1 - 20 of 59,509 Works in Undertale (Video Game)
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The long running Undertale askblog by MegaFattyEX (https://askfriskandcompany.tumblr.com), now in ao3 form!
- Language:
- English
- Words:
- 0
- Chapters:
- 8/?
- Hits:
- 28
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Paper Mario: Trials of the Holy Hammer by Ma_Kir
Fandoms: Paper Mario Series (Video Games), Undertale (Video Game), Deltarune (Video Game), Super Mario RPG (Video Games), Super Mario & Related Fandoms
20 Sep 2025
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In a limited time only event, the Hero of the Mushroom faces a Hammer of Justice.
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Unwilling to kill to claim a soul—or to strike down the monster king to escape—Frisk chooses to stay underground. The monsters crown her their princess, and she grows up among them, a symbol of hope and peace.
But shadows from the past refuse to stay buried.
When the fragile peace begins to crack, Frisk must face what she's tried to forget. Alongside her childhood friend, Sans, she sets out to protect the only home she's ever known—and the people she loves—from a threat that spans timelines.
With original art. Inspired by Seventh Soul by 8TheKat
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The multiversal school askbox by Kuroi_Survivor
Fandoms: One Piece (Anime & Manga), Multi-Fandom, Undertale (Video Game), Fairy Tail, Undead Unluck (Manga), Naruto (Anime & Manga), Marvel Rivals (Video Game), Overwatch (Video Game), Dangan Ronpa Series, 原神 | Genshin Impact (Video Game), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Total Drama (Cartoon), The Hundred Line -Last Defense Academy- (Video Game), 君のことが大大大大大好きな100人の彼女 | Kimi no Koto ga Dai Dai Dai Dai Daisuki na 100-nin no Kanojo (Manga), 食戟のソーマ | Food Wars! Shokugeki no Soma, Pocket Monsters | Pokemon - All Media Types, 天空侵犯 | Tenkuu Shinpan, 東京卍リベンジャーズ | Tokyo Revengers (Manga), Record of Ragnarok (Manga), 武装少女マキャヴェリズム | Busou Shoujo Machiavellism | Armed Girl's Machiavellism (Anime), ハイスクール DxD - 石踏 一榮 | High School DxD - Ishibumi Ichiei, Blue Lock (Manga), Persona Series, Tekken (Video Games), Dr. STONE (Manga), GTO | Great Teacher Onizuka (Anime), Metaphor: ReFantazio (Video Game)
20 Sep 2025
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Summary
An askbox about a school filled with your favorite characters all around the multiverse getting into dirty scenes. Just have at it with the character currently available i will keep track with notes
Series
- Part 1 of Kuroi's askbox
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A-Z Female Collection by Jrobbo117
Fandoms: RWBY, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Cyberpunk: Edgerunners (Anime), Total Drama (Cartoon), Steven Universe (Cartoon), Mass Effect - All Media Types, One Piece (Anime & Manga), Helltaker (Video Game), Persona Series, Huniepop & Huniecam (Video Games), Highschool DxD (Anime), Street Fighter, 異種族レビュアーズ | Ishuzoku Reviewers | Interspecies Reviewers (Manga), She-Ra and the Princesses of Power (2018), Pocket Monsters | Pokemon - All Media Types, Monster Prom (Visual Novel), Monster Girl Encyclopedia, モンスター娘のいる日常 | Monster Musume no Iru Nichijou, The Owl House (Cartoon), Helluva Boss (Web Series), Rick and Morty, Dangan Ronpa Series, Overlord (MADHOUSE Anime), League of Legends, この素晴らしい世界に祝福を! | KonoSuba: God's Blessing on this Wonderful World! - All Media Types, Kill la Kill (Anime & Manga), Amphibia (Cartoon), Undertale (Video Game), Dragon Age - All Media Types, Yu-Gi-Oh! Duel Monsters (Anime & Manga), Adventure Time (Cartoon 2010), Trials in Tainted Space (Video Game), DCU, 碧蓝航线 | Azur Lane (Video Game), Ben 10 Series, Avatar: The Last Airbender (Cartoon 2005), NieR: Automata (Video Game), Kim Possible (Cartoon), Biohazard | Resident Evil (Gameverse), Five Nights at Freddy's, Sekirei (Anime & Manga), Limbus Company (Video Game), Stardew Valley (Video Game), The Powerpuff Girls (Cartoon 1998-2005), 逆転裁判 | Gyakuten Saiban | Ace Attorney, Hollow Knight (Video Games), どうぶつの森 | Animal Crossing Series, Fate/stay night & Related Fandoms, Awaria (Video Game), 宇崎ちゃんは遊びたい! | Uzaki-chan Wants to Hang Out! (Anime), Marvel, Mortal Kombat - All Media Types, The Ghost and Molly McGee (Cartoon), Bloodborne (Video Game), Danny Phantom, My Little Pony, Shingeki no Kyojin | Attack on Titan, Atomic Heart (Video Game), Metroid Series, Super Mario & Related Fandoms, 葬送のフリーレン | Sousou no Frieren | Frieren: Beyond Journey's End (Manga), 니케: 승리의 여신 | Goddess of Victory: Nikke (Video Game), Star vs. the Forces of Evil, Subverse (Video Game), ニセコイ | Nisekoi: False Love, Fallout (Video Games), Totally Spies, Foster's Home For Imaginary Friends, Borderlands (Video Games), Blue Eye Samurai (Cartoon), Splatoon (Video Games), Library of Ruina (Video Game)
20 Sep 2025
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A simple A-Z work that takes female characters from across the many fandoms and places them in a relationship. It will be character x reader. I am bad at writing and summarizing.
Edit: 5/12/24. By results of a vote individuals classed as femboy my appear in chapters. Basically its 'A-Z Female Collection, Now with Femboys' now so i hope people enjoy that.
Series
- Part 1 of A-Z Collections by Jrobbo117
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Summary
Monsters have appeared from a mountain, in your town! Interested in this new development you head home with high hopes. Sadly it seems humans will be humans, and for some reason you keep getting caught in the cross fire. Luckily you've made some new friends to help you out along the way!
You were just about to head into the nearby town when your phone went off, it was a text. From Otto of all people. A video of him, and what looked like monsters walking behind him. "You should come home (Y/n), things just got interesting."
Reader is female (sorry) there will be smut at some point, don't know when though...
Series
- Part 1 of Blood N Bones Stuff
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Deltarune: Red & Yellow by youraveragefanficreader1710
Fandoms: Deltarune (Video Game), Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
20 Sep 2025
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Summary
I don't have any vague summary.
But essentially, it's Deltarune with Undertale Red and Yellow sprinkled in.
Kris' SOUL is comprised of three souls, Frisk as the Red SOUL, Chara as the Black SOUL, and finally Clover as the Yellow SOUL.
This AU will also feature UT Yellow characters, integrated into Deltarune. Will they have significance? We'll just have to wait and see...
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Between the Lines by sansimp_3510, transmess
Fandoms: Undertale (Video Game), Deltarune (Video Game)
20 Sep 2025
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In a city that never sleeps, Tenna tries to keep control of their life while the lights of the show force them to smile. But behind the scenes, a conversation with Spamton stirs old wounds and secrets they thought were buried. Between the pressure of the cameras and sharp words, an unexpected tension arises with Mettaton — a silent game of glances and half-truths. Nothing is entirely honest, yet nothing is completely false. In a world where every gesture is watched, one wrong move could change everything.
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Two Old Men by oldman_turtle1782
Fandoms: Deltarune (Video Game), Undertale (Video Game)
20 Sep 2025
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Summary
Gaster is experiencing the insanity of living in a void, where he's extremely lonely. He has his player, and his Deltarune, but nobody else.
Until someone comes along for a bit.
A turtle yaps on about life, and the skeleton of what's practically a smaller godzilla listens. And then more happens!
(AKA: Author saw there were no gerster fics, and being the biggest gerster shipper alive in the 3 that exist, had to make one! thanks for everyone who supported me, couldnt do it without ya :3)
- Language:
- English
- Words:
- 2,919
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 8
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Summary
Demon Hunting is practically the family business.
When you were a child, a demon killed your entire family. You were taken in by the same guild your parents worked for. The last demon hunter of your family, you want to prove that you can succeed in the legacy. You trained your entire life to take vengeance on the creatures that ruined your life.
You finally got your chance when your initiation exam was scheduled. Fate decides that you will change history in a slightly different way than you had thought. You never could have anticipated running into the Seven Deadly Sins themselves on your first night out.
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I miss you by GhostAndStar
Fandoms: Undertale Yellow (Master Sword Video Game), Undertale
20 Sep 2025
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Summary
Spoilere for utry duh,,,,dont reaf thus if you havent watched the true pacifist ending stupid
Imagine losing someone you deeply cared about for who knows how long?
Not like Clover had to imagine- Language:
- English
- Words:
- 773
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 17
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Summary
Lust, a captivating massage therapist, finds solace in two unlikely relationships with Red, a fiercely protective teacher, and Dance, an exuberant skeleton with a traumatic history. As they celebrate the anniversary of their unconventional love, a dark twist shatters their fragile happiness.
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AnimaticsKnife's request book! by AnimaticsKnife
Fandoms: Object Fool (Web Series), Objectified - Chester Fernandez (Webcomic), Hello Kitty - All Media Types, It's Time For The (Web Series), Battle For Dream Island (Web Series), Deltarune (Video Game), Undertale (Video Game), Mahou Shoujo Madoka Magika | Puella Magi Madoka Magica, Cookie Run (Video Game), Welcome Home - Clown Illustration, Animator vs. Animation (Short Films - Becker), BURNER - Sacri (Web Series), My Little Pony Generation 4: Friendship Is Magic (Cartoon 2010), Warriors - Erin Hunter, Dandy's World (Roblox), アグレッシブ烈子 | Aggressive Retsuko | Aggretsuko (Anime), She-Ra and the Princesses of Power (2018), ENA - Joel G (Web Series), Sonic the Hedgehog - All Media Types, Cult of the Lamb (Video Game)
20 Sep 2025
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I'm a bit bored and I don't know what to write so I'll happily make one shots of the fandoms listed in the tags!
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He’ll miss that monarch.
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To Trust Again by MidnightMare247
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Anime), 呪術廻戦 | Jujutsu Kaisen (Manga), Undertale (Video Game)
20 Sep 2025
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After retiring from one of the most feared gangs in the country, Sukuna has settled into an ordinary life as a tattoo artist living in Austin, Texas. Despite the monotony of his routine, he’s satisfied with being alone. He’s only ever lived for himself and doesn’t care to change that.
Until one night, he gets a call from a social worker informing him of a distant relative, a 12-year-old orphan girl who he’s never met.
On a whim, he decides to take her in.
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Three years ago, a brother left his sister to search a mountain that no human has ever returned from.
Three years later, the sister, desperate for answers, follows her brother's footsteps.
The two meet again, but the result is likely the most hectic two weeks of their lives. And one of them has already lived an eventful life.
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Forever is a long time to be with the one you love. Especially when it means going against everything you once knew.
- Language:
- English
- Words:
- 1,662
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 7
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Timeless Justice by TheDoctorWD
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
20 Sep 2025
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Summary
After countless resets and endless repetition.. something has changed. The timeline has began shifting, changing its path for the first time in a long time. A new path Flowey hasn't seen before.
Well, it might take Clover longer to reach Asgore but Flowey has all the time in the world after all. And seeing something new finally happen has piqued his curiosity. Drawn in by the unfamiliar, Flowey watches with morbid fascination as Clover is not able to give up his soul this time. Encounters shift, monsters react differently, and the world itself begins to remember things it was never meant to.
Events shuffle. Characters act out of turn. Rooms appear where there were none. And for the first time in countless resets, Flowey doesn't know what comes next. Clover's fate is uncertain. Though Flowey knows he will get those human souls, no matter what.
Series
- Part 1 of Fractureverse - UT/UTY/DR
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fairly mediocre game show by fellow_existor256
Fandoms: Internet & Social Media (Anthropomorphic), Among Us (Video Game), Playstation 3, Real Person Fiction, Roblox (Video Game), A Hat in Time (Video Game), Skibidi Toilet (Web Series), Family Guy (Cartoon), Minecraft (Video Game), Persona 5, Postal (Video Games), Political RPF - US 20th c., OMORI (Video Game), Wii Sports (Video Game), Morbius (2022), Christian Bible, Super Mario & Related Fandoms, Chess Pieces (Anthropomorphic), Serious Sam (Video Games), Undertale (Video Game), Rudolph the Red-Nosed Reindeer - All Media Types, Crossy Road (Video Game), どうぶつの森 | Animal Crossing Series, Ghostbusters - All Media Types, ULTRAKILL (Video Game), Moana (2016), Vocaloid, The Binding of Isaac (Video Game), Spooky's Jump Scare Mansion, Five Nights at Freddy's, Phineas and Ferb
20 Sep 2025
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Summary
an ao3 gameshow where 24 characters of varying popularity get kidnapped and forced to participate in a game show but now with slightly less coherency
Series
- Part 1 of fairly mediocre works
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Multiversal Cartoon Survival S1 by JLeroi7261h823
Fandoms: Naruto (Anime & Manga), South Park, SpongeBob SquarePants (Cartoon), OMORI (Video Game), Five Nights at Freddy's, Diary of a Wimpy Kid Series - Jeff Kinney, Undertale (Video Game), Vocaloid, Kirby (Video Games), Miraculous Ladybug, Pikmin (Video Game), The Epic Tales of Captain Underpants (Cartoon), The Boondocks, 妖怪ウォッチ | Yo-Kai Watch, Super Mario & Related Fandoms, Luigi's Mansion (Video Games), Family Guy (Cartoon), Kick Buttowski, Kindergarten (Video Games 2017 2019), Friday Night Funkin' (Video Game), Tom and Jerry (MGM/Hanna Barbera Short Films)
20 Sep 2025
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Characters from different Universes(Fandoms) come together to compete against each other, where only one can be the winner. The Prize: Any type wish they want within reason. There will be Alliances, Betrayals, Shenanigans, Drama, and Most Importantly Chaos.
Who will be the Winner???
Find out now(This is my first post so pls be nice)
Series
- Part 1 of Multiversal Cartoon Survival