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1. Survival of the Greatest by c00lsk3l3t0n95

   Fandoms: Undertale (Video Game)  

   • Mature
   • Graphic Depictions Of Violence, Major Character Death
   • Gen
   • Work in Progress

   12 Sep 2026

   Tags

   • Graphic Depictions Of Violence
   • Major Character Death
   • Papyrus & Sans (Undertale)
   • Papyrus (Undertale)
   • Sans (Undertale)
   • Undyne (Undertale)
   • Alphys (Undertale)
   • Asgore Dreemurr
   • Toriel (Undertale)
   • Flowey (Undertale)
   • Papyrus (Undertale) Knows More Than He Lets On
   • Papyrus (Undertale) Needs a Hug
   • Younger Brother Papyrus (Undertale)
   • Papyrus is the Best (Undertale)
   • Papyrus (Undertale) Remembers Resets
   • W. D. Gaster is Papyrus and Sans' Parent
   • Sans (Undertale) Needs a Hug
   • Sans (Undertale) Remembers Resets
   • Kinda
   • Sans is Having a Bad Time (Undertale)
   • Sans has Nightmares (Undertale)
   • Sans is a Bad Brother
   • Sans is a good brother
   • Self-Harm
   • Suicidal Thoughts
   • Angst
   • And Lots of It
   • Angst and Hurt/Comfort
   • Papyrus is The Roaring Knight
   • Flowey (Undertale) Being an Asshole
   • W. D. Gaster Being An Asshole
   • This Is Why We Can't Have Nice Things
   • Papyrus Has a Bad Time (Undertale)
   • It's not relevant but it's practically my calling card
   • Self Confidence Issues
   • Alcohol Abuse/Alcoholism
   • Implied/Referenced Abuse

   Summary

   Sans lost the only thing that mattered, and has nothing left to live for. Nothing can bring him out of the endless suffering he has been trapped in- except, maybe, the broken machine in the basement.

   As it turns out, Sans is not the only one who needs saving from himself.

   Inspired by @lafillehonteuse's Bad Brother AU on Tumblr.

   Series

   • Part 2 of Bad Brother
   • Part 8 of Papyrus

   Language:

   English

   Words:

   16,618

   Chapters:

   6/?

   Comments:

   50

   Kudos:

   29

   Bookmarks:

   7

   Hits:

   707