1 - 20 of 71 Bookmarked Items in Amalgamation (Undertale)

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  1. 4

    And We Give It All We Got by

    Fandoms: The Amazing Digital Circus (Web Series)  

    09 Oct 2025

    Tags
    Summary

    Is it wrong to want things to be better and actively advocate for it? Is it wrong to want things to change? In a world of complacency that is very much content living behind the cities' walls and away from what they call the Amalgamation, Joy Wielders (users that harness a power called Joy) are few in numbers and can only do so much. A young Joy Wielder who has trouble harnessing and controlling her power wishes for things to be different in her little world when disaster sends her spiraling towards a dangerous journey. Spurred on by the voice in her head, she needs to find a way to beat back the Amalgamation and help out a missing troupe lost to time.

    Language:
    English
    Words:
    23,573
    Chapters:
    5/?
    Comments:
    6
    Kudos:
    26
    Bookmarks:
    4
    Hits:
    697

  2. 13

    the games we play by

    Fandom: Undertale (Video Game)

    27 Nov 2025

    Words:
    108,330
    Works:
    2
    Bookmarks:
    13

  3. 72

    promises on the reaping by

    Fandoms: Undertale (Video Game)  

    14 Jul 2025

    Tags
    Summary

    “As always, humans first.”

    The crowd was silent, clearly unenthusiastic. You tried not to think about your odds — it never did you any good. What was six slips of paper as opposed to hundreds?

    With a shaky breath, you quelled the hammering in your chest. It will be okay. You do this every year, right? Every year, you come to the square, watch two members of your community be sentenced to certain death, then go home and silently contemplate the conditions of your world. That’s how it went every year, and you were certain that is how it would go this year.

    So when the cold metallic voice announced your name over the loudspeaker, you could feel your heart stop.

    Ice shot down your veins and a ringing filled your ear. You thought you could hear your mother scream, but she sounded so far away, you could barely register it. Was it really… it was you?

    Another announcement of your name, followed by a sing-song, “come up here, darling!” confirmed yes, you. You were the human tribute of District 12 in the seventy-fourth annual Games. 

    Series
    Language:
    English
    Words:
    97,302
    Chapters:
    15/15
    Comments:
    271
    Kudos:
    379
    Bookmarks:
    72
    Hits:
    6,009

  4. 9

    A Former Royal Scientist’s Research of the Space Time Continuum by

    Fandoms: Undertale (Video Game)  

    04 Dec 2025

    Tags
    Summary

    A little bit of rest during her research could definitely hurt, yet her eyes began to shut anyway. The consequences to this were much more dire than Queen Alphys could’ve ever expected, and after an abnormal earthquake she finds herself stuck within the endless Multiverse.

    And for some reason Sans is.. everywhere??

    OR

    Takes place right after the Alphys Neutral Ending, where a freak accident sends Queen Alphys - better yet, just Queen - out on a travel through the Multiverse.

    Series
    Language:
    English
    Words:
    8,113
    Chapters:
    3/?
    Comments:
    27
    Kudos:
    24
    Bookmarks:
    9
    Hits:
    190

  5. 20

    Excuse Me, Miss Ketsukane by

    Fandoms: Undertale Yellow (Video Game)  

    29 May 2024

    Tags
    Summary

    There have been a lot of rumors floating around recently. The barrier shattered, "fallen down" family members returning, true hope for the future of monsterkind... things like that. Things much too good to be true.

    Everyone around Ceroba believes it all without question, and eventually she's pushed to investigate. But maybe those rumors aren't as false as she initially believed. Maybe she was a bit too quick to judge.

    And maybe she can see the Surface. Maybe she can see her little girl again.

    Language:
    English
    Words:
    7,641
    Chapters:
    3/3
    Comments:
    45
    Kudos:
    135
    Bookmarks:
    20
    Hits:
    3,650

  6. 2

    Longfics by

    Fandom: but not a crossover kinda situation, Forsaken (Roblox), Undertale (Video Game)

    07 Dec 2025

    Words:
    53,821
    Works:
    3
    Bookmarks:
    2

  7. 86

    Desert Sanctuary Guidebook by

    Fandoms: Undertale (Video Game), Undertale Yellow (Video Game)  

    27 Nov 2025

    Tags
    Summary

    Clover doesn't give up his soul because justice still needs to be delivered.

    The Wild East, and later practically the entire Dunes, declares independence. They declare that any human within their borders is under their protection.

    Civil War looms over the Underground.

    Would you like to see what happens?

    Note: This is NOT a story. This is an archive containing information about my AU, Desert Sanctuary. I might write a proper story in the future, but for now, this is where you can read about the narrative, the characters and how this massive change affects Frisk's journey.

    Fanart and other fan works based on Desert Sanctuary are welcome and encouraged

    Language:
    English
    Words:
    73,588
    Chapters:
    29/29
    Comments:
    315
    Kudos:
    831
    Bookmarks:
    86
    Hits:
    28,795

  8. 16

    Fate Drift by

    Fandom: Undertale (Video Game)

    08 Aug 2023

    Words:
    61,628
    Works:
    22
    Bookmarks:
    16

  9. 13

    Adventure Tale by

    Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Deltarune (Video Game), Adventure Time (Cartoon 2010)  

    05 Dec 2025

    Tags
    Summary

    After countless runs, something goes wrong, and now humans and monsters alike have been pulled into a strange new land with its own rules and its own dangers. Come Along With Me for the crossover nobody asked for, its ADVENTURE TALE!"

    Series
    Language:
    English
    Words:
    27,934
    Chapters:
    11/?
    Comments:
    21
    Kudos:
    58
    Bookmarks:
    13
    Hits:
    1,982

  10. 2

    Adventure Tale Collection by

    Fandom: Adventure Time (Cartoon 2010), Deltarune (Video Game), Undertale (Video Game), Undertale Yellow (Master Sword Video Game)

    05 Dec 2025

    Words:
    32,075
    Works:
    2
    Bookmarks:
    2

  11. 12

    Standing in the Light by

    Fandoms: Undertale (Video Game)  

    07 Jul 2025

    Tags
    Summary

    You fell chasing your little sister. Now, disguised as a monster, your gambling everything to get Frisk out alive—including trusting a lazy skeleton who sees through her lies. With Asgore’s knights closing in and the king needing one last human soul, survival demands shortcuts through glowing caves and MTT Resort glitter. But Sans’s bone-dry wit and hidden power blur the line between using him… and losing your heart underground.

    Neutral Route | Slowburn Sans/Reader | Found Family | Protective Siblings | 2016 Undertale fic vibes

    Language:
    English
    Words:
    37,369
    Chapters:
    11/?
    Comments:
    25
    Kudos:
    49
    Bookmarks:
    12
    Hits:
    983

  12. 2

    the true lab. by

    Fandoms: Dangan Ronpa Series, Undertale (Video Game)  

    22 Aug 2025

    Tags
    Summary

    “There used to be two boys I hung out with,” Nagito tells her. “They were twins. Hajime and Izuru. I didn’t know their circumstances, but we knew each other.”

    The snow is cold, in snowdin. Chiaki shivers into her kitten hoodie, watching Nagito as he watches the distance. “I think you would have liked them.”

    “What happened to them?” Chiaki asks him.

    He turns to her, smiling, “They fell down. It’s— a natural illness of monsters, sometimes. A state close to death, what you humans call a ‘coma’. They were taken by the royal scientist and her assistant. They were as good as dead anyway, so it didn’t seem like a problem that they would be used in research to break the barrier.”

    Chiaki shudders, “So they… They’re dead?”

    “See, that’s the thing,” Nagito says. “We never got their dust back.”

    [KomaHinaNami Week 2025 Day Six: Fantasy AU/Other AU.]

    Series
    Language:
    English
    Words:
    653
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    21
    Bookmarks:
    2
    Hits:
    303

  13. 4

    Filled with Determination... by

    Fandoms: Deltarune (Video Game)  

    12 Oct 2025

    Tags
    Summary

    ...but not in a good way.

    OR:

    The SOUL made a horrible lapse in judgement when handling the Weird Route, and Kris has to pay the price.

    Language:
    English
    Words:
    639
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    25
    Bookmarks:
    4
    Hits:
    435

  14. 35

    Two Steps To The Left, And a Long Fall by

    Fandom: Bendy and the Ink Machine, Undertale (Video Game)

    28 May 2024

    Summary

    My slightly alternate universes, but only those directly related to the Underground. Mostly bitter ones.

    Words:
    106,948
    Works:
    54
    Bookmarks:
    35

  15. 3

    crossover works by

    Fandom: Assassination Classroom, Code Geass, Dangan Ronpa - All Media Types, Dangan Ronpa 3: The End of 希望ヶ峰学園 | The End of Kibougamine Gakuen | End of Hope's Peak High School, Dangan Ronpa Another Episode: Ultra Despair Girls, Dangan Ronpa Series, Dangan Ronpa Zero, Dangan Ronpa: Trigger Happy Havoc, Danny Phantom, DCU, DCU (Comics), Deltarune (Video Game), Fruits Basket, Gravity Falls, Hunger Games Trilogy - Suzanne Collins, Kagerou Project, Knives Out (Movies), Mahou Shoujo Madoka Magika | Puella Magi Madoka Magica, Mekakucity Actors, MILGRAM (Music Videos), Miraculous Ladybug, My Little Pony Generation 4: Friendship Is Magic (Cartoon 2010), Mystic Messenger (Video Game), New Dangan Ronpa V3: Everyone's New Semester of Killing, Ouran High School Host Club - All Media Types, Over the Garden Wall (Cartoon & Comics), Parties are For Losers - Ferry (Songs), Persona 5, Persona Series, Puss in Boots (DreamWorks Movies), Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime), Steven Universe (Cartoon), Super Dangan Ronpa 2, Super Dangan Ronpa 2.5, Tangled (2010), The Owl House (Cartoon), Undertale (Video Game), 乙女ゲームの破滅フラグしかない悪役令嬢に転生してしまった… - 山口悟 | My Next Life as a Villainess - Yamaguchi Satoru (Light Novels), 乙女ゲームの破滅フラグしかない悪役令嬢に転生してしまった… | My Next Life as a Villainess (Anime), 乙女ゲームの破滅フラグしかない悪役令嬢に転生してしまった… | My Next Life as a Villainess (Manga), 乙女ゲームの破滅フラグしかない悪役令嬢に転生してしまった… | My Next Life as a Villainess (Visual Novel), 人渣反派自救系统 - 墨香铜臭 | The Scum Villain's Self-Saving System - Mòxiāng Tóngxiù, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 天官赐福 - 墨香铜臭 | Tiān Guān Cì Fú - Mòxiāng Tóngxiù, 天官赐福 | Heaven Official's Blessing (Cartoon), 推しの子 | Oshi no Ko (Anime), 推しの子 | Oshi no Ko (Manga), 文豪ストレイドッグス | Bungou Stray Dogs, 琴浦さん | Kotoura-san, 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Anime), 魔入りました! 入間くん | Mairimashita! Iruma-kun | Welcome to Demon School! Iruma-kun (Manga), 魔道祖师 - 墨香铜臭 | Módào Zǔshī - Mòxiāng Tóngxiù

    07 Nov 2025

    Words:
    346,299
    Works:
    141
    Bookmarks:
    3

  16. 3

    Clovers and Feathers by

    Fandoms: Undertale Yellow (Master Sword Video Game)  

    11 Dec 2025

    Tags
    Summary

    It's been a week since Clover chose to live with Martlet after the grand confrontation against the 'Roba. Hijinks occur.

    or: i make bird-human fluff bc i need more

    edit: oh god it's a full story now

    Language:
    English
    Words:
    36,984
    Chapters:
    24/?
    Comments:
    23
    Kudos:
    72
    Bookmarks:
    3
    Hits:
    3,544

  17. 21

    Distant Souls by

    Fandoms: Undertale Yellow, Undertale (Video Game), Deltarune (Video Game), OneShot (Video Game), Heartbound (Video Game), Ib (Video Game)  

    11 Oct 2025

    Tags
    Summary

    The soul is an important part of a persons identity, the accumulation of a person's being. But different worlds play by different rules, so when a force trapped between worlds starts tampering with those worlds, things start to come apart. It'll take the help of a Fun Gang, a Savior, a young girl, a boy looking for his dog, a small cowboy seeking justice, and an incredibly determined human to save all their worlds from the ever looming darkness.

    Language:
    English
    Words:
    30,321
    Chapters:
    9/?
    Comments:
    45
    Kudos:
    90
    Bookmarks:
    21
    Hits:
    3,821

  18. 5

    but you're a monster (and i'm your only friend) by for PatriotsPeak

    Fandoms: Undertale Yellow (Master Sword Video Game)  

    29 Jan 2025

    Tags
    Summary

    You wake up. We're not alone.

    Language:
    English
    Words:
    5,002
    Chapters:
    2/2
    Collections:
    1
    Comments:
    13
    Kudos:
    45
    Bookmarks:
    5
    Hits:
    500

  19. 4

    The Last Amalgamate (The Peacock AU edition) by

    Fandoms: Undertale (Video Game), Undertale Yellow (Video Game), Kung Fu Panda (Movies)  

    01 Nov 2025

    Tags
    Summary

    After millennia, the barrier keeping the monsters Underground has finally broken. The entirety of the Underground does not remember what happened. All that is known is that a living human child was involved.

    Before starting a new life on the surface, Frisk joins Alphys in sending the final amalgamate back home to her family, making new friends along the way and giving them their much-needed happy ending.

    (Based off "The Last Amalgamate" by VyletBunni and the DeltaTraveler team. Credit goes to them for the animation series.)

    Series
    Language:
    English
    Words:
    33,000
    Chapters:
    8/8
    Comments:
    3
    Kudos:
    13
    Bookmarks:
    4
    Hits:
    869

  20. 74

    You're taking my love if you like it or not by ,

    Fandoms: Undertale (Video Game), Underfell - Fandom  

    23 Jun 2019

    Tags
    Summary

    Being one of the three bosses of a top mob organization is tough work, but when Red sets his eyelights on a cute little butt of a café worker, he decides he should take what's his. Even if Sans isn't making it easy for him to take it.

    And even after he already takes it...

    Series
    Language:
    English
    Words:
    186,110
    Chapters:
    54/?
    Comments:
    739
    Kudos:
    744
    Bookmarks:
    74
    Hits:
    20,244

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