16 Works in SAVED W.D. Gaster
Listing Works
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Gaster's project was supposed to shape the future--instead, it broke it.
When paranoia collides with a boldfaced plan, Gaster's erasure is prevented. Everything the project was built on collapses around him. Even though he is spared, it wasn't without a price.
One of his subjects takes his place.
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The Doctor's Descent by Feanyx1
Fandoms: Undertale (Video Game), Doctor Who (2005), Deltarune (Video Game), Doctor Who
22 Nov 2025
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He thought that the radiation would kill him. He thought that his time as the Doctor would come to a sad and brutal end. He was wrong. And that was so much worse.
In his efforts to find himself, and without his companions, he accidentally stumbles onto a monstrous civilization miles below the Earth. With his newfound DETERMINATION and some new allies, he'll come to realize what it truly means to be a friend, and learn how to live his last lives with his head held high.
And make sure that, just this once, everybody lives.
OR
Undertale but the Tenth Doctor replaces Frisk. Fluff, angst, AUs, and timeline shenanigans ensue.
*No knowledge of Undertale or Doctor Who is required, though it is helpful if you've experienced at least one of them.
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"Hey Frisk...Why did you come all the way down here?"
All who climb Mt. Ebott disappear.
This was the legend, yet two kids called 'Frisk' and 'Chara' went to do just that.
With the Monsters freed, they discover what kind of world they left behind—along with the fact they were never the only Monsters living in it. As Asgore faces the repercussions of his decisions, the reintegration of the Monsters to society falls on Frisk's shoulders. But disappearing from the world doesn't come without consequences. Nobody, dead nor alive, is above them.
But if you must choose the past or the future, and only one of those can be changed, which one are you willing to give up?
.
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.
.
“hey, thought you said you wanted to save everyone, huh?”“Yes, butー!”
“but nothing, kid! we’re dying right now!”
Frisk screamed, "NO!"
[Re-edited for 2025. See updated notes in first chapter.]
Series
- Part 2 of Monstertale
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Trying to write gay shit for the UT gays. Probably not gonna finish it in time but school ends soon so WOOOOO.
Edit: My muse has is off for Hot Girl Summer and I am left tragically unmotivated ;'(
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Trauma is quite similar to poison, seeping into your mind and robbing one's ability to continue on your life when every moment of your life is plagued with memories as dark as the abyss.
After Sans injured himself once again due to another vicious night terror, Alphys suggested they use the memory machine she had invented in order to understand what ails their skeleton friend with the kind of unwavering firmness that made Frisk remember why the amalgamates exist.
Even though Frisk had achieved the ultimate happy ending, it seems there was one last hurt to tackle - a hurt so rooted deeply into the confines of Sans' mind that it is shattering his soul slowly but surely.
A forgotten story will be learned.
Series
- Part 2 of Undertale Stuff
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Bright, Brighter, Yet Brighter by deal_at_the_crossroads
Fandoms: Undertale (Video Game)
26 Nov 2023
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The second chance at life of one Doctor W. D. Gaster on the Surface, as well as the struggles and triumphs of those around him.
(Previous series entries are not required reading)
[ON HIATUS]
Series
- Part 5 of Will Happen, Happening, Happened
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Screw the canon. Y’all ready for some cute gay and emotional healing? Yeah, me too…and it’s got KINGDINGS.
Frisk tells everyone about the mysterious man who speaks in hands, as well as the mysterious shades they found in the Underground. After finding a way to bring them all back, we get nice Dadster and sons time, as well as a nice amount of chapters with a few of my other personal favorite ships. Toriel and Asgore have decided to be friends, not exactly able to get back together after everything, but still caring enough about each other to not want to be cross forever. Toriel is the best mom, and Asriel and Chara are gonna come back eventually because I say so. Flowey will still be anround. Everyone gets a happy ending.
Asgore and Gaster are the main focus because I love the KingDings ship. Be prepared for these two to be pining for a while and everyone else just going nuts at how frickin oblivious these two are. Gaster and Asgore will both have their issues, but we get some nice comfort for them both. Gay dads are gonna be cute as fuck.
They’re be eventual smut later, and it’ll be very light. I guess if I write it well that I may do more later, but I’m not doing just a whole bunch. Enjoy all of these
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Things are peaceful in the Surface. Monsters were free at last. However one thing keeps bothering their savior.
In which Frisk has one more soul to save.
Series
- Part 1 of Post pacifist ending
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Upper Tale (An Undertale Post-Pacifist AU Series) by CosmoCrisis
Fandoms: Undertale (Video Game)
11 Mar 2023
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Just a bunch of my own Undertale Post-Pacifist Ending One-Shot stories. That's pretty much it, lol.
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So, they made it to the surface!! And it actually looks like they're here to stay this time, gotta love that.
Unfortunately, finally reaching their happy ending doesn't exactly erase the trauma's caused by every other failed attempt, and a lot of people are still far more in the dark than they should be.
But it's cool, they're on the surface! Everything's gonna be just fine now, right?
Yeah totally. -
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Sans has had the hots for his boss for a while now, but there's no way he can do anything about it, right?
(Gaster has other plans).
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(This follows shortly after "The Stage is Set")
Asriel and Dr. Gaster have been considering finally joining everyone on the surface, but Asriel is hesitant, due to the inevitable explanations he'll have to deliver. However, Chara is ready to start a "new game" and isn't about to let things go easy for him.
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A small fluffy headcanon I've had in my mind for a while.
Series
- Part 4 of Post pacifist ending
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After saving the Ambassador of Monsters from a member of the city's most notorious hate group, you're invited to become a member of Monsterkind's secret first line of defense against the powers that oppress them: Delta's Wings. Will you stand up and fight? Or will you crash and burn?
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This is a true pasifist AU where reader is Frisk who explores underground by acidentaly faling down.
Gets help from alot of monsters on her way home and monster freedom.Series
- Part 1 of StarTale- Pacifist AU
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There’s a small emergency in Dogaressa’s family and she and Dogamy need someone to watch their kids overnight. Papyrus volunteers and Sans volunteers Gaster. I made this into a post-pacifist AU where they somehow managed to bring Gaster back from the void.
Series
- Part 1 of Gaster Is Alive But Don't Worry About It