Endurance - Gaster x Reader - Astra (on indefinite hiatus) - Wattpad

Endurance - Gaster x Reader

Reads 923
Votes 35
Parts 12
Time 2h 27m

Reads 923
Votes 35
Parts 12
Time 2h 27m

Mature

alphys asgore asriel flowey frisk gaster gasterxreader grillby mettaton napstablook papyrus riverperson sans toriel undertale undertalefanfiction undyne wdgaster

So, it just so happens that the core is going into meltdown and someone had the awesome idea of asking its creator to help. Small problem with that though... he apparently kind of doesn't exist anymore?! How to resolve this? Simple, send someone into the past, namely you, to go and ask them. 

With everyone's hopes and dreams resting on your shoulders, let's just keep our fingers crossed and hope you can convince the monsters not to kill you and persuade the one and only W.D. Gaster you're not a lunatic and get help.

Surely it will go just smoothly, right? No problems at all. I mean, it's not like you're going to fall for a guy that will eventually disappear from existence, right?

You must ENDURE!All Rights Reserved

alphys asgore asriel flowey frisk gaster gasterxreader grillby mettaton napstablook papyrus riverperson sans toriel undertale undertalefanfiction undyne wdgaster

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12 parts

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UnderCorrupt by ANinnyMouse42

I have an Idea for an Undertale AU. And apparently, it's a good idea? So here, have a book. --- Long ago, two races ruled the earth. But when a plague of corruption swept through one species, causing a half of their population to attack the humans, the humans thought it safer to banish all the monsters underground. Now, the Underground is a Battleground. The battleground of the Pure and Corrupt armies. This Is UnderCorrupt. -- COMPLETED!

Universal Surface Angel by Lithriel

Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows of the powers you gained from his experiments... all but one, this one allows you to tear realities just enough to teleport into them. Knowing of Undertale you felt bad for the monsters stuck below in their world and wish to help them, but something goes wrong and you end up going to certain AUs and helping them, gaining the attention of some bad skeletons who now desire your power for them-selfish-selfs.

HAZE by anonemones

Written: May 10th, 2017--June 22nd, 2017 reposted from my AO3, anonemones; contains both part one and part two. After a year of living on the surface, monsters and humans have gotten along well, with (mostly) everyone adjusting to the many changes without much trouble. However, events take a strange turn when Sans and Papyrus--both of whom have been acting unlike themselves--go missing, supposedly without a trace. In their place are two monsters who go by the names of Wingdings and Aster, twins, claiming to be the lost Royal Scientist. Everyone is thrown for a loop, especially as nobody remembers a Wingdings or Aster--or, as they claim to be, "Dr. Gaster"--nor do they remember a Royal Scientist before Alphys. And with Sans and Papyrus missing, things don't look good for either of the boys. As their friends search for the missing skeletons, Wingdings and Aster work together to uncover what's happened while they were gone, as well as what might've caused everyone to forget them in the first place. But, trouble lurks within the shadows, as the Void closes in on them once again--refusing to let go of what belongs to it. And unfortunately, the Void is not the only thing after the boys' lives.

× [Sickness] × || Undertale Fanstory || The Gasters/Skeleton Family by Nanaz_Nazmaki

One day, Sans fell sick. His sickness came out of nowhere and it cannot be cured no matter how many medicines Gaster gave him. Because of the sickness, Sans stayed still on the bed, just laying down or sitting on it under the blanket. The sickness can be seen from his face, half of his white skull was a little bit darker than the rest. Gaster and Papyrus had no idea what kind of illness Sans has, but they decided to take care of him no matter what, hoping that the sickness will soon gone either because of the medicines Gaster gave him, or disappears itself. But alas, The sickness gotten worse... -------- UNDERTALE (c) Toby Fox --------- This have nothing to do with Undertale's canon characters or story. This is just a fan story I made because the idea stuck in my head for a few while and I'd like to share it with all of you. So, enjoy!

Don't Forget [Sans x Female Reader] by GabrielXander

You would think that with how shit your luck is, you would've been dead day one since falling into the Underground filled with scary monsters and a few spooky skeletons. However, much to your surprise, that did not happen (yet). You know how you ended up here, but you don't know... HOW. You're actually in the GAME Undertale now. And to make matters worse, there are some people who KNOW. You're surviving the best you can, but things are only going to get weirder from here on out. Gaster apparently needs your help? You're using the DJ to go to different AU's? You are gay now?- Okay, maybe that last one is just a joke, but still! You can only hope that your instincts are enough to keep you alive in these trenches. On God, they tryin' to drown you in this hoe! {Available on Patreon, Quotev, and Ao3 under GabrielXander}

To Hell and Back (Gaster x Reader) by xsfolia

"What's that look for? Are you perhaps unhappy to see me?" "Oh no. Oh no, quite the contrary, my love. I've craved to be with you for the longest time" ***** You were sure that you would have captured a Monster, at all costs. But were you sure that you would have captured not a Monster's body, but a Monster's heart? ***** The Barrier is broken • Frisk has saved the Monsters • But not all things went according to plan . . . . ...... It is renowned that Frisk fell into the Underground. They spared everyone, they had [Mercy] for everyone. In the end, they have chosen to be an ambassador for monsters, to represent them in front of all the other humans. Frisk was full of [Mercy]. But the humans weren't as merciful as them. Humans completely forgot about Monsters, and now they had to deal with what they considered an ancient enemy, despite the Monsters' friendly intentions. What will Monsters do, if they suddenly are persecuted by Humans? Will they seek help? Will they search for old friends? ... Was it reality? Or was it a true living Hell? Things always went according to plan, so why? This time, why did it have to end like this? You are a spy, working for the most powerful secret Organisation of the Human Government. Your job is to find your targets and bring them back at the Organisation, but if you have the order to, then you have to kill them. This time however...you underestimated the enemy. ***** The new plan was quite simple: bringing him back in exchange for your freedom. Falling in love with him was not part of the deal though. ********* Word count: 110.473 Cover by Earth Garden on tumblr!!

The Time Before (Undertale) by ANinnyMouse42

~o0o~ Book 1 of the "Better Times" trilogy ~o0o~ (Book two: "A Name to Remember") (Book three: "No One is Happy with This") There was a time where a Royal Scientist got an idea. A time where he created two weapons, who turned out to be people. A time where he built a machine to power the Underground. There was a time when the timelines weren't messed up by a certain flower, and then a certain child. There was a time before. ~o0o~ Wattpad Featured Story on 4/28/17 - on the OLD featured list ~o0o~

Dead Giveaway by ChaosCretin527

Heya. The name's Chara. And my mom married a skeleton. How do I cope? Well I lash out and make everyone afraid of me of course! So when they find out what hell I went through before I fell they try and help. I don't want help. And when the humans attack, I try and help. They don't want my help. One of us is gonna have to give in, right? Right?

Broken Souls by James_Bond_Pig

Bringing people back into existence doesn't generally have negative repercussions. Not for an entire world at least. So why don't we use the same idea for an all powerful entity and see what happens? Unfortunately, this world might not be up to the challenge. ---- What's this? An Undertale fanfiction? Yes, that's exactly what it is. This takes place after a True Pacifist route so spoilers if you haven't played it (which you totally should, go play now!) Currently being edited...

Under Infusion Tale- (An Undertale Fanfiction Novel) by Serena_Walken

(Complete) Monsters may be free, but there is a high price to pay for the one that freed them. Deciding Frisk is better off being a mystery, the monsters leave it alone for 14 years. Until Frisk is discovered. Undyne and Sans try to reach her in time, but she is left with a fatal wound. With even boss monsters unable to heal her, Sans heals her the only way left. However, that was part of Gaster's plan . . . but Flowey was not. The result is wedding bells ringing twice for Frisk. Once to Asriel . . . and once to Sans? *Frisk and Sans eventually.

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Slide 1 of 10

UnderCorrupt cover

Universal Surface Angel cover

× [Sickness] × || Undertale Fanstory || The Gasters/Skeleton Family cover

Don't Forget [Sans x Female Reader] cover

To Hell and Back (Gaster x Reader) cover

The Time Before (Undertale) cover

Dead Giveaway cover

Broken Souls cover

Under Infusion Tale- (An Undertale Fanfiction Novel) cover

UnderCorrupt

I have an Idea for an Undertale AU. And apparently, it's a good idea? So here, have a book. --- Long ago, two races ruled the earth. But when a plague of corruption swept through one species, causing a half of their population to attack the humans, the humans thought it safer to banish all the monsters underground. Now, the Underground is a Battleground. The battleground of the Pure and Corrupt armies. This Is UnderCorrupt. -- COMPLETED!