21 - 40 of 243 Works in Determination (Undertale)
Navigation
Listing Works
-
Tags
Summary
Since he was first placed onto that small TV stand in a brand new home, he has seen everything.
He had watched two young parents come home with a baby in their arms a year after moving in. He had seen as they did it a second time a few years later.
He has witnessed every milestone. He goes from playing romcoms and horror movies to preschool cartoons and educational shows. He watches as two families gather around his soft glow to enjoy his programming. He feels their love, and with his semi-consciousness he feels it too.
Then, slowly, people stop coming by. Two parents quickly fall out of love and arguments are held every night. Two kids, siblings, are the only ones left who find comfort in his screen.
Tenna would do anything for them. And when things start to fall apart, he is determined to be better.
OR,
What happens when a simple CRT feels the power of DETERMINATION.
-
Crash out tale (a joke au) by im4gi_nati0n_fact0ry, Ufpapyruscafe, Wimidicus
Fandoms: Undertale (Video Game)
24 Jun 2025
Tags
Summary
What if someone turned out to have more determination then frisk?
Frisk, after killing again, and again, lost determination, losing resets. Sans took advantage of that and killed frisk, but frisk managed to reset before dying, but then...why did 2 need humans fall down?
Series
- Part 1 of Every universe there's us
-
Tags
Summary
kris can't seem to open that fountain.
-
FOXCOM II: The Temmie Blaster by gestaltopinions
Fandoms: Undertale (Video Game), Deltarune (Video Game), Brandish: The Dark Revenant (Video Game), Brandish 2: The Planet Buster, イース | Ys
16 Jun 2025
Tags
Summary
Almost two months after escaping the Monster Kingdom, Varik Toraernos is apprehended by the kingdom of Bundevia, and his weapon, the Temmie Blaster, a blade capable of killing gods, is taken from him. Thrown in prison, Varik's next steps are clear: find a way to escape, reclaim the grand weapon, and put an end to whatever the evil King Badorrer plans to do with it. But this foreign land is filled with danger, deception, and some of the cruelest people the human race has ever produced; it will be no easy task.
Surrounded by old enemies as his only allies, what awaits the wandering swordsman at the end of this journey? And what is to be the fate of both Bundevia and the monsters he's left behind?
Series
- Part 2 of FOXCOM
-
How Do You Kill a Time Traveler by ZJFoster (toxicnuts69)
Fandoms: Undertale (Video Game)
15 Jun 2025
Tags
Summary
let me describe to you a hypothetical situation. you are a time traveler. you work in the business of space and time and whatever distortion that may be caused by any such anomaly. timelines jumping left and right and the space-time continuum would be bursting at the seams if this loop wasn’t trapped in its own bubble, making your job of discerning who being positioned where in time in space irrelevant and admittedly— a lot easier. your job is to do whatever it takes and whatever you can to shut this down, even at the risk of your own life. you just wish he wasn’t here with you. even though he needed to be. couldn’t he have taken the day off? you can’t help but wonder how many times you’ve stepped out that door.
-
Tags
Summary
She’d stared at the yellow petals in her palm. Buttercups. Harmless-looking. Beautiful. Poisonous. She chewed slowly. Her hands didn’t tremble. Her heart pounded. Asriel had begged her not to. She’d smiled through the pain. “I’m not afraid,” she had told him. But she was. She was terrified. Still, she whispered: “Somebody had to do it.”
***
Day Ten: June of Doom- Chara recounts her death with Frisk
Series
- Part 10 of June Of Doom 2025
- Language:
- English
- Words:
- 532
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 87
-
Tags
Summary
His other hand activated the recorder. The red light blinked to life, casting faint illumination on the darkened lab. Everything around him was a monument to forgotten science: faded monitors, humming generators, glyph-covered machinery that hummed in a language only he still understood. He leaned in, eyes glowing dimly behind his cracked skull. “You’re not going to like this,” he said, not without sympathy. “But then, progress rarely asks for permission.”
***
Day nine: June of Doom- Gaster experiments on a human child.
Series
- Part 9 of June Of Doom 2025
- Language:
- English
- Words:
- 335
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 77
-
Tags
Summary
The world choked on war, but for Chara, Kager’s attack was the true devastation. Raiden, her love, didn't just die; his Lumina—his very essence, memories, him—was shattered. Gone. In that void, something cold and sharp awakened within Chara.
Determination. For her, it's not hope; it's power. A RESET. Her one chance to fix this goddamn mess, even if it means tearing reality apart. Love is the raw, constant ache. But HATE, a dark, intoxicating power she's now embracing, will be the edge of her knife. Kager will pay. Raiden will be made whole.
This path is blood and betrayal. She’ll navigate a world of deceit, facing enemies in guises she should trust—even a twisted version of her own damn face from a timeline drowned in LV. Expect gritty magic, brutal fights where survival is the only rule, and the unsettling feeling that any memory could be a breaking point. Or forge her into something worse.
This is Chara's war. Her burden. Her one fractured hope.
-
The Purple Door by GoldenWindRequiem
Fandoms: Undertale (Video Game), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
31 May 2025
Tags
Summary
Mineta Minoru dies.
Someone watches.
A Purple Door creaks open.
(If you like this, please come heckle at me on Discord:
https://discord.gg/C3uQDZVTKf )
-
Tags
Summary
After defeating Asriel in battle for what felt like the thousandth time, something new finally happens. Instead of disappearing, a new magic consumes the human souls and gives them life once again. With the barrier broken, they'll be able to go home and get their own happy endings, right? Unfortunately their families were disturbed by the way they came back to life, and because of the time gaps some felt too old to be parents again.
So where do they go? With the monsters that killed them, to "make amends."
Series
- Part 2 of Surface Souls AU
-
Tags
Summary
There's been an epidemic of monsters suddenly falling unconscious, never to wake up. It's been labeled as falling down and the patients the fallen. As the Royal Scientist, Alphys has been put in charge of fixing things. But what is she supposed to do when her girlfriend's mom is among the fallen? Or when she makes things so much worse? How can she face Undyne or tell her what she's done? How will she fix this?
Might be a little out of character because I haven't played true pacifist in a while and I'm at the Sans fight so I don't want to reset to start true pacifist
-
Tags
Summary
Alphys has finally been set free of Chara by Frisk. The guilt gets to her. Undyne comforts her.
Series
- Part 5 of Wheel Prompt Fill
- Part 7 of Sans AU Ships (Includes Rarepairs!)
- Language:
- English
- Words:
- 480
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 41
-
Tags
Summary
After the fall of the Barrier, life on the surface has begun to settle—but not all wounds heal with freedom. Frisk and the monsters navigate the quiet rhythms of a new world while remnants of the Underground’s past ripple beneath their feet. Between sleepless nights and strange seismic readings, old instincts stir, and a journey begins—one that may unearth more than just stone.
-
Detached Or Indomitable Souls? by Appah_V2
Fandoms: Undertale (Video Game), Class of '09 (Visual Novel), RWBY
21 May 2025
Tags
Summary
Frisk only wanted to play. Get away from an orphanage and go exploring. Ignoring the tape, fences and multiple signs saying to not get too close to the mountain. She did not care, she was having way to much fun. Away from annoying people who called her weird for never talking. So as she played, she didn't pay attention to poorly a covered hole, and barely registered what was happening when she stepped on it. She fell.
Nicole only remembered taking one last xanax before she got on the chair. The feeling of calm it gave her made the next action she took come a lot easier. Fuck the world and all that, she'd be seeing her dad soon. Rope got tense, chair on the ground, note on table. Everything was as she planned for those last moments and after that? She fell.
Ruby just wanted to get some last minute training before Beacon. Kill monsters, celebrate with some cookies, all the works. Then she took one weird step in one of the many snowy glades that filled Patch's large forest. She felt herself trip, expecting to either catch herself before she finally made a fool of herself or just let the snow consume her. Well, something did happen. She fell.
And they kept falling.
-
FOXCOM I : Unlock the Underground by gestaltopinions
Fandoms: Undertale (Video Game), Deltarune (Video Game), Brandish: The Dark Revenant (Video Game), イース | Ys, Earthbound: Halloween Hack
17 May 2025
Tags
Summary
A bounty hunter and a sorceress plummet into a forgotten kingdom on the other side of the world. In a land full of wistful and hopeless souls, only one way leads to freedom, on the other side of a prophecy centuries in the making. As humans and monsters intermingle for the first time in generations, the fates of both races fall into the hands of one human man, and the path he will carve to the surface.
Is it kill or be killed, or can this one adventure be more positive than what he's endured before?
Series
- Part 1 of FOXCOM
- Language:
- English
- Words:
- 116,292
- Chapters:
- 11/11
- Hits:
- 147
-
Tags
Summary
You wake up, and you don't know where you are.
You don't know who you are, or why you're here.
You don't know these people.
And you most certainly don't know who he is.
. . .
There is one thing you do remember, though.
And only one thought is clear in your mind:
Above all else,
you need to find your sister.
*
older/beginning chapters in process of being revised and/or rewritten!! i'll be doing at least the first one, but not too much will change! (at least not the important stuff, i'll just be reworking things to make more sense and to my liking now that i've had 4 years to be familiar with this story jhghjdsgdhsjdsfhj!!!) please bear with me as it might seem like a jumbled mess until then lmbo
Series
- Part 37 of Never Forget
- Part 1 of and i will meet you there
-
Determination by MayBeADragon12
Fandoms: Undertale (Video Game), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), Deltarune (Video Game)
05 May 2025
Tags
Summary
Chara doesn’t know how exactly her reincarnation brought her to the past in Japan, but the image of an empty Underground keeps the goal of protecting her new family at the front of her memory.
Especially when the night is treacherous with man-eating Oni.
.
(kny!various x f!Chara Dreemurr)
.“Where are the knives?”
“Stay determined.”
-
You are wracked with a perverted sentimentality. by Anonymous
Fandoms: Undertale (Video Game)
19 Apr 2025
Tags
Summary
Aka my take on Chara during the genocide run based off my interpretation of their chara-cter (haha) with canon hints and the narrachara theory!!
Also Chara literally says the title in canon if you commit genocide twice in a row
Series
- Part 1 of Aw shit my UT phase is back
- Part 1 of Dreemurr Family Centric!!
-
Tags
Summary
Seven human mages to create the barrier. Seven human and one monster SOULs to shatter it.
But who said the humans had to be dead?
Follow the tale of King Asgore as he dares to take a merciful, risker route to SAVE the monsters of the Underground...and all they who may fall here.
Welcome
.
.
.
UNDERTAKER- Language:
- English
- Words:
- 580
- Chapters:
- 1/1
- Kudos:
- 8
- Hits:
- 144
-
Tags
Summary
The child awakes underground to traverse the world of monsters and find a pathway out as they learn more of the residents and a way to maybe save more then just their self. But as they do, another friend appears to aide them, as an ancient corruption revives along with the child to reclaim their vengeance. How will the child and their friend deal with such a demon... or demons...?
Enjoy a twist on the tale.
Series
- Part 1 of Origins (Undertale)