1 - 20 of 51 Works in Post-Undertale Neutral Route - King Mettaton Ending
Navigation
Listing Works
-
Tags
Summary
Mettaton and Muffet become the king and queen of the Underground after Asgore's tragic death. Will they do a good job or is the power getting to their heads?
This was originally supposed to be an AU so if it doesn't follow the timeline perfectly or characters act different, that's why.
- Language:
- English
- Words:
- 8,408
- Chapters:
- 3/?
- Hits:
- 22
-
Tags
Summary
메타톤 즉위 엔딩 이후 혁명으로 축출해낸 메타톤에게 이것저것 하는 내용
- Language:
- 한국어
- Words:
- 817
- Chapters:
- 2/?
- Hits:
- 29
-
King Mettaton (and Royal Advisor Alphys) Ending by orphan_account
Fandoms: Undertale (Video Game)
29 Jun 2025
Tags
Summary
Your post-playthrough phone call from an old friend. What if Alphys and Mettaton ruled the Underground together? Could it have been a happier ending?
Story is told entirely in embedded text images.
-
Hooray! King Mettaton Episode! by datm, grayishaffinity, MinkyMomouuu, visibrans, WPuppetMar
Fandoms: Undertale (Video Game)
06 Jun 2025
Tags
Summary
PRIMARILY WRITTEN BY MINKYMOMOUUU AND GRAYISHAFFINITY!!!! DON'T TRUST THE ALPHABETICAL AO3 USERNAME LIST!!!
Alphys turned to Mettaton. “I, um.. need a.. a moment to think about this. I’ll see you later.”
“Wait, Alphys!” Mettaton tried to reach out to her, but she was already walking toward the basement elevator. “I'm here if you need to- ..talk," She probably wasn’t listening anymore.
And with the way she said it, Mettaton wasn’t sure he would be seeing her ‘later’.
Series
- Part 1 of HKME
-
Tags
Summary
It's been 10 years since Mettaton took over the Underground. Anne, a 15 year old girl, falls down after trying to check if a message she hears in an old phone she finds is real. Anne arrives at the Underground, oblivious to the dangers in the kingdom, except for bits of information from the message. Throughout her journey, Anne discovers the truth about the Underground with the help of other monsters and she also discovers some things about herself.
Royal Bullet's plot extends parts of Undertale's canon plot, and contains some headcanons of mine.
Special thanks to my beta reader, thelegendofmudkip: https://thelegendofmudkip.tumblr.com/
-
Tags
Summary
This has very little romance in it, I just thought it would be really fun to write a sex scene between Mettaton and Papyrus. In this version, Mettaton is king of the Underground and also a huge slut. Lots of goofiness will ensue. Lots of dumb shit as well.
- Language:
- English
- Words:
- 3,788
- Chapters:
- 1/1
- Kudos:
- 30
- Hits:
- 604
-
Tags
Summary
A few years after the main events of UNDERTALE, another human has fallen into the underground. They begin to explore, getting to know the monsters, and not really wanting to return to the surface after meeting the undergrounds people... But there's something up with the world the publicly glamorous king has created.
Can the 8th human help the king figure out how to run his society without burning it to the ground, and finally work out and manage his own hidden heartache?
Who knows?
I haven't decided if I'm going to give this a happy ending or not<3ON TEMPORARY HIATUS
-
Tags
Summary
When Mettaton became king, he planned on building statues of himself, holding lavish parties, and generally making the Underground his personal paradise.
When Papyrus became the king’s agent, he planned on wearing suits, making phone calls, and serving his king to the best of his ability.
Neither of them planned on falling in love.
Nor did they plan on what came after.
-
Tags
Summary
国王Mettaton结局背景
请阅读预警 -
Who Cares if a Few People Have to Die? by orphan_account
Fandoms: Undertale (Video Game)
31 Dec 2023
Tags
Summary
Normally Mettaton would simply brush off his haters. However, now that he is king, he can make them simply... disappear.
-
Tags
Summary
Alphys survives, and comes back to a… very different Underground.
-
if you're cursed with the thirst of a lonely man by orphan_account
Fandoms: Undertale (Video Game)
08 Feb 2023
Tags
Summary
with frisk safely back home in the human world, mettaton is the king of the underground. his precious blooky is able to become corporeal to live by his side in the newly-ruled kingdom, although... the former ghost's innocence is certainly not going to stay for very long living with mettaton.
first part is mettaton's pov, second is blooky, and third is both of them
-
Tags
Summary
Он выбрал бы не себя и, как знать, она бы это оценила.
- Language:
- Русский
- Words:
- 324
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 30
-
Tags
Summary
A few weeks into King Mettaton's reign, a new show is broadcast at night, on every channel: a soft swirling spiral that instructs the viewer to watch and obey...
-
flowey the flower's annotated guide to tolerating the end(less cycle of worthless garbage) by johnchurch
Fandoms: Undertale (Video Game)
16 Jul 2022
Tags
Summary
If anyone could possibly pitch Flowey the idea of a more boring place in Hell, he’d love to hear about it.
(Or; this time, Flowey must go on past the "ending".)
-
Tags
Summary
“Thank you all for coming out to this month’s MTT-Brand Glam Gala™, the only celebration in the Underground sponsored by your ravishing ruler.” Mettaton posed, lifting one of his gorgeous legs up through a slit in his dress.
…It would also be easier for Papyrus to do his job if his boss weren’t so, er, ravishing.
(Or: Papyrus saves King Mettaton from an assassination attempt, and tries to convince him not to do another violence.)
Series
- Part 29 of Undertale/Deltarune Tumblr Requests
-
Tags
Summary
Mettaton has to deal with the guilt of his actions as King of the Underground, and Papyrus has no intention of letting him suffer alone.
(For @keyozee on Tumblr for the Undertale Secret Santa!)
Series
- Part 11 of Gift Fics
-
Tags
Summary
Sans just can't win. His world is anything but kind to him, and it's only getting worse. Meanwhile, an estranged enigma is ceaselessly beckoning, promising truth or annihilation. Is it more dangerous to follow a demon, or to lose himself in an unraveling world? Perhaps he's already forgotten too much to know the right answer...
-
Tags
Summary
"You didn't have to nit-pick my brain you know that?" It was like a stab went through her heart as she looked up at him. "I just wanted- I just wanted to help" Alphys' eyes grew redder as tears dripped down her chin. "I know dear, but there's a reason I don't tell you these things" his tone frightened her. Mettaton was at his breaking point though he'd never admit it. Everything would be back to normal in a few hours and he'd be fine. No one would have to know what was going through Mettaton's head in those few days he lost control of his emotions.
-
Tags
Summary
The world was ablaze in pink, glittery flames, and it was because of him.