The Canon Archive
canonarchive.bsky.social
The Canon Archive
@canonarchive.bsky.social
Welcome to the Canon Archive Bluesky account, where we'll be sharing fun facts about the canon versions of Undertale AUs! Join our Discord server if you want to learn more: https://discord.gg/S8gyM8gSnv
What I like about these designs is that they actually use CanonSwap as their basis, unlike a lot of other ancient OuterSwaps, which use Blueberry and Carrot Underswap.

Nothing else to say about them aside from that.
February 2, 2026 at 11:49 PM
Note: The person who made this post gave OuterSwap to the community, as they didn't feel comfortable with the idea of it being owned by a single person. So please don't bother them about ownership (like I did).
February 2, 2026 at 11:49 PM
Most people treat MnstrCandy OuterFell as canon due to how iconic and high-quality it is, but sadly it's just not true.

I can't lie though, the fact that THIS of all things is the real canon OuterFell is extremely funny to me.
February 2, 2026 at 10:59 PM
It was created on February 29th, 2016 by Myssix on some site called Drawception (basically Gartic Phone before Gartic Phone). It was just a crappy sketch of Underfell Papyrus under a starry background. No, the design doesn't change in any way; it's literally just Fell Papyrus.
February 2, 2026 at 10:59 PM
Overall, I like MurderFell Sans' design, especially the face mask and purple blood. I just wish the color scheme wasn't so weird... don't know if I vibe with the pink undershirt or the reddish-brownish jacket.

Anyway, it's a pretty cool canon.
February 2, 2026 at 10:26 PM
Contrary to popular belief, Renmargo isn't the owner of DustFell, as their post was made on June 9th, 2016:
www.deviantart.com/renmargo/art...
Dustfell by renmargo on DeviantArt
www.deviantart.com
February 2, 2026 at 10:26 PM
As an extra fun fact, NegativeShift is actually the oldest Negativetale combo AU ever.
January 27, 2026 at 2:06 AM
And finally, a completely different person left a comment on the post about their own idea for an AU + Shift AU, which ended up being canon DustShift. (Like FellShift, QuillBot seems to be having a hard time translating the name, but it is DustShift.)
January 27, 2026 at 2:06 AM
Second of all, the third sentence is a NegativeShift description, talking about how Chara "betrays and kills Asriel."
January 27, 2026 at 2:06 AM
For starters, the first sentence is a description of FellShift, with Chara and Asriel's personalities being based off the weird Fontcest Underfell that used to be popular. (For some reason QuillBot doesn't translate the name correctly, but 펠 means Fell and 스슆 means Shift, so it does say FellShift.)
January 27, 2026 at 2:06 AM
According to the artist tag, they seemed to have gone by "Ranking" when they drew it, but the original source of the art has yet to be found on any site. It's possible it was deleted without a trace, or it could just be lurking on Tumblr or Instagram somewhere. We still don't know.
January 26, 2026 at 11:32 PM
It was discovered on a Planet Minecraft post from January 31st 2016, when a person named Nivarelys (not the creator) made a Minecraft skin of it as fanart. They sent the original artwork as their source, but no link or author credit. www.planetminecraft.com/skin/mangle-...
Storyfell - Chara Minecraft Skin
Hope you like it C Download skin now! The Minecraft Skin, Storyfell - Chara, was posted by Nivarelys.
www.planetminecraft.com
January 26, 2026 at 11:32 PM
There's only three pieces of canon info for SwapDust:

1. Papyrus kills kids specifically for some reason, making him a child murderer.

2. Phantom Sans is confirmed to exist. (Technically not a given; in some takes he doesn't even show up.)

3. Phantom Sans is an "illusion", meaning he isn't real.
January 26, 2026 at 8:35 AM
The AU is referred to as "If you combine Underswap and Dusttale", which would make it count as SwapDust, just like how "Dust + Swap" counts as DustSwap. The order of the AU combination matters more than the direct name itself.
January 26, 2026 at 8:35 AM
The lore of canon DustSwap essentially goes like this: Swap Papyrus starts killing people, Swap Sans tries to stop him, and Papyrus hugs Sans before asking him "what's your EXP, brother?" Then he kills Sans instantly. San reappears as a Phantom and starts directing him to kill more people.
January 26, 2026 at 7:37 AM
DCInside is pretty much the Korean equivalent to 4Chan. Dusttale was originally created on that site, so unsurprisingly there are going to be a lot of Dusttale combo AUs there. Trust me, we haven't even scratched the surface yet.
January 26, 2026 at 7:37 AM
Technically, the AU's official name is just "Underfell's AU + PopcornPrince's AU", but it still counts as FellSwap due to the order of the AU combination. As long as the combo order still matches up, any name is perfectly valid.
January 26, 2026 at 7:04 AM
This AU is lovingly referred to as "FellSwap Cool" or "Rickass FellSwap" by the Canon Archive, due to the description saying "@underfell's au + @popcornprince's au = coOL", and the k in "You just want your ass kicked!" looking more like an r.
January 26, 2026 at 7:04 AM