r/UndertaleAU is a subreddit with 12k members. The community frequently discusses au, sans, undertale, art, and dusttale, and the most common flair used is ✧˖°.art⋆˙⟡, ✧˖°.my au⋆˙⟡, ✧˖°.au discussion⋆˙⟡, ✧˖°.memes⋆˙⟡, and ✧˖°.au interactions⋆˙⟡.
❤️A place for Undertale and its various AUs. Separate from Deltarune.❤️
Popular Topics in r/UndertaleAU
#1
Au
119 posts
#2
Sans
88 posts
#3
Undertale
64 posts
#4
Art
29 posts
#5
Dusttale
14 posts
#6
Oc
13 posts
#7
Echotale
13 posts
#8
Core Frisk
13 posts
#9
Mafiatale
12 posts
#10
Character
11 posts
Flair Used in r/UndertaleAU
#1
✧˖°.Art⋆˙⟡
: "OUTERDUST FAN ART :D"
71 posts
#2
✧˖°.My AU⋆˙⟡
: "The Archive Sans"
32 posts
#3
✧˖°.AU Discussion⋆˙⟡
: "I'm surprised that no one have talked about this but what happened to PLAYER's real world body in UNDERPLAYER? (READ DESC)"
27 posts
#4
✧˖°.Memes⋆˙⟡
: "Ironic, is it not?"
8 posts
#5
✧˖°.AU Interactions⋆˙⟡
: "The Snowdin Butcher vs The Hometown Butcher"
5 posts
#6
✧˖°.AU Trio⋆˙⟡
: "ultimatum β"
2 posts
#7
✧˖°.AU Lore⋆˙⟡
: "I'm not in the fandom anymore but I at least have to share this AU concept"
1 post
#8
✧˖°.AU Debate⋆˙⟡
: "What would you do if these two were in time paradox instead"
1 post
Member Growth in r/UndertaleAU
Yearly
+5k members(64.8%)
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Last updated: July 24, 2026