Undertalegenocide Stories

25 Stories

Neglected Judgement (MHA X Undertale) by Aaron2751
#1
Neglected Judgement (MHA X Underta...by I burned the water
This is a remastered version of Quirkless Judgement but instead of Sans dying with Chara, Sans works with the humans to defeat the player. As they reset the world, the 4...
Undertale AU  by kawaiibun_
#2
Undertale AU by kawaiibun_
What happens when the timeline glitches during Chara's conversation with Frisk in a genocide run?
UNDERSTABILITY -genocide run- by gabrielburrito
#3
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...
free by asterthedragon
#4
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
Undertale! by coffeesforclosers82
#5
Undertale!by smolmari ;)
Yes! I have other fandoms! Who knew right! ;)
Undertale: Death From Above by VY-RiSS
#6
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...
Genocide (an Undertale Fan Fiction) by TheUltimateSinner
#7
Genocide (an Undertale Fan Fiction)by SoulStalker
Frisk wants to look for chara will she be able to find her?
The Power of NEO by ValiNate
#8
The Power of NEOby Nate [REDACTED]
Frisk meets Mettaton NEO for the first time. *Genocide*
Changing our timeline by PuffyGummyJam
#10
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...
You're Safe Now [UNDERTALE] by PoopyButthole69aaa
#11
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...
I'll Give Up For You by Nyxia_
#12
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 GENOCIDE ROUTE by _Chowwow
#13
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
Papyrus by katwritesbs
#14
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...
The judgement hall [Undertale spoilers] by Boommasterstories
#15
The judgement hall [Undertale spoi...by Roxy Talks
This story is about the acclaimed infamous genocide run of the game called undertale!
Disassemble by donateyourbones
#16
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...
Storytale (ON HOLD) by Guillermo456
#17
Storytale (ON HOLD)by Seraphic Dreemurr
Long ago, a Djinn dwelled above Mt. Ebott. He was a resident of this world as well as another only mentioned in books; one filled with mysteries and marvels such as the...
Undertale: Mystery Twins by FailedTimeline_Sans
#18
Undertale: Mystery Twinsby Sans
Alternate Title: Twins Genocide The Twins, Amber and Lightvhale have always been sweat, they couldn't possibly do bad... Right...?