Underswapgaster Stories

13 Stories

AU Gasters X Reader by Torigoat
#1
AU Gasters X Readerby Destructo
The fall lasted for mere seconds, and yet it felt like an eternity. The adrenaline rushing through your veins proved useless, as there was nothing you could do. You hit...
Gaster Gang Oneshot Book! by Torigoat
#2
Gaster Gang Oneshot Book!by Destructo
If you have a request, you can comment or message me! I'll do lemons and fluff, whatever you request. Gaster Gang goes to Bunnymuse! Photos not mine unless said!
Undertale AU oneshots by Soul_Licker
#3
Undertale AU oneshotsby Soul_Licker
Hey guys, this is the first official book I'm making on here so bear with me. Requests are open
sans/papyrus aus x Mike by Mikey000097653
#4
sans/papyrus aus x Mikeby mike
what happens when Mike is sucked out of his au and thrown into another due to a malfunctioning machine?
Gastergang x Reader Oneshots by AmiriaSwain5
#5
Gastergang x Reader Oneshotsby Amiria Swain
I . just thought I saw so many other people are making thing like this so why not. and everyone just call me Ka rin ki shi ki ka Ari Mei ka ki to or applesauce It won'...
vague love by the-name-is-paper
#6
vague loveby the-name-is-paper
- 'Hey. Would you want this hand be a culprit of arson when I am holding you, little boy?' 'Not if I drench it in gasoline first.' - [ Underswap universe, in the eyes of...
Don't_Forget.png  by that-other-snas
#7
Don't_Forget.png by very expired blueby snas
............to think that everyone would live normally without you, knowing that everyone you once loved had forgotten that you were ever a part of their lives, and no o...
Living with Gaster Gang (Season 1) {Discontinued} by UndertaleSyafiqah
#8
Living with Gaster Gang (Season 1)...by Syafiqah The Ali-human
There's a girl who lives alone with full darkness around her. She's familyless and had PTSD. Her name was Syafiqah, who run away the girl from been killed. But one day...
☆☆_Gaster Gang Oneshots_☆☆ by AUGamerCat
#9
☆☆_Gaster Gang Oneshots_☆☆by Ellenia Rojas
Ok,Ok, I Know Most Other People Have Already Done This But I'm Really Into The Fandom So Imma Just Do It Anyways ;-; Also I Will Be Doing Gaster x Gaster , Gaster x Read...
I didn't see you in a while by Poketale_777
#10
I didn't see you in a whileby Poketale_777
When Stars's past was dark and confusing, someone came to help and give some clarity. After that, Stars never saw the stranger again, until he is in the void. A Fanfict...
My Home Away From Home by fandomtrash126
#11
My Home Away From Homeby fandomtrash126
It was a pleasant night for (Y/N), that is until a portal traps her in a place with magic talking skeletons. Will she be able to leave or will she be stuck there forever...