inSANSity - MagesticalRose - Wattpad

Story cover for inSANSity by MagesticalRose

inSANSity

Reads 46,973
Votes 1,827
Parts 24
Time 37m

Reads 46,973
Votes 1,827
Parts 24
Time 37m

Mature

alphys asgore depression fanfic fanfiction flowey frisk insanity mettaton papyrus sans snowdin suicidal suicide tori toriel underground undertale undyne

Warning: Contains dark and sensitive topics such as: Suicide, insanity, mental illness, death, and so on. Also may have a bit of gore, so don't read if you have a weak stomach.

~~~

The timelines constantly changing, resetting, and ending is starting to get to sans. He begins to lose his grip on reality and pushes his loved ones away to protect his peace of mind when the human arrives. What will this timeline be, death or freedom?All Rights Reserved

alphys asgore depression fanfic fanfiction flowey frisk insanity mettaton papyrus sans snowdin suicidal suicide tori toriel underground undertale undyne

24 parts

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Broken Souls by James_Bond_Pig

Bringing people back into existence doesn't generally have negative repercussions. Not for an entire world at least. So why don't we use the same idea for an all powerful entity and see what happens? Unfortunately, this world might not be up to the challenge. ---- What's this? An Undertale fanfiction? Yes, that's exactly what it is. This takes place after a True Pacifist route so spoilers if you haven't played it (which you totally should, go play now!) Currently being edited...

Sacrifices (Undertale FanFic) [COMPLETED] by Brynwyth

Frisk has freed the monsters of the Underground. Finally, monster kind is allowed to return to the surface. It's been 3 years since then. Yet the monsters still struggle to find their place within the world. Most accept the monsters, but there are those who wish nothing more than the complete annihilation of monster kind. Merely sealing them away is not enough. As ambassador for the monsters, it is Frisk's responsibility to fight for everyone's right to live on the surface. But at the same time, an internal battle rages on within her. Not only that, her relationship with Sans is strained. Trust is not so easily regained after the slaughter of one's beloved, despite it all being erased. Or was it really? The memories are still there. *I have lost interest to complete pre story and post story parts. Please enjoy the main story and the extra tidbits.* Chinese Version: http://fav.me/db7h2kg DISCLAIMER: I do not own Undertale. TobyFox is the creator and owner. Cover art does not belong to me. I only edited it. Photo was found off Pinterest. If anyone knows the original artist, please let me know! I'd like to give them credit.

Before the Storm ( Sans x Reader ) by morrow-

There's something wrong with the timeline. You've lived in an underground crypt with cracked green walls for as long as you can remember. And that's entirely the problem, you can only remember so much. Even as tortures and experiments continue without end, you're plagued with nightmares and glimpses into a different life, a life outside the green walls that you've been trapped inside for your entire life. There's a demon in the lab. Somewhere, you're sure of it, the scientist whom you have learned to hate is keeping a secret, another human besides yourself locked away. You don't know why or how they're connected to you, only that their name is Kris and they might be the answer to everything. There's something wrong with the timeline. And the whole universe might be thrown into chaos and bloodshed before you can fix it.

Runaway by DevinGaming321

Finally. They made it to the surface. But after an attack on the monster king, Undyne reveals a hidden secret that destroys the group. Can they bring themselves back together, or will their friendship break even more. (I suck at writing descriptions [~_~] )

Plumetale-Broken Wings by Livathane

Part 2 to Plumetale. Or should I say. Another run. Due to Frisk being Soul Poisoned. A purified Chara resets the world to avoid Frisks permanent death. Unfortunately, the only ones who know about the reset are Sans, The River Person and The Man Who Speaks With Hands. Frisk can't remember much from their previous pacifist run except for the love of her friends. Will they be able to save them? (Still a placeholder cover, lmao)

To SAVE a Demon by jhbloodstorm

Frisk has gone through the Underground countless times. Each time trying to figure out a way to SAVE the one that started everything. But this time it will be different, there is only one thing that hasn't been tried until now. (Disclaimer: I have never written a fanfic before, so don't expect a masterpiece) (Disclaimer 2.0: This will have MAJOR spoilers from the game (obviously) so I highly recommend you play the game first)

Timelines (A Doctor Who/Undertale crossover) by introverted-actress

What happens when a human gets tired of resets? When the thrill of a genocide route becomes boring and mundane? This is exactly what happens to Frisk. They spent so much time going through reset after reset that now they are growing tired of it. However, little do they know that their next timeline will be one of the most interesting they've ever had. When Frisk resets after an incomplete genocide, it captures the attention of a certain alien Timelord called The Doctor. He has to travel between dimensions to investigate this strange anomaly, but ends up with an adventure much more strange than he had initially anticipated. This timeline is breaking. The entire reality is being torn apart and it's up to Frisk, Sans, and The Doctor to stop it. (Disclaimer: I do not own Doctor Who or Undertale. The only thing I own is the plot line and the writing.) Cover art by @GodOfChaos3900

Undertale X Reader [In Remake] by Cat_Maipie

Let's get to the point shall we? So let's look at the list here... You're a... no information? Hm, interesting i guess, I'll have to base it off my observation. Whatever, you're a human, well kind of. You're a human and a monster at the same time, more like in between. Let's say... player? Better than nothing i guess. You're your own person. Sometimes you control frisk, sometimes you don't. You can also move through timelines, and also universes but that may be too risky huh? You'll find more about it soon... THIS CONTAINS VIOLENCE PLEASE BE WARNED! Lemons? Maybe. - #57 in sans 12/14/25 - #1 in floweyxreader 01/10/25 *** COVER : Credits to the person who made it GAME : Toby Fox

Undertale:Secrets by ItIsComic

Remaster on my page - check it out! Sans has had an interesting past. A past that even his beloved brother barely even knows of. A past that he wishes could remain a secret. But when the questions start being asked, what does he do? These questions seem so little, yet they cause so much to happen. One little question. "Who is ??????" can change so much. A chain reaction from a single sentence can cause an entire world to crumble. Or maybe two. This is my first book so dont expect anything great. Inspirations: The "Better Times" trilogy by: @ANinnyMouse42 "Royal Blue" by: @dealialestine Started: 24th May 2021 Finished: 29th December 2021 A full 7 months of great fun with this book! Cover art by someone? I couldn't find the original owner :( Undertale by Toby Fox

Just give up, I did (Sans x deppresed!reader) by Melody_K_Hart

One day you just need to escape from harsh reality, maybe the stories of Mt. Ebbot are true? *Trigger warning, this book does get dark*

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Broken Souls

Bringing people back into existence doesn't generally have negative repercussions. Not for an entire world at least. So why don't we use the same idea for an all powerful entity and see what happens? Unfortunately, this world might not be up to the challenge. ---- What's this? An Undertale fanfiction? Yes, that's exactly what it is. This takes place after a True Pacifist route so spoilers if you haven't played it (which you totally should, go play now!) Currently being edited...