Undertale AUs (in my opinion)
  • Reads 19,838
  • Votes 610
  • Parts 33
  • Time 14m
  • Reads 19,838
  • Votes 610
  • Parts 33
  • Time 14m
Ongoing, First published Feb 13, 2016
Hi! This is a random idea I came up with, and in it, I'll be listing every undertale au I know of, and (at least) every main character within them. In my point of view, of course. If anyone wants to share their views on any of them then fine by me, also tell me if there are any I missed and should check out.
Also note that I do try to learn about them, but there are many different views on each, so refer to earlier. I may add some AUs I have not heard of, or don't exist (which I highly doubt) and have created by myself.
Cover art: http://img0.joyreactor.cc/pics/post/Undertale-%D1%84%D1%8D%D0%BD%D0%B4%D0%BE%D0%BC%D1%8B-Frisk-Undertale-%D0%BF%D0%B5%D1%80%D1%81%D0%BE%D0%BD%D0%B0%D0%B6%D0%B8-2651184.png
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A Strange Feeling (Sans X Reader)

13 parts Ongoing Mature

Do not expect consistent updates as life gets busy 🙃. This is rated mature because of strong language. You are a 24 year-old in college and have loved Undertale since the beginning. You enjoy all the aspects of the game; the story, the lore, the music, the backgrounds, and most importantly the characters. You've started having a strange, almost malicious feeling related to the Genocide run and that creeps you out. So, you start a pacifist run and after a while, you fall asleep. You wake up in Undertale and thus begin your new journey. Through your travels, the strange feeling comes back, but as a different emotion. Perhaps the only one that can help you with this feeling, is a certain punny skeleton. (I tried my best I'm not very good at summaries 🥲.) (Also I am so sorry for the kinda weird writing this is my first time writing a story. So I welcome constructive criticism.) Started: January 26, 2025 Ended: ???