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Long live the Monarch! by urmom_friskas for Alexandra_green
Fandoms: Undertale (Video Game)
07 Sep 2025
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After King Asgore’s death, the Underground was left leaderless. Gravely injured from her fight with the human, Undyne was in no condition to rule, so Mettaton stepped in to take her place until she could recover. However, after some time he vanished, forcing the monsters to search for a monarch once more. Then, quite unexpectedly, Alphys proposed a candidate…
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Frisk and Leo (the Bravery SOUL human) have been friends forever, since they were babies. Now, the two 10-year-old children are drunk, chubby and currently at the bottom of a mountain in an underground civilization of monsters...but a True Reset says that this will be a first for both of them, so it's up to two drunk kids to guide themselves back home - without dying, that is.
(DISCLAIMER: DUE TO LACK OF INFORMATION ON THE OTHER FALLEN HUMANS, MOST STUFF LISTED HERE ABOUT THE BRAVERY SOUL HUMAN, WHO I'M CALLING LEO, WILL BE MY PERSONAL INTERPRETATION. DO NOT TAKE ANYTHING LISTED HERE AS FACTUAL INFORMATION ON THE BRAVERY SOUL HUMAN).
CW: Drunk Children, Fantasy Violence, Partial Nudity (not shown or described), Minor Weight Gain Elements.
Series
- Part 1 of Undertale: Partners AU
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The Doctor's Descent by Feanyx1
Fandoms: Undertale (Video Game), Doctor Who (2005), Deltarune (Video Game), Doctor Who
01 Sep 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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The story of the human and monster war, now days just another bedtime story, but that is for the humans. Monsters live trapped underground, they have gone through famines, epidemics, lost of hopes and dreams, and all because the humans were scared of them. Hope came back when finally, a "human" fell down. But it just brought more misfortune.
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Fanart of fics I like by Froggy_bot
Fandoms: Undertale (Video Game), Original Work, Life Series | 3rd Life SMP Series
29 Aug 2025
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This is just going to be a dumping ground for all the fandom related art I do. Some might be of fanfics, others may just be an AU of my own creation.
Comments and kudoses are very appreciated!
Requests are open!!!
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Don't bear the weight of the world alone by SkyWatcher3
Fandoms: Undertale (Video Game), Undertale Yellow (Video Game)
24 Aug 2025
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After her fight with Clover in New Home, Ceroba, in the middle of rethinking her entire life, chooses to save one child's life, and the consequences of her decision changes the fate of the entire Underground forever.
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GOOPY KITTY // AMALGAMATE MAD MEW MEW AU INFO by silverstormsxx
Fandoms: Undertale (Video Game)
18 Aug 2025
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what it says on the tin.
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Gather children, listen well, harken to the Under Tale.
A story of a small child, falling into a massive cavern where monsters have made their home. With the help of a certain phantom, the child makes their way through the Underground, making friends & family along the way.
I own absolutely nothing in this. Undertale, along with with characters, setting, etc., belong to its respective owners, who are not me.
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Twisted Karma by IFBench
Fandoms: Undertale (Video Game), 逆転裁判 | Gyakuten Saiban | Ace Attorney
11 Aug 2025
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It had been two weeks since the legal world had been turned upside-down from a certain attorney's disbarment.
Franziska von Karma has had enough of it all, and takes a vacation from her job to investigate a mystery of disappearing children.
Legends say that those who climb Mount Ebott never return.
But a von Karma is perfect. A von Karma won't be bested by a simple mountain.
Right?
(In which Franziska von Karma falls into the Underground.)
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Imagine if the person who fell to the UNDERGROUND wasn't Frisk? What if it were someone completely different, someone in control of not only their choices, but their powers as well? Meet Grace, a young adult who just happened to be walking through the woods the same day Frisk decided to fall. Grace managed to SAVE Frisk from their usual fate, but only in exchange for hers; Grace falls down into the UNDERGROUND. As she makes friends and walks through the UNDERGROUND, read to see how a different character might have made her decisions on the same path an innocent child took - and how she might ruin it.
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Not Kevin's Insanely Nonsensical Elimination Series. by NeverShrek1ForSomeReason
Fandoms: Battle For Dream Island (Web Series), Spooky's Jump Scare Mansion, Animator vs. Animation (Short Films - Becker), Super Mario & Related Fandoms, ONE - Cheesy Hfj (Web Series), SMG4 (Web Series), It's Time For The (Web Series), Cookie Run (Video Game), Five Nights at Freddy's, Object Fool (Web Series), Paper Mario Series (Video Games), A Hat in Time (Video Game), Undertale (Video Game), Don't Hug Me I'm Scared (Webseries), Henry Stickmin Series (Video Games), Inanimate Insanity (Web Series), OMORI (Video Game), how the fuck do you tag the raw salmon series.
30 Jun 2025
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Now, what do you think happens when you combine a technological genius, a group of characters, an empty universe, and an unconfirmed prize up for grabs?
The expected is not expected.
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The forests of Underfell are expansive. When the Fell brothers investigate in one of the worst blizzards of the Underground, they find something unexpected.
Series
- Part 1 of A Rogue What?!
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Kingdomtale part 1 (pacifist series) by melodic_melodies
Fandoms: Undertale (Video Game)
01 Jun 2025
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A long long time ago two races roamed the earth, humans and monsters. One day war broke out between the two kingdoms that shared the land. The humans won the war and used magic to seal up the monsters on one half of the kingdom using a barrier, blocking all existing routes by mountain and by sea around the land.
*You can see a sign in the distance. It reads Mt. Ebbot, year 15XX.*
Warnings and description: might contain mentions of abuse, violence, death, potential mentions of rape? depression, attempted suicide, cursing, romance, weird/Toby logic and ships. If any of these topics bother you I suggest you go and read something else. Also this project has been a long process so I do apologize if some things feel inconsistent, remember though this is just one part of a huge AU series I am writing and things will be fully fledged out over time. Frisk is a girl but only uses nonbinary pronouns unless stated otherwise. Frisk is also gonna be unnamed for most of the three part series as I decided it would be cool to keep it close to cannon that way and have Frisk go unnamed until after the final boss fight. You will most likely hear Frisk mentioned a lot as “human,” “child,” or ”kid/kiddo.”
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Another human falls, tumbling face-first into the damp rot of Waterfall. When they call out for help, nobody comes— only the weight of something dark and heavy, locked just behind their racing heart.
No tutorial. No resets. No mercy.
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Luck Is on Your Side by Dark_Xenon
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
12 May 2025
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The smallest of changes just before the epilogue can cause the entire ending to change.
A small attempt at comfort has had massive reprecussions... But it's unlikely anyone involved will complain about what happened.
Once they all learned that it happened that is.
Lost in an Underground that's painfully familiar yet completely unknown to them, with two different forces calling out to them, a monster with no memory of who they are or where they're from is forced to grapple with how they came to be.
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Wilting Into Nothing, an out-of-this-world TV show broadcasting the miserable life of a soulless flower!
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What Happens After Undertale After Ending 41. Mettaton, Asgore, Flowey and Alphys are dead. Toriel is Queen, Udyne is betrayed, Sans Takes Care Of The Amlagmates.
- Language:
- English
- Words:
- 508
- Chapters:
- 1/?
- Kudos:
- 2
- Hits:
- 68
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It's Raining Cats & Spiders (NSFW Version) by unluckysynth
Fandoms: Undertale (Video Game)
12 Apr 2025
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Mew Mew visits Muffet's Bakery out of desperation, leading her into a surprising and romantic turn of events.
This is the NSFW version.
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Mew Mew visits Muffet's Bakery out of desperation, leading her into a surprising and romantic turn of events.
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Rootin' n' Tootin' by Veloo
Fandoms: Undertale (Video Game), Undertale Yellow (Video Game)
10 Apr 2025
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After defeating Ceroba, Clover takes a moment to think about what to do.
Starlo joins them and the two talk. Clover asks something that changes their fate.