Undertale SpamTenna AU

Series Metadata

Listing Series

• Truly the worst by KaBlu

  Fandoms: Deltarune (Video Game), Undertale (Video Game)  

  • Mature
  • Creator Chose Not To Use Archive Warnings, Graphic Depictions Of Violence
  • M/M
  • Work in Progress

  04 Aug 2025

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Graphic Depictions Of Violence
  • Spamton G. Spamton/Tenna
  • Tenna (Deltarune)
  • Spamton G. Spamton
  • UTTenna
  • UTSpamton
  • Knight (Deltarune)
  • Kris (Deltarune)
  • Susie (Deltarune)
  • Angst
  • Hurt
  • Hurt/Comfort
  • Fluff and Angst
  • Fluff
  • Humor
  • Fear
  • Alternate Universe
  • Undertale Neutral Route
  • Undertale spamtenna
  • Worry
  • Guilt
  • Misunderstandings
  • Tenna gets to fight the Knight yay
  • But only for like 1 minute boo
  • Self-Esteem Issues
  • Self-Worth Issues
  • Art

  Summary

  Spamton finds the courage to do the unthinkable. He changes their fate - only, he had to violently rip into another world to do so.
  Thing is, they already exist in this world.

  * Spamton and Tenna meet their Undertale counterparts and forge their own ending, while dealing with their baggage.

  Series

  • Part 1 of Undertale SpamTenna AU

  Language:

  English

  Words:

  13,886

  Chapters:

  5/8

  Comments:

  98

  Kudos:

  669

  Bookmarks:

  132

  Hits:

  9,988