Fics like Undertale Characters Play Deltarune

A mysterious entity has teleported the main cast of Undertale into a strange house with rooms appearing at the creators will, A place that seems to be outside of time itself. However, our friends soon learn this entity is not evil or malicious. It simply wants to show them an alternate Universe… in the form of a video game? Luckily, Frisk is pretty good at those. Meanwhile, Alphys is in the corner of the room, fangirling about the multiverse being real.

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  3. ASAP-UNHARM by Hatchett (Parahumans Series - Wildbow, Undertale (Video Game))
  4. Shackled Heart by MarauderAO3 (Deltarune (Video Game))
  5. Gaming On The Big Screen by KarmaSpidr (Indie Cross - MORØ (Web Series), Shovel Knight, more)
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  7. Another Winter by enzy (Deltarune (Video Game))
  8. Conference Call: Redhead Redemption by breakingamber (Mahou Shoujo Madoka Magika | Puella Magi Madoka Magica, RWBY, more)
  9. Limited-Time Offer by borderlambs (Deltarune (Video Game))
  10. The Roaring GC or: Carol Babysits 4 Other Idiots by TheKamZone (Deltarune (Video Game))
  11. You can't choose who you are in this world. but I'll try anyway (Deltarune SI) by MilkYpotato (Deltarune (Video Game))
  12. Souls And Healing by Rough_TimeST0RIES (僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Undertale (Video Game), more)
  13. Flowers blooms in your SOUL by aokuni (Deltarune (Video Game), Undertale (Video Game))
  14. Second Chances by NovaEndertianal (Undertale (Video Game), Undertale Yellow (Master Sword Video Game), more)
  15. after school, before anything else by sneetlu (Deltarune (Video Game))
  16. Falling Out of Trouble by ShadeofSilentFire (Undertale (Video Game), Undertale Yellow (Video Game))
  17. Bonus Content by SpectrumWriting (Undertale (Video Game), Deltarune (Video Game))
  18. Tell Them What You Saw In Me And Not The Way I Used To Be by Pancakes_for_Dragons (Deltarune (Video Game), Undertale (Video Game))
  19. (it was mutual) by Muinomikuj (Deltarune (Video Game))
  20. A Curious Route by ThatMimeAddict (Deltarune (Video Game))