Gastersans Stories

206 Stories

Falsely Convicted  (G!SansxFrisk) by Wolf-Madison
#1
Falsely Convicted (G!SansxFrisk)by Howling Wolf
Frisk's world has just fallen apart. She's innocent and afraid in a prison of dangerous monsters, figuratively and literally. There's something going down and Frisk isn'...
[DISCONTINUED] Intertwined (G Sans x Female Reader) by IOUnot123
#2
[DISCONTINUED] Intertwined (G Sans...by I want to be NEENJA
Y/N never did fit it in with the crowd, always the outcast, misunderstood, and judged for the peculiar things she did or didn't . Because the world was what it was, she...
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
Resistance (G!Sans x Frisk) by _raxeira
#4
Resistance (G!Sans x Frisk)by hazel.
Frisk had always run into the occasional human-hating-monster, but when the attacks got more violent and consistent, she has no other choice but to seek the companionshi...
Completed
Renegades [Frans in Echotopia (AU) Story] by FloweyTheFoodie
#5
Renegades [Frans in Echotopia (AU)...by FloweyTheFoodie
You'd think high school is stressful enough, but now Frisk has to deal with moving to a new school for Junior year. Whether it's dealing with G A.K.A. the school flirt...
Hold Still GXReader by EternalKimFlame
#6
Hold Still GXReaderby Flame
(Y/n) has had a rough life, how could it get any worse? Let's let G answer that. ~~ This is a Complete Rewrite of Hold Still! I don't own any of the pictures or Songs.
Completed
Test subject by xbutterfly_walkerXx
#7
Test subjectby Not Coming Back
Gaster the royal scientist dark reality, you've seen the boys. You THINK you know there backstory. It's time for a harsh truth about Sans and Papyrus you never thought y...
Try me, Bones. (Gaster!Sans X Reader) Wattys2016 by Silverhaunter
#8
Try me, Bones. (Gaster!Sans X Read...by Silverhaunter
The only way to the top in this world, this world born of war, born of death, the only way of ascension? ...is to become someone you don't want to be. And so I've got to...
Sorry About That (Gaster!Sans x Reader) by little-nabb
#9
Sorry About That (Gaster!Sans x Re...by Miscellaneous
You worked for the newspaper, doing a simple editing job and a few other things here and there. Ever since monsters came out of the ground, though, rent has sky-rocketed...
Nightmare (An Undertale Fanfiction) by LucyTheDragonslayer
#10
Nightmare (An Undertale Fanfiction)by Claire Heartstrings
In a world where only the strong survive, there is me. I'm not strong, or a survivor, but I'm still here. My parents have kept me hidden from the world, never letting...
Gold's Eye GasterSans X Reader by xbutterfly_walkerXx
#11
Gold's Eye GasterSans X Readerby Not Coming Back
You've heard the stories, of the mysteries of a man who guides lost ladies home by night legend says his voice is like a demon of hell and anyone who's ever approached h...
Completed
Little Lyrebird(G!Sans x Reader) [DISCONTINUED] by xXDiabolicEnigmaXx
#12
Little Lyrebird(G!Sans x Reader) [...by XxDiabolicEnigmaxX
He created me to become the people's art. But he has only created the perfect weapon. (Cover drawing is not mine)
Twins by StarRoseColors
#13
Twinsby Star Rose Colors
Chara and Frisk are twins. What happens if one prefers a twin over the other?
Completed
Innocently bad♡{Gaster sans x Frisk}♡ by Beautytrashy
#14
Innocently bad♡{Gaster sans x Fris...by SucculentSquid
She's a innocent goody he's a bad boy Frisk was raised by her wealthy father, he was the leader of the well feared mafia. But everyone has a weakness especially this lea...
Completed
Inner Angels (a gaster sans x reader) by SpazzyJazzy193
#15
Inner Angels (a gaster sans x read...by Angel Moonvalley
This takes place AFTER my other book called Inner Demons.
One-Shot Collection; Sans x Reader by AyePapy
#16
One-Shot Collection; Sans x Readerby P A P Í
//Requests are open// Different varieties of characters to read. From original Sans to AUs. The possibilities are endless! Lemon, perhaps... *you feel your sins crawlin...
Cuts and bruises (A Gastertale sans X Reader Fanfiction) by Makayla2290
#17
Cuts and bruises (A Gastertale san...by Makayla ❤🔪
It's been 5 years since monsters have broken out from the underground. The moment they came, everything went to chaos. War broke out throughout the land and everything i...
Kitten (-gaster!sans x reader-) by Ghost_noodle
#18
Kitten (-gaster!sans x reader-)by :)
The monsters were freed from the under ground. The humans are racist toward the monsters but the leaders of the human race have decided to restrict any human or monster...
Completed
Au!Sans X Reader - Preferences by YourDarkestDestiny
#19
Au!Sans X Reader - Preferencesby YourDestiny
I got bored. Oneshots are surprisingly difficult so I thought I'd do this. Seems easier and I can branch off different Ideas. Feel free to request or use my ideas for...
Please Come Back {Gsans X ¡Abused Reader fanfic} by littlemisslyss1212
#20
Please Come Back {Gsans X ¡Abused...by littlemisslyss1212
So this is my first..halfly planed out story's so its probably not going to be good but anyway Gsans usually goes two different ways in these story's but for this one he...