Undertale: What If...? - MattPad2099 - Wattpad

Undertale: What If...?

Reads 20,222
Votes 665
Parts 4
Time 1h 35m

Reads 20,222
Votes 665
Parts 4
Time 1h 35m

alphys asgore asriel chara determination endings frisk magic mettaton monsters muffet napstablook papyrus sans soul toriel undertale undyne whatif

Undertale is a game with multiple endings, everything that you do redefines the whole world around you. But... What If...?

What if Sans found you first before Toriel?
What if Flowey was possessed by someone else?
What if Papyrus was evil?
What if Undyne never met Alphys?
What if Asgore had died before the events of the game?

What if... I was to tell you what would happen if those events had occurred?

WARNING: MASSIVE SPOILERS
I do not own anything related to Undertale.All Rights Reserved

alphys asgore asriel chara determination endings frisk magic mettaton monsters muffet napstablook papyrus sans soul toriel undertale undyne whatif

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Colors | Chara x Papyrus by NoellaBerry

~~~ [COMPLETE] After being set free from Frisk, Chara finds herself shoved into a new life that she didn't ask for. She's cold and distant for days, void of a SOUL and seemingly proper emotions. However, there's a certain somebone who refuses to tolerate it anymore. Unlike her, he's kind and unfortunately, always around. When Chara finds herself dealing with unrecognizable feelings, he knows just how to help her. ~~~

Undertale X Reader by Frei_111

You woke up on bed of golden flowers without having anything to remember. Going to an adventure where you met with many monsters to go home. Easy, right? Not really, actually but anyways! - I do not own any characters from undertale -i did this only for fun, don't judge me -this story is abit (alot) angsty so be prepared~ -Chara is evil(sorry i just had to-)

A Different Kind of End - Book One - Reset by Toasty-Writer

Hatred is like an infection, if left to fester it only spreads and becomes worse, until there is little to no hope of return. Frisk had abandoned her life on the surface, she had no expected to survive the fall, even less so make friends with the monsters rumoured to live under the mountain. So what happens when she leaves and is all alone once again... What happens if she listens to the flowers advice..... Book one of A different kind of end. I do not own Undertale, or the characters used, simply the story concept.

The First Human [X Sans] {COMPLETE} by RaeTheStar

Imagine Undertale, but Chara never showed up. Chara wasn't the first human in the Underground. What if a glitch occurred, and you fell down instead? You fell into the Underground, but you cant remember your previous life. Now, you are surrounded by strange monsters, who have also never seen a human before. Will they let you live? [written 2017]

Reset (Sans x Older!Frisk) by error-code-707

There are some things you just can't take back. No matter how many times you reset. After breaking free of Chara's grip, Frisk decides to do one final reset before defeating Sans or proceeding to the throne room. But some memories last longer than others, and broken trust isn't easy to repair. Female, aged-up Frisk. Starts out canon and then diverges. Eventual Sans x Frisk. Undertale was created by Toby Fox. I do not own Undertale, nor any of the characters. Some violent action scenes. Cover art is by amazing artists at http://www.zerochan.net/Undertale,Fanart and http://www.zerochan.net/Chara+(Undertale),Fanart

A Tree, For Us (Sans X Reader) by TheAbandonedQuiche

CONTAINS SPOILERS FROM BOTH PACIFIST AND GENOCIDE RUNS After a horrible situation, I (Y/N) scaped from home to avenge my (sibling). In a failed attempt, I got lost and fell through a hole, in there I found another world... "the underground". I meet many friendly monsters, one, specifically, changed my whole life. Both of us will try to give the monsters the liberty they deserve. And this is how all happened... (Cover made by me :3)

ControlledTale by amilllionnames

(I DON'T OWN UNDERTALE. The only characters I own are Bailey and Creame.) All the monsters live happily in the underground: until one human ruins everything. Bailey Hill is a normal, 11 year old girl- until she trips, and falls into Mt.Ebott. Quick to befriend the monsters, Bailey is instantly loved by everyone. When monsters start mysteriously disappearing, Bailey is on the case. What she doesn't know, though, is that a small team, co-led by Undyne and Sans, are working as secret spies in the background. After hearing about the disappearances, Bailey thinks she can solve the mystery- but when Bailey has a shocking realization, she realizes that she might not be so innocent after all. ------------------------------------------- Changes: IMPORTANT: Frisk and Chara don't and never exist(ed) Monsters don't mind the underground, so Alphys never did the experiments. Still Relevant: Mettaton never left, and Napstablook is constantly being featured on his show The amalgamates don't exist since those monsters never fell down. Napstablook and Shyren are now younger than in-game, Napstablook - 12 and Shyren - 14. More on Napstablook- Since Mettaton never left, Napstablook is just shy. Everyone knows each other Alphys x Undyne- Already a couple Frisk and Chara don't and never exist(ed) ------------------------------------------- A note from Emma- Hi hoomans! I hope you enjoy this AU I came up with! Happy reading! 😊 10/4/2020: There IS a sequel coming soon! :D

Dual Stones - Undertale Fanfiction (COMPLETED) by IcyDuelist

Duska has something most people would call a traumatizing childhood which she only escaped from a few months ago. Now she finds herself beneath the very mountain she was born in with monsters around every corner. She decides to start her life again here, in the house with Papyrus and Sans, but monsters don't live the most ordinary of lives either. Duska's past is catching up with her but the wall of friends in front of her may be hit by the impact first. No pictures, videos or any other media belong to me unless specifically said. Will have some swearing in it. Undertale belongs to Toby Fox. Thank you for creating such a beautiful game! I FINALLY FINISHED IT!!!

The New Life Of Duska Rose: An Undertale Fanfic - (UNCOMPLETED XP) by IcyDuelist

Many years ago there was a war between humans and monsters. Although monsters had inborn magic on their side they were sentenced to live in the Underground, seperated from the surface by a barrier of human souls. The monsters have broken through the barrier and now wish to live among us. Duska watches from her room as a reporter interviews King Asgore on the TV, wondering how life will change for her. Now she lives with two monsters. How much will her life change? Can she reveal her deepest secret to them? Will she find more about herself? Will she fall in love? (Undertale does not belong to me, only Duska does. The songs linked belong to their respectful owners and so does the art. There will be swearing and strong themes. Please enjoy!) (Will upload a new chapter every Australian Tuesday and Thursday.)

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

What Went Wrong? by AngelOfTheDead80

~'Disclaimer: This story has a lot of profanity and covers some very very intense or touchy subjects that may disturb some readers. You have been warned.'~ ((Unedited)) After Chara fell into the Underground, they met Asriel a monster inhabitant of the Underground. Soon after that, Chara joins a new family, but their ambition to keep everyone happy goes a little overboard and Chara is flung into a reality of destruction and hopeless wonder. Then many long years later they meet the beloved Frisk, who fell into the Underground, similar to themselves. Eventually everything Chara thought they knew correctly is turned upside down and they as a person are changed forever. ~'The game Undertale belongs to Toby Fox and some of the dialogue is ripped straight from the game itself, too.'~

Undertale 2: Forgiven by Alex13Creations

Happy endings don't always come easy. Monsters in the Underground know that better than most. Especially when it comes to humans: their history, their fate, and how they Act. But if there's anything that monsters have to learn, it's that the actions of one human do not define the Mercy of another... Takes place after Undertale's in-game Genocide Route

Undertale in Among Us by anonymoussegoose47

What if our favorite Undertale characters were in the world of Among Us? Read along as the imposter, Frisk, tries to sabotage and kill everyone. Each area of the ship represents an area in the underground and nine of our favorite characters (plus added ghosts) will have to finish their tasks and root out any imposters in their midst. Will sans finally stop being a lazybones and finish his tasks? Will Undyne stop the imposter in their tracks? Will Mettaton ever stop accusing monsters that he knows are innocent? Read along to find out!

FALLEN DOWN by Lxzaruss

Formerly known as, "Fallen Down (Undertale x Reader) CURRENTLY UNDER REVISION. Book Start: Wednesday, August 17 10:34 Book Status: Completed. Take note; This is my first complete book. Which means I am still learning.

Undertale: Genocide by CassBunnys

"In this world, its kill or be killed" - Long ago, two races ruled over Earth: HUMANS and MONSTERS. One day, war broke out between the two races. After a long battle, the humans were victorious. They sealed the monsters underground with a magic spell. After the war, the monsters retreated into the deepest part of the Underground, which would be called, "Home." - Note: In chapter one i NICKNAME frisk "Sam" Due to the fact you dont figure out their name until the end of pacifist so i had to put a nickname to make it easier to write and read. Sam is a neutral name so it should be fine. - NOTE: All lines with this symbol " * " is going to be in Wing Ding font in the final release of the book. But for now, it is already deciphered for you! - *So yeah! This is book one of my Undertale Series, which will be 2 books in total. *The book is Fanmade of course, Support the original game by Toby Fox. *Since its Undertale, i have to warn you guys obviously that there will be action and mature things. And book one is Genocide, so... *Follow my Instagram: @Djcasso -

Most Powerful Monster by thundersnake2375

I'm writing a fanfic on the popular game, Undertale. You fell down into the Underground at the age of 11, but little do they know that you had secret powers, at least until you got carried away. None of the pictures or videos belong to me.

Another Tale by Indian024

what if Asgore and Toriel part on good terms after his delcaration of war? what if Flowey did not turn evil by the time Frisk came into the underground ? what if Papyrus was more willing to fight and more able to dodge (..without still knowing what capturing a human would do)? what if Sans still did not find about "the anomoly" due to Flowey's lesser amounts of resets? and more small things a "what if" type of story for all to see

Fallen Under by VenomQuill

Fallen Under is a full-length fan-novel of the game 'Undertale' set in 'Underfell'. This work will not have anything sexually explicit, though there is a (major) gore warning. It is light of heart, but some dark themes including suicide, abuse, and murder are explored. Mt. Ebott is famous for the woods that a child may wander into and never return. In legend, monsters snapped up children from villages, hid in dark corners, and ate the souls of the weak or unprepared. When a young child chooses to flee into the mountain rather than face human capture, they find out that these monsters might not just be characters in old children's stories. Frisk Foster, an eight-year-old child cursed by hereditary blindness, falls into a cavern full of merciless monsters, all of which want nothing more than to steal their soul. Armed with only their sense of justice and kindness, Frisk must travel across the underground to get back home. Yet when faced with the terrible truth of the consequence of their escape, can they truly find the will to complete their mission? Originally posted: Deviant Art (http://fav.me/daq2e06) Original Ending: Archive of Our Own (http://archiveofourown.org/series/615394) Alternate Ending: Fanfiction.net (https://www.fanfiction.net/s/12637068/1/Fallen-Under)

Tyrant Tale (Asriel x Frisk//Undertale AU) by neo-chann

-What if Asriel never died when he went up to the surface?- "Seven of the mighty traits, Freedom just at grasp, Our hearts as one with our faith, Forever the strong, for eternity will last, But as the seventh child arrives, Time will travel and turn to dust, A turning terror to gain control, All hope destroyed forever lost. The Risen Angel will come once more. The Risen Angel will save us all." Previously titled: Worthy (Asriel x Frisk) *COMPLETED* UNDERGOING HEAVY EDITING. (This is an Undertale Alternate Universe. It is a FRISK X ASRIEL STORY. If you don't like it, please leave. Thank you.)

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.

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Slide 1 of 20

Colors | Chara x Papyrus cover

Undertale X Reader cover

A Different Kind of End - Book One - Reset cover

The First Human [X Sans] {COMPLETE} cover

Reset (Sans x Older!Frisk) cover

A Tree, For Us (Sans X Reader) cover

ControlledTale cover

Dual Stones - Undertale Fanfiction (COMPLETED) cover

The New Life Of Duska Rose: An Undertale Fanfic - (UNCOMPLETED XP) cover

Undertale:Secrets cover

What Went Wrong? cover

Undertale 2: Forgiven cover

Undertale in Among Us cover

FALLEN DOWN cover

Undertale: Genocide cover

Most Powerful Monster cover

Another Tale cover

Fallen Under cover

Tyrant Tale (Asriel x Frisk//Undertale AU) cover

Sacrifices (Undertale FanFic) [COMPLETED] cover

Colors | Chara x Papyrus

~ [COMPLETE] After being set free from Frisk, Chara finds herself shoved into a new life that she didn't ask for. She's cold and distant for days, void of a SOUL and seemingly proper emotions. However, there's a certain somebone who refuses to tolerate it anymore. Unlike her, he's kind and unfortunately, always around. When Chara finds herself dealing with unrecognizable feelings, he knows just how to help her. ~