Xgaster Stories

56 Stories

Reborn as a baby Xtale Gaster by Cosmicstars08
#1
Reborn as a baby Xtale Gasterby Cosmicstars08
This doesn't 100% follow the original Xtale story even before the babifacation of Gaster. When a pure yet genius soul dies at the same moment one of Xtale Gaster's over...
Not his world anymore~ XTale Chara x reader [book 1/2] by Spooky_scary_Sam
#2
Not his world anymore~ XTale Chara...by yep
(Underverse and XTale belong to Jael Peñaloza! All other AUs belong to their respective creators!) [gender neutral so more people can enjoy!] This story is in the proces...
Completed
𝐖𝐀𝐍𝐃𝐄𝐑𝐄𝐑 | 𝐔𝐍𝐃𝐄𝐑𝐕𝐄𝐑𝐒𝐄 𝐗 𝐑𝐄𝐀𝐃𝐄𝐑 by analrightidiot
#3
𝐖𝐀𝐍𝐃𝐄𝐑𝐄𝐑 | 𝐔𝐍𝐃𝐄𝐑𝐕𝐄�...by your closet
𝐔𝐍𝐃𝐄𝐑𝐕𝐄𝐑𝐒𝐄 𝐗 𝐑𝐄𝐀𝐃𝐄𝐑 | 𝐑𝐄𝐀𝐃𝐄𝐑 𝐈𝐍𝐒𝐄𝐑𝐓 ‹―💜―› "𝐅𝐀𝐍𝐂𝐘 𝐒𝐄𝐄𝐈𝐍𝐆 𝐖𝐇𝐄𝐑𝐄 𝐘𝐎𝐔 𝐀𝐑𝐄 𝐍𝐎𝐓 𝐒𝐔𝐏𝐏𝐎𝐒𝐄𝐃 𝐓𝐎 𝐁𝐄, 𝐖𝐀𝐍�...
Completed
𝐗𝐄𝐍𝐀𝐂𝐈𝐎𝐔𝐒 | xᴛᴀʟᴇ x ʀᴇᴀᴅᴇʀ by analrightidiot
#4
𝐗𝐄𝐍𝐀𝐂𝐈𝐎𝐔𝐒 | xᴛᴀʟᴇ x ʀᴇᴀᴅᴇʀby your closet
[discontinued] [Rewrite 100% Confirmed] "𝐈 𝐰𝐚𝐧𝐭 𝐚 𝐜𝐡𝐚𝐧𝐠𝐞 𝐭𝐨 𝐡𝐚𝐩𝐩𝐞𝐧!" "𝐈 𝐣𝐮𝐬𝐭. . . 𝐝𝐨𝐧'𝐭 𝐤𝐧𝐨𝐰 𝐰𝐡𝐞𝐧 𝐢𝐭'𝐬 𝐠𝐨𝐢𝐧𝐠...
The Psychotic Parasite  by randomcringeperson
#5
The Psychotic Parasite by randomcringeperson
So, I've been seeing a lot of reincarnated as nightmare or nightmare's parasite but they were all good even if they didn't care about killing someone if it could save so...
Strangetale  by KevinMorbikus713
#6
Strangetale by KevinMorbikus713
It was difficult for me to come up with a name, so I decided to limit myself to this. To be honest, I don't know English very well, so some words will be poorly translat...
Male Fear soul reader x Xtale by Kiyosei_Kotetsu
#7
Male Fear soul reader x Xtaleby 💜K&C❤️
What would it be like if the soul of fear existed in Xgaster universe? Let's find out and see if things change
Storyshift: Stuck in my creation (author in storyshift) by Notappel1948
#8
Storyshift: Stuck in my creation (...by NotApple1948
While I/notappel1948 was making a new story I "accidentally" opened a wormhole into the story and I fell in and lost some of my ability's.including the ability...
You Don't Have To Be Alone~ XTale Chara x reader [book 2/2] by Spooky_scary_Sam
#9
You Don't Have To Be Alone~ XTale...by yep
[sequel to Not His World Anymore! credit for cover art to unknown artist! All aus belong to their creators! Gender neutral!] It's been ten years since XGaster was killed...
IZUKU THE CROSS HERO (Rewrite,Paused) by DekiruTheNine
#10
IZUKU THE CROSS HERO (Rewrite,Paus...by Dekiru
Izuku is the SUCCERSOR of Cross ( sans the skeleton from XTALE) and now with this power has to save everyone from the evil that coming I don't own BNHA OR UNDERTALE/XTA...
Completed
(Re-Written) The Huntsman Who Speaks In Hands by ShaoKhan5
#11
(Re-Written) The Huntsman Who Spea...by Sayam Khan
The adoptive brother of Ruby and Yang attends Beacon Academy. stuff happened and I lost my account, so I'm doing my story again on my new account, I'm SO sorry for this...
His Unfazed Determination~ XTale Frisk x reader by Spooky_scary_Sam
#12
His Unfazed Determination~ XTale F...by yep
[art used for cover by Rua Shio! All rights to characters to their creators! Gender neutral!] "You underestimated me, I'm determined too!" "You don't und...
Completed
The Lost Numeral ( Xtale x Male reader)  by BlackFlashYuto
#13
The Lost Numeral ( Xtale x Male re...by Code-Cipher
In this story is a hidden timeline mysteriously- fixed by an unknown individual, the timeline is the XI timeline. Protective to the people he considers family, so he t...
Fin and tails unite by TheDragonOfBalance
#14
Fin and tails uniteby TheDragonOfBalance
While monsters and humans live together in the surface mers rule the ocean, sea creatures that are half fish and half monster, and those living deeper in the ocean are k...
Reborn as... FRISK AND CHARA SISTER FROM XTALE!? {COMPLETE} ||EDITING|| by Readingmehsaga
#15
Reborn as... FRISK AND CHARA SISTE...by ˚୨୧⋆𝕾𝖆𝖌𝖆⋆୨୧˚
|| Cover not mine || {Inspire to all the people who made reborn undertale au} Xtale Aliza belongs to me I wanted to make this cause some people make it as well so credit...
Completed
𝐖𝐀𝐍𝐃𝐄𝐑𝐈𝐍𝐆 𝐒𝐎𝐔𝐋 ; underverse by analrightidiot
#16
𝐖𝐀𝐍𝐃𝐄𝐑𝐈𝐍𝐆 𝐒𝐎𝐔𝐋 ; unde...by your closet
(Official Rewrite of Wanderer, my Underverse Reader Insert Fic ! ! !) *inserts cool decription* ஓ๑♡๑ஓ ➸ Underverse belongs to Jakei. ➸ Undertale belongs to Toby Fox. ➸ A...
Undertale | a weird fusion by KarmaAkabane425
#17
Undertale | a weird fusionby Karma Akabane
So someone asked me to help them with the story or for me to write it so they can see how they can probably do it. (I did it my own way and they will have their own way...
When will it be enough?(Xtale fanfic) by Brody-wolf
#18
When will it be enough?(Xtale fanf...by Brody Wolf
XGaster has found an objective. To create the best universe for his human Brody. But when time passes his ideas slowly become more twisted, when will he be satisfied? an...
Completed
The Lilac Soul: Undertale Au's x Male! OC by LexiKamado901
#19
The Lilac Soul: Undertale Au's x M...by LexiKamado901
I had this idea for a while now. I haven't seen many stories where people make a good male reader or OC where it's not just frisk or chara So...this is basically Sans, P...
Scattered X-iles by HelionUT
#20
Scattered X-ilesby Helion
What if, as one of many possible scenarios, the X Event failed? XGaster's greatest creation that was crafted together with Ink as a partner failed sometime after the bea...