Dr. Gaster & Mr. Black (Undertale AU) - "𝘏𝘰𝘸 𝘥𝘰 𝘺𝘰𝘶 𝘸𝘳𝘪𝘵𝘦 𝘭𝘪𝘬𝘦 𝘵𝘰𝘮𝘰𝘳𝘳𝘰𝘸 𝘸𝘰𝘯'𝘵 𝘢𝘳𝘳𝘪𝘷𝘦?" ᴹᵉ ᵃˡˡ ᵗʰᵉ ᵗⁱᵐᵉ. - Wattpad

Dr. Gaster & Mr. Black (Undertale AU)

Reads 759
Votes 64
Parts 16
Time 1h 44m

Reads 759
Votes 64
Parts 16
Time 1h 44m

alphys artwork asgoredreemurr crossover dadster death dr frisk gaster hurt-comfort hyde jekyll lyrics majorcharacterdeath mildviolence murder musical ocs papyrus sans toriel undertale

An Undertale twist on the classic "Jekyll and Hyde" Broadway musical. After having been rescued from the depths of the Void, Dr. Gaster resumes his role as Royal Scientist--alongside Dr. Alphys. Now that Monster Kind is no long in need of SOULS, Gaster sets out to begin studying the one thing Humans and Monsters have in common--good and evil natures. In believing it to be greatly beneficial to both races, the Doctor sets out on his new line of research. But, such a pursuit of knowledge can be quite the fine line, and crossing onto the wrong side can be disastrous.All Rights Reserved

alphys artwork asgoredreemurr crossover dadster death dr frisk gaster hurt-comfort hyde jekyll lyrics majorcharacterdeath mildviolence murder musical ocs papyrus sans toriel undertale

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16 parts

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Undertale: Fallen Angel by WymanStep

Having escaped their cruel imprisonment within Mount Ebott, monsters have settled on the surface for six years now. Their human savior, Frisk, now struggles with the busy life of being an ambassador. Soon, tragedy strikes, and with a civil war brewing back home and every timeline now at stake, will the prophesied angel manage to keep their happy ending? Undertale's world and characters are owned by Toby Fox. This is a non-profit fan novel. Please support the original game.

Undertale x male reader - Reborn by kinder1000

The one that made it the furthest in the underground, perseverance. Perseverance had beaten almost all of the monsters in the underground from papyrus to sans and undyne but ultimately couldn't finish the task of beating asgore and so his soul was took from him. However, years went by and his soul was left in the underground along with the other six after Frisk had broke the barrier but this changed when gaster had finally been freed from his hell

Reset {UNDERTALE} by emotistic-optimistic

*FEATURED STORY* As Judge for King Asgore Dreemurr, Sans has seen a lot of strange stuff. But when he wakes up with the feeling that something is completely wrong, he decides it's time to investigate with the only monster who could know what was happening: Royal Scientist W.D. Gaster.

The New G̶͉̤̮̮̗̩͓̦̭͗̐̀͛̊͛̚͝a̶̟̲̘̘̗̖͔̿͛̏̈́͆̏ş̶͓͍̪̩̿̈́͊̽ͅṫ̷̢̞̹͔̻͈͙͚e̶̮͍̤͎͖̰̣͔̅r̶͗̓ by Call_Me_Darcy

Darce got reincarnated into her favorite game which is Undertale... but she didn't expected to be mad scientist which is Gaster and different one!!! But this Gaster is Gender Neutral and doesn't give up on helping out their people but they ended up in black void where the Gasters are. Will Darce help them to return their rightful home and they stayed behind to recover the void? or The Gaster Gang pull them towards the gang to make themselves at home? Read to find out!!! ☺☺

Darkness' Eternal Bride (Gaster x Reader) by xsfolia

WARNING: THIS CONTAINS HIGHLY MATURE CONTENT (BLOOD, VIOLENCE) READ AT YOUR OWN RISK Money can change a lot of things. It can even change your destiny. Plunge yourself into a life of romance, science, disappearance and misunderstanding. ________________ "When you get better, I'd like to kiss you" ... Gaster only wanted to conduct an experiment. He surely didn't want his life to be taken over by weird feelings. He also wanted the only thing he couldn't really have. He wanted you. What will he obtain? Will his research finally be completed? Or will he have to start another one? As for you, will you be able to move on from the past? Words count: 81.390 Also contains mentions of nsfw [Rankings: #1 in #gaster (08/21/2022), #5 in #xreader (08/21/2022)]

W. D. Gaster - An Undertale Story by RandomWriter1987

It all started when W. D. Gaster became the Royal Scientist of the Underground. Many monsters knew him, some even followed him. But one day, he injected himself with DETERMINATION. It caused something bad to happen. But it all took a turn for the worst when he fell into his creation. When he fell into the CORE. When he found out the truth. When he drifted in the darkness. Forever. Undertale Characters and Undertale by Toby Fox Cover Art by me.

Love can't tear us apart... Right?[On Hold] by bonecatAndcompany

(cover draw by me. It's just a version from an inspiration I saw from another artist that I forgot their name by the way-) read this story if you like a Canon character being ship by my persona. I mean for me it's better than doing an x reader XD I'm so bad at those(I don't even understand how people loved my Huggy wuggy one-). anyway enjoy. Gaster belong to Toby fox. the other characters from Undertale has well. only my ocs and persona belong to me. So has the drawing you will see in it. if I even remember to put some in ^^"

Undertale: giving soul by Author-Dayo

This is a story before the last human fell around the time Chara was still alive and well. Humans were not being hunted till the adopted prince's passing, however with a new time line comes a new story and this one is not like the others. W.D gaster a father of two children is called on an unusual discovery, the product of something unknown by monsters or man. The smallest addition to his new life and others around them. With no one but the Gaster family and the protection of the Royal Family, She will learn much about herself and the people around her.

× [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!

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~

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The New G̶͉̤̮̮̗̩͓̦̭͗̐̀͛̊͛̚͝a̶̟̲̘̘̗̖͔̿͛̏̈́͆̏ş̶͓͍̪̩̿̈́͊̽ͅṫ̷̢̞̹͔̻͈͙͚e̶̮͍̤͎͖̰̣͔̅r̶͗̓ cover

Darkness' Eternal Bride (Gaster x Reader) cover

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Love can't tear us apart... Right?[On Hold] cover

Undertale: giving soul cover

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

The Time Before (Undertale) cover

Undertale: Fallen Angel

Having escaped their cruel imprisonment within Mount Ebott, monsters have settled on the surface for six years now. Their human savior, Frisk, now struggles with the busy life of being an ambassador. Soon, tragedy strikes, and with a civil war brewing back home and every timeline now at stake, will the prophesied angel manage to keep their happy ending? Undertale's world and characters are owned by Toby Fox. This is a non-profit fan novel. Please support the original game.