12
Royal Blueby Spilled-my-coffee
Sans knows a lot about secrets; he hides many. But when old burdens emerge from the darkness, secrets, new and old, put his brother in danger; and what else can a good b...
Divided [ Sans X Reader ] by morrow-
#13
Divided [ Sans X Reader ]by space sloth
Almost four years marking the anniversary of monster kind reaching the surface, the human ambassador Frisk goes missing. Severing the link between the two species, an al...
Completed
No One is Happy with This (Undertale) by ANinnyMouse42
#14
No One is Happy with This (Underta...by ANinnyMouse42
~o0o~ Book 3 of the "Better Times" trilogy ~o0o~ (Book one: "The Time Before") (Book two: "A Name to Remember") Two years after the Barrier...
Completed
Welcome to Underhigh. Underhigh x reader (Completed) by Kath1908
#15
Welcome to Underhigh. Underhigh x...by Kath W
WARNING: STORY HAS VIOLENCE (Y/N) is a young 17 year old who goes to Underhigh, the biggest high in the multiverse. (Y/N) had no friends and a bad past. She's smart thou...
Completed
Undertale x Male reader - Overprotective  by kinder1000
#16
Undertale x Male reader - Overprot...by Kinder
Y/N L/N, lost after the disappearance of his sister and the death of his father. This pain caused Y/N to be quite the uncaring individual... not helped by his past mista...
I'm...swap gaster? by KarmaAkabane425
#17
I'm...swap gaster?by Karma Akabane
Yeah sorry gained an idea on if someone became swap Gaster Also they may be apathetic or just confused on their feelings and MAYBE Autistic, I may be a bit wrong on ap...
It's time to be a [BIG SHOT] in Remnant. by XpancakesBeconX
#18
It's time to be a [BIG SHOT] in Re...by XpancakesBeconX
(My first story so sorry if there's bad grammar) The Rose family had never been more positive after they had there children. Plus each child had there own dreams. Ruby w...
In Revenge's Wake (Undertale Fanfic) by lullabyspider
#19
In Revenge's Wake (Undertale Fanfi...by dust particles
"Looks like Chara's been busy while you were away, Frisk... " **Probably going to be a bit graphic, also prepare for some frans content ;)**
Undertale Scenarios by InWolfsClothing
#20
Undertale Scenariosby In Wolf's Clothing
A series of semi-realistic scenarios including a handful of Undertale characters. In otherwords, stick around. ... Please.
Completed