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Story cover for Into The Game >> (Sans X Reader) Undertale FanFiction by Melody4164

Into The Game >> (Sans X Reader) Undertale FanFiction

Reads 232,148
Votes 9,125
Parts 23
Time 2h 1m

Reads 232,148
Votes 9,125
Parts 23
Time 2h 1m

Mature

chara determination fanfiction flowey frisk game genocide intothegame mercy nightmares pacifist papyrus reset sans sansxreader soul texttospeech timeline toriel undertale xreader

It was just a normal Saturday. (Y/N) was playing Undertale for the millionth time. She was obsessed. (Y/N) had played all of the routes. True Pacifist, No Mercy/Genocide, Neutral. She experimented with killing certain characters doing different things. 

Then, as (Y/N) started a new game, she felt a falling sensation, as if she just fell out of her chair. She blacked out soon after. When she woke up, she was lying on a bed of golden flowers. 

She knew this place. (Y/N) was in the game. She had taken the place of Frisk and was in the Underground. 



•Disclaimer I do not own Undertale. It belongs to Toby Fox. I do not own you. You own yourself. I do not own the cover or any of the pictures that will show up in this book•

*If you're reading this as a guy please just change the pronouns to he/him/his. I find if a lot easier to just put female pronouns. Thanks! :3 *All Rights Reserved

chara determination fanfiction flowey frisk game genocide intothegame mercy nightmares pacifist papyrus reset sans sansxreader soul texttospeech timeline toriel undertale xreader

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Cursed (Female!Chara x Male!Reader) by Incurvat

[THIS IS THE DEFINITIVE AND IMPROVED VERSION. THE OTHER 'CURSED.' IS DROPPED. I HIGHLY SUGGEST READING THIS AND NOT THE OTHER ONE.] 7 years ago, monsterkind was freed by two heroines. Following their freedom, magic became common for humans. Y/N, a young man who's magic is mighty special, hates it for special reasons. But a certain someone might change his views. Story started on 11/07/2024. Story finished on 23/03/2025. Cover by Nick Nitro. (Yes, Storyshift Chara. But damn, can you blame me ?) Lastly, inspired by Red Eyes from CouldYouJust.

FurtherDown by THEANIMATEDFOX4

Was this truly the last RESET? Sans wondered. But he knew only Frisk would tell, only this young girl would decide his future. He hated the thought of it at first, but hatred began to grow numb after he figured out he had no say in his own future. He had to admit though, Frisk was pretty reasonable, it was Chara who was the maniac. But she was gone now, so what was the anticipating, eerie, feeling that he had in his bones? The feeling that something wasn't right, of course, this timeline was already incredibly strange. The feeling sat in his in the pit of his stomach, tying itself into knots, until that fateful rainy day when all of his questions would be answered. So basically, this is a fanfiction of a fancomic of the game Undertale. Look, I'm gonna admit, I'm little stuck in the Undertale fandom, so this is my of slowly crawling out of it. Anywho, I strongly suggest you read the fancomic which this fanfiction is based off of, DeeperDown, before reading my story. Here, I'll give you a link. http://gettingdeeperdownwithundertale.blogspot.com/ Anyway, enjoy the story, it took me about 11 months to write, so please consider enjoying it, seriously. - Ya Boi, Fox

Undertale x Male reader - Overprotective by kinder1000

Y/N L/N, lost after the disappearance of his sister and the death of his father. This pain caused Y/N to be quite the uncaring individual... not helped by his past mistakes. However, one day... he sees his... sister? As ambassador for monster kind? (Kitten x male reader)

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 -

Dusty Love (Fem Chara X Reader) by BlueFlare99

(Y/N) is a young boy who went into the underground to try & help his friend Frisk. When he gets down there him & Frisk start to explore like usual, but after a little bit of decision making Chara decides that (Y/N) is a better candidate to help her out. (Y/N) soon starts to travel the underground along with Chara making many new friends... or is he? I do not own Undertale or any of the pictures/videos used. All rights go to there respected creators.

Undertale Determination by StorageLibrary

Casted out by their village and fallen into the depths of the Underground, Frisk has to get quickly used to the fact that they not only have to survive against monsters, but also have to figure out who that Ghost Chara is, that helps them through the darkness of the unfamiliar world... WARNING: PUNS AND JOKES AHEAD!! AND SOME VIOLENCE, cause this is Undertale! If you hated Sans puns, you will hate this story even more. And yes dear readers, your soul will be in shambles. GET IT?? Cause with determination it splits apart! Haha...hah...

Write A Note (Sans x Female!Reader) by OreoDaSkeleton

It's only been a few years since monsters have been released from their underground prison. In some towns, monsters are welcomed with open arms. Others? Not so much. Y/N is a 22 year old girl that lives a pretty simple life. Sleep, eat, work, relax at her daily cafe, go home, sleep. Then the routine starts again. However, her routine is thrown off when she keeps running into a skeleton, supposedly named Sans. She would like to get to know him more herself, but there's one problem.. He doesn't talk. Of course, Undertale belongs to Toby Fox, not me lol

Fused by DinoDotsCreations

*DISCLAIMER* I DO NOT OWN ANY IF THE THINGS I WRITE ABOUT - NOR THE ART This fan fictions takes place after what's called a Genocide Run in a game called Undertale. "Do you think that even the worst of people can change? That even after what they do, anyone can be a good person?" Frisk thinks this is true, but not for her. After resetting after killing every monster in the underground by being taken over by Chara, she fears to get close to her once friends. After Chara threatens Frisk if she didn't kill one of her favorite monsters, Sans the Skeleton, she begins to distance herself from everyone; including herself. Will Frisk figure out how to defeat Chara and have a happy ending once again, or will she succumb to the pressure and begin the slay every monster- just like before? Edit: I own Fuse, but none of the other characters. Original Sans the Skeleton is owned by Toby Fox and any variation other than Fuse is not owned by me. None of the pictures are mine and I found most of them on Google so I don't know who they rightfully belong to. Another edit: I changed the name to Fused

Judgement Hall • ~• Sans x Reader by WildAnimal999

#40- TobyFox 12-8-18 #1 JudgementHall 3-21-19 Discontinued. I stood before Sans, he'd fallen asleep. Tears were dripping down my face as I held the knife high above my head.My hand was shaking, I didn't want to kill him, I never wanted to kill anyone, but Chara, that brat, she'd killed everyone, not me. And just before Sans fell asleep, she left my body and I was sucked in. She wanted ME to KILL SANS. At this point, my whole body was shaking. I could hear Chara saying, "Come on, Y.N, kill that smiley ol' trash bag. He's nothing compared to US. NOBODY CAN STOP US NOW!!!! LETS END THIS, HERE AND-""NO!!!!!" I screamed in rage. Sans still didnt wake up. This starts off as a genocide run but then blossoms into so much more. I dont own the cover or any of the Undertale characters, thoose belong to Toby Fox, the creator of Undertale.

Red Eyes [Chara X Reader] by CouldYouJust

This story is inspired by many other works and may bear some resemblance in certain places. However, I will endeavor to make this story it's own. 2 years ago monsters were released from the underground, ending their centuries-long imprisonment at the hands of ancient humans. Not a soul remains in the underground. But that doesn't mean no one's there. Be it chance or fate, The First Fallen will soon meet an all too curious human as he ventures into the deep beneath. The Reader or [Y/n] is male and Chara is female. I apologize if this bothers you it's just how I've always seen the character. Disclaimer: I don't own these Chara-cters nor do I own Undertale. This is just for fun. This story's rating is [M] for explicit language, violence, suggestive or sexual themes, and fantasy/fictional violence. My lovely reader @NightTheDemon1 told me that the artist of the cover is a Twitter user known as @A___IRAA. Thank you!

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Slide 1 of 10

Cursed (Female!Chara x Male!Reader) cover

FurtherDown cover

Undertale x Male reader - Overprotective cover

Undertale: Genocide cover

Dusty Love (Fem Chara X Reader) cover

Undertale Determination cover

Write A Note (Sans x Female!Reader) cover

Judgement Hall • ~• Sans x Reader cover

Red Eyes [Chara X Reader] cover

Cursed (Female!Chara x Male!Reader)

[THIS IS THE DEFINITIVE AND IMPROVED VERSION. THE OTHER 'CURSED.' IS DROPPED. I HIGHLY SUGGEST READING THIS AND NOT THE OTHER ONE.] 7 years ago, monsterkind was freed by two heroines. Following their freedom, magic became common for humans. Y/N, a young man who's magic is mighty special, hates it for special reasons. But a certain someone might change his views. Story started on 11/07/2024. Story finished on 23/03/2025. Cover by Nick Nitro. (Yes, Storyshift Chara. But damn, can you blame me ?) Lastly, inspired by Red Eyes from CouldYouJust.