gaster

Gaster One Shots 3 by BrownENH
Gaster One Shots 3 by Emily Skelewolf Fanfiction
THIRD TIME IS THE CHARM! ... Maybe.
More than friends (Female Chara x reader) by Friskybits13
Undertale x reader ~requests open~ by Chaos-Prince
Undertale x reader ~requests open~ by Chaos-Prince Fanfiction
I've decided to just make this an Undertale/Undertale AU x reader just to make this easier(?) for me. will be adding my AUs as well, since I have a few ideas in mind. I'...
Obsession [GasterSans x Frisk] by Ink_Gamer
Obsession [GasterSans x Frisk] by ILoveScience Fanfiction
On the 18th birthday of the princess, she was once again be able to go outside. But in that special day of her's was the time she's going to meet a whole, new, cruel wor...
No One is Happy with This (Undertale) by ANinnyMouse42
No One is Happy with This (Underta... by ANinnyMouse42 Fanfiction
~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...
Mafiatale - An Eye For An Eye (SansxFrisk) by _fransfics_
Mafiatale - An Eye For An Eye (San... by A.P.M.B Fanfiction
HERE IT IS! Mafiatale! NOT MY AU! My own version. SANSXFRISK They my OTP. I hope you like this story! Another Fransfic to go!
Gaster gang x reader oneshots by Chaos-Prince
Gaster gang x reader oneshots by Chaos-Prince Fanfiction
cover art belongs to Bunnymuse on deviantart/Tumblr! okay so I've decided to finally get around to writing oneshots with the Gaster gang! also I shall be adding a few of...
Gaster x Reader by MoonReader109
Gaster x Reader by MoonReader109 Fanfiction
Pretty self explanatory. This takes place after the Pacifist route in Undertale. Through determination, Frisk was able to bring back Chara, Asriel (Asriel is Flowey per...
(Sans x Reader) When Two Souls Meet by ZanaBSparrows
(Sans x Reader) When Two Souls Meet by Zana B Sparrows Fanfiction
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...
Gaster AU x Reader ONESHOTS by BrownENH
Gaster AU x Reader ONESHOTS by Emily Skelewolf Fanfiction
Let's get this over with... HIGHEST RANKING: #35 in Fanfiction June, 23, 2017 ALL IMAGES USED ARE NOT MINE! Cover was made by Bunnymuse on her Tumbler (I think). Bunnym...
Eyes of Fire (Gaster!Sans x Reader) by crying_butterflies
Eyes of Fire (Gaster!Sans x Reader) by Bubbles Fanfiction
(FAN FICTION BASED OFF OF VIDEO GAME 'UNDERTALE') His eyes were like fire. Amber. Dangerous. But they intrigued me. The flames of his soul danced and encased my heart. ...
 Promises [ Sans x Frisk ] [UNDER EDITING] by marlowcosmos
Promises [ Sans x Frisk ] [UNDER... by ☆~° “ αℓωαуѕ „~ ☆° Fanfiction
When she was orphaned after an accident she was sent to the hospital immediately. Fear, pain, and loneliness consumed her as she grieved for her parents but it didn't la...
Undertale Comics 2 by crazytitan25
Undertale Comics 2 by crazytitan25 Random
The part 2 of comic book of Undertale because I ran out of room.
How Does One Draw? by PeridotCipher
How Does One Draw? by Zara Random
Just a random dump that I drew. Mostly Undertale related (and mostly Gaster) (Ok fine it's all Gaster) If you read it from the start, it's like, REALLY BAD. I can't draw...
Divided [ Sans X Reader ] by slavetosociety_
Divided [ Sans X Reader ] by sunday on fire Fanfiction
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...
Undertale Comics 1 by crazytitan25
Undertale Comics 1 by crazytitan25 Random
Just a bunch of comics about Undertale.I do not own this comics.
Experiment 154-1  by MistaIsTrash
Experiment 154-1 by Mia Fanfiction
You. You are the experiment. You are the only one that lived. You are a Human. A LIVING human. You are the one that will solve the Underground's problems. You are experi...
Ask/Dare my Gasters by BrownENH
Ask/Dare my Gasters by Emily Skelewolf Random
Ask; BrownFlower BrownFell BrownBird BrownSwap BrownMafia BrownDust BrownSpace and Browntale GASTER!!!
History by StarRoseColors
History by Star Rose Fanfiction
For years, Aliza has wondered about her real family. Now a clue in an old picture, the only thing left of her mother, finds Aliza climbing Mt. Ebott. In this twisted new...
Don't Give In Stay Determined - Female Frisk x Male Reader by Pie-inator
Don't Give In Stay Determined - Fe... by Pie-inator Fanfiction
A Frisk x Reader Fanfic Takes place after Frisk has freed all monsters from the underground. Lemon included in the long run. This is my first book, please don't judge to...