Undertalegenocide Stories

24 Stories

Saved From The Genocide (Sans X Reader) by Void_Chicken
#1
Saved From The Genocide (Sans X Re...by CC
This timeline's Frisk has been doing the genocide run, with Chara by their side. It's time for Sans to cast judgement apon their murderous soul. Right before Chara's fin...
You're Safe Now [UNDERTALE] by PoopyButthole69aaa
#2
You're Safe Now [UNDERTALE]by Jareas
Mistake. That's what Frisk's parents always said they were at least. They ran away and fell into MT Ebbot. They hunted down monsters and killed all of them to let off al...
Undertale: Death From Above by VY-RiSS
#3
Undertale: Death From Aboveby VYRiSS
Is this how our story will end? As the Fallen child descends, why did they decide to kill us all? Why are they embracing evils call? We cannot fly, here in the undergrou...
Completed
Undertale - Regretted Reset by puka_chan
#4
Undertale - Regretted Resetby Puka
An involuntary Genocide Run haunts Frisk even way after completing a new True Pacifist Route. Sans listens to their story. Will their friendship remain the same afterwar...
Undertale Genocide- The evacuation by x_Rublestories_x
#5
Undertale Genocide- The evacuationby x_Rublestories_x
"Even if it wasn't clear, Alphys could see that the human were hiding a smile. That damn smirk. She wanted to destroy it" WARNING! UNDERTALE GENOCIDE SPOILERS...
Genocide (an Undertale Fan Fiction) by TheUltimateSinner
#6
Genocide (an Undertale Fan Fiction)by SoulStalker
Frisk wants to look for chara will she be able to find her?
Papyrus by katwritesbs
#7
Papyrusby kat
A random poem like fic that I wrote to try out a stye of writing lol This took place during a genocide run and after Frisk/Chara killed Papyrus :'> !TW! Strong langua...
Disassemble by donateyourbones
#8
Disassembleby what
When you have all the parts to something, it can be properly assembled together in the correct way and function properly. This is common knowledge. So, now, what happens...
The judgement hall [Undertale spoilers] by Boommasterstories
#9
The judgement hall [Undertale spoi...by Roxy Talks
This story is about the acclaimed infamous genocide run of the game called undertale!
UNDERSTABILITY -genocide run- by gabrielburrito
#11
UNDERSTABILITY -genocide run-by gabrielburrito
The choice of pacifism, neutrality or genocide in undertale is optional. Well, unless you have already lost your soul but that's assuming you haven't. Watch as all monst...
Changing our timeline by PuffyGummyJam
#12
Changing our timelineby PuffyGummyJam
This is a story mostly about Chara and Sans... Chara is starting to take control over timelines, and it's Sans who's wanting to save the timelines. (This isn't a gonna b...
free by asterthedragon
#13
freeby Aster of the Rainbows
How this started? I wasn't sure. Whose fault it was? I didn't care. All I knew was that I wanted it to end. (Frisk...or Chara...or...someone... kills. And they reset, ma...
Completed
I'll Give Up For You by Nyxia_
#14
I'll Give Up For Youby Nyxia_
Undertale fanfic. Will be short, simple and to the point. I'll do more on Wattpad more often!
Undertale! by coffeesforclosers82
#15
Undertale!by smolmari ;)
Yes! I have other fandoms! Who knew right! ;)
Undertale GENOCIDE ROUTE by _Chowwow
#16
Undertale GENOCIDE ROUTEby IKEAworker
blah blah ill do it later please stay 2 read though. :DDD This is my lil cousin so, Its not mine. mkayyy
Undertale: Mystery Twins by FailedTimeline_Sans
#17
Undertale: Mystery Twinsby Sans
Alternate Title: Twins Genocide The Twins, Amber and Lightvhale have always been sweat, they couldn't possibly do bad... Right...?
Judgement by temoamelia
#18
Judgementby Temoamelia
With most of the Underground turned to dust, including Sans' brother, Sans finds he has no option but to fight the demon himself, for better or for worse. Based of of T...