1 - 20 of 64,057 Works in Undertale (Video Game)
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Papyrus writes a letter to his dead father. He has some things on his soul he needs to let out.
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One shot written for "Let Papyrus say fuck" day 2026.
- Language:
- English
- Words:
- 880
- Chapters:
- 1/1
- Hits:
- 0
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The RougeRiddler's been named! Also there's a weird hole in the sky again! Finally several new enemies have reared their heads!
Warning: This Fanfic is not accurate to Undertale canon as the authors didn’t play Undertale when this was written and were 12. This is Book 8 of 9! This is the last complete book in the series! The next book consists of one complete chapter and one uncomplete.
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A collection of stories from the shared universe of Undertale by Toby Fox, Undertale Yellow by Master Sword, and Undertale Red & Yellow by Shinix, focusing on the Cocoa Powder ship between Chara and Clover.
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What happens when the soul persists? When a guardian is left adrift without a body or a soul, merely existing?
Well beings beyond their realm take interest.Pulled into the Void, Nightmare finds it in himself to try to take back his life. Will he be able to with the power of a Tenno welling within him?
And how long is too long to reunite with family?I’m waiting for word from the hospital for important shiz and Warframe is my only saving grace right now keeping me sane. And my mind always goes back to undertale when things are chaotic so ah… this idea spawned?
Nightmare was caught up in millenia of torment from his perspective until a trapped Operator (Ayatan) found him. Pulling him out of his endless torment to form a pact.
I whole heartedly blame you Eclipse for this first chapter. That Octavia quote was too golden lol -
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You were just trying to get home from work on a late night. That was it. However, now you're stuck in a different world, and technically a different body. You try to make your way in this odd world and try to figure out how the hell to get back to your world. That's not such an easy feat when you don't know the first thing about the multiverse or how you even got here in the first place.
It doesn't help that at seemingly every corner, there's a skeleton berating you for something you didn't do. And every time you try to ask what it is that you did, they claim you already know what you did. Whatever it was that 'you' had done, it had to be pretty bad for these monsters to be threatening your life...
What the fuck did you do?
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Trust Issue by ballistic_Renegade
Fandoms: Deltarune (Video Game), Undertale (Video Game)
16 Jun 2026
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A story about a strange encounter between a simple mailman and his not-so-simple neighbor.
Or, how one rainy evening, Spamton finds Tenna injured near his house. What harm could come of lending a helping hand? ...Right?
Series
- Part 1 of Null!Tenna\Ut!Spam AU (eng)
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"You've all seen the happiest outcome. Neither of them could fix the machine, no matter how hard they tried. Nobody can."
Sans thought he could be happy in this world. And for a while, he was. He genuinely was.
But after waking up with knowledge he doesn't even remember getting, he started to think that maybe this world isn't as real or safe as he thought. So he resorted to trying to get his brother and himself out of there at any cost!
Any cost.
[WARNING: This fic is part of a series, so there may be references to previous fics! If you don't want to get spoiled or get confused by the references to past events in this fic, I recommend you read Snowdin Adventures With The Skeletwins first!]
Series
- Part 2 of Skeletwins
- Part 2 of Skeletwins In Chronological Order
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Nightmare takes in a new pet. If Cross would just realize that it was only for his best.
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Once upon a time there was a tree . . .
(Dreamswap)
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- Part 1 of Two of a Kind
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But the Game Refused to Die by FelCJ
Fandoms: Gameoverse (GLITCH Web Series), Undertale (Video Game)
16 Jun 2026
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Farcade and Syntax find themselves exploring the game world of Undertale.
During a genocide route.
Everything goes about as well as you'd expect.
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Disaster Coded || Error x Reader by Strawberry_Milk_Snake
Fandoms: Undertale (Video Game)
15 Jun 2026
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There's only one rule for those capable of AU hopping: never bring a real person into the Undertale multiverse. But, like all rules, it was destined to be broken.
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It's 9 O'clock On a Saturday, by Multi2134
Fandoms: Deltarune (Video Game), Overwatch (Video Game), Elden Ring (Video Game), Elden Ring Nightreign (Video Game), Warhammer 40.000, Halo (Video Games) & Related Fandoms, Metal Gear (Video Games), Half-Life (Video Games), Portal (Valve Video Games), Team Fortress 2, Undertale (Video Game), Steven Universe (Cartoon)
16 Jun 2026
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With the stresses of an incredibly difficult modern day life, it's easy to fall into the habits of daydreaming about ones favorite books, movies, or games.
A man forgets his own name during a graveyard shift in a Chicagoland suburban bar.
Maybe these folks will help him find it?
Heavily inspired by my time in the service industry! Feel free to drop characters who you'd like to see in the comments :)
Series
- Part 1 of "Entertainment," Spoke the Sovereign.
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Who's the real monster here? by SingularityPoint
Fandoms: Fundamental Paper Education (Web Series), Undertale (Video Game)
16 Jun 2026
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Engel hates it.
It's almost as if God is laughing at him and making him a cosmic joke.
He's forced to be in this fucking loop, unable to do ANYTHING but watch Claire die to Alice's hands.
The 137th RESET, he's decided that he's had enough.
He broke.
And what was left...
Was a MONSTER. -
Wing Ding Gaster’s Wellness Dept. by freakyfido672
Fandoms: Deltarune (Video Game), Undertale (Video Game), US Presidency - Fandom
16 Jun 2026
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Mettaton goes to the gay hospital after getting punched by bill cipher and joins a gay polycule.
Series
- Part 2 of Deltarune but it’s gay and crack
- Language:
- English
- Words:
- 1,478
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 19
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Summary
Dream wakes up, wakes, up, wakes up, and finds themself with Dream and Dream and Dream and- what?
don't worry, no one else knows what's going on here either
Series
- Part 2 of Undertale Extended Multiverse Fics
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One moment, you’re living a dull life, following the same routine day after day. The next, you wake up trapped in a cold, unfamiliar place, surrounded by bars and creatures that aren’t human. Your purpose here? Maid. At least, that’s what they say. But there’s more to this dark, twisted world than simple tasks. The figures watching you from the shadows have their own plans, and you're nothing more than a pawn in their game.
is this good enough or what? JUST READ IT ALREADY!
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At the last moment, Asriel couldn't go through with Chara's plan to save the underground. They were already very ill and near the brink of death, but with their family's help, they managed to pull through. The attempt left permanent damage.
Now, years later, the Angel of the Underground faces mounting pressure to fulfill the prophecy and their worsening health. Luckily, the Royal Advisor, Carol Holiday, has a good-for-nothing daughter that has nothing better to do. And so, Dess is assigned to aid them in whatever ways possible as their Lady in Waiting.
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Justice and Hope by BagelJustice
Fandoms: Undertale Yellow (Master Sword Video Game), Ori (Moon Series Video Games), Indie Cross - MORØ (Web Series)
16 Jun 2026
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Ori is Hope lol
this fic is based off of a dream I had :D
Ori and Clover in indie cross :3
Ori is from right at the start of Baur's Reach, having gotten all of the other wisps possible. Because that is where I am at the game currently :P
not really sure where I'm gonna take this but for now it's general audience :P -
A book of random ships, /reader’s, and head-canons by Jesterofthings
Fandoms: Multi-Fandom, Dog Man (2025), Detective Comics (Comics), Batman - All Media Types, Ib (Video Game), Inscryption (Video Game), Deltarune (Video Game), Undertale (Video Game), Date Everything! (Sassy Chap Games Video Game), The Boy (Movies - Bell), Doki Doki Literature Club! (Visual Novel)
16 Jun 2026
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As the title says it’s a book of all sorts of things. Originally posted on Wattpad, posting here on request of a friend may be absolute crap because I’m a lowly Wattpader
for the /reader’s I will mostly do male and gender neutral but on request I can write female reader
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Skull wasn't Skull, Checkerface needed a Cloud.
He really should have made sure they never ever rememberedSeries
- Part 17 of Stories Of The Rainbow Chosen