.°✧•.⁠Undertale AU's Canons.•✧°.

Welcome to this account, where I try to collect most of Undertale au's canons. Hope that it will be a big help for everyone and me as well. I will also add head canons if you want to add your head canons for a specific au to have some fun, and i will mention the owner of the head canon as well. Thank you for reading.

[shosho2480]

Those are the AUs that I will be adding for now:

Underswap

Underfell

Dusttale

Killertale

Horrortale

Dreamtale

Ink

Error

(those will be in the far future)

Fluffytale

Aftertale

Swapdream

Dreamswap

Outertale

[shosho2480]

Underfell Canon (3)

Does Sans's eye turn the classic colors when actively using his gravity/spacetime magic, does it stay the same color, or does it flicker, sa

About underfell Sans's eye.

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Fella i have a question... Undertale has 93 possible endings. How many does Underfell have? —— 94 endings. The very secret ending is that yo

A secret ending

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Could we take more info about chrome •w• Chrome is a bat monster that loves his job, his friends/boss/customers, and the clothes his boss g

Info about Chrome

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FUN FACT: Papyrus owns royal guard armor, but HATES wearing it. He never wears it unless its official business with asgore/undyne. another

More info about fell Papyrus

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UF-Ruins: Toriel finds you

I didn't say i was going in the order of the plotline did I?!?! anyways, I've thought about how Toriel, wouldn't try to kill you. Instead sh

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UF-RUINS: dialogue and idea scraps

some sketches I'm trying to figure out how it would be possible for Flowey to accompany you through Toriel's home without her knowing he's a

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UF-SNOWDIN: Snowed Inn

different dialogue after the whole monster serving monster pie on your behalf ordeal and meeting a couple of boneheads- the kid is pretty w

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UF-RUINS: You found the freezer!

oh so curious~ ! I NEED TO SLEEP, BUT BEFORE I FORGET ---- there WOULD be an Extra room in Toriel's Kitchen: The closet !!!!!!!! brooms, ext

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undyne gets an updated design because i think her as a character would prefer combat boots over the tall red latex boots. Also not full red

Fell Undyen's design update

[shosho2480]

.°✧•.Underfell canon (2).•✧°.

it was to much to post it in one post, so underfell has theee posts now. 🥲

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Hi! I was always wondering. What is Undyne's place in royal guard? Fandom supports the Idea of Papyrus being the captain (or sometimes some

About Undyen's role in the royal gaurd

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Ooh ooh I got a question. Why does sans wear sneakers instead of slippers? he likes the squeeky sound it makes because everyone hates it

More info about fell Sans

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What's the info on UF!Toriel? :O There's so much fanon about the skelebros but next to nothing about her and it'd been great to get somethin

More info about fell Toriel

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Is Underfell it's own universe where everyone has always been evil or did something happen that made everyone turn to that? I've been waitin

underfell backstory

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What kind of experiments does Alphys conduct? Mean ones like "who can endure Season 2 of Mew Mew Kissy Cutie?" Well the obvious answer is te

About Alphys's experimental

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Can it be canon that she bought a pair of robotics limbs from Alphys as a new fashion trend? YES , I was going to say something stupid like

More info about Muffet's hands

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Since this blog is starting to take back traction, I wanted to ask something that really inerests me, What is Sans and Papyrus' relationship

more info about underfell Papyrus and Sans relationship

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All I need is confirmation. Frisk CAN choose between “Fight” but can’t kill due to not have the heart to, “Convince” to persuade monsters (m

Info about the buttons in the battle state when Frisk enter a battle

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What is Gaster like in this au, if you don’t mind me asking? I’ve seen so many interpretations (wacky mad scientist, edgy stoic evil man, b

About underfell Gaster

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Can’t draw on cpu yet so here’s a brief lowdown Chara doesn’t hate humanity nor do they love it, they knew what humans did wrong yet they kn

I don't know how to named it, but it's about how Chara got into the Dreemurrs' family.

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(Continue)

[shosho2480]

.°✧•.UnderFell.•✧°.

(Canon)

underfell original creator blog

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Underfell

Underfell is an AU of the well-known role-playing video game Undertale where all of the good-natured monsters who don't actually want to hur

A reliable wiki source of underfell's information

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The rest bellow you can find them in underfella's blog, but i just put them for easy reach when i want to know something specific.

:)

ITS YA BOYZZZZ REVAMPED, REDONE, FINALIZED FUN FACTS SANS -SARCASM - He’s OKAY with  puns but he prefers knock knock jokes much more - he do

info about the underfell brothers

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can you believe it, it only took me a few years to finally draw frisk and flowey FUN FACTS UNDER READ MORE FRISK  - THE SAME, but a lot more

Info about underfell Frisk, Flowey and Toriel

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Can you believe it FUN FACTS UNDER READ MORE ALPHYS -does experiments on everyone (mainly fashion for the main cast) -VERY CONFIDENT, never

info about underfell Alphys and Undyen

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finally....she is complete... that says CAPE* by the way FUN FACTS UNDER READ MORE MUFFET - is the richest, richer than asgore  -flexes on a

Info about underfell Muffet

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UF GRILLBY I’m not gonna lie and say I had the same idea for Grillby I always thought he’d be green and have suspenders. BUT because he is s

Info about underfell Grillby

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THE MAN, THE MYTH, THE LEGEND.. METTATON instead of saying ‘OH YES’ as his intro he says ‘DARRRLIINGGG~’ FUN FACTS -Mettaton is still famous

Info about underfell Mettaton

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HERE THEY ARE !!! I lagged so hard for napstablook... -Loathes anyone who is affiliated with Alphys and Asgore -Giggles A LOT -Has enough co

info about underfell Napstablock

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finally this guy FUN FACTS -Asgore is by far the tallest and cruelest character in UF - He’s been collecting both monster and human souls (E

Info about underfell Asgore

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(Continue)

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(Head canon)

no head canons for now.

[shosho2480]

.°✧•.UnderSwap.•✧°.

(Canon)

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Canon Underswap research

Made By Demirramon

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about & F.A.Q

Hi, welcome to the “official” underswap au blog, this is where we reblog everything underswap and try to answer any au related questions as

that was PopcornPr1nce deleted Underswap tumblr.

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That's from the channel Amlschill.

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All this are the sources I found informations about underswap.

If there's any other source of information you'd like to share then share it.

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(Head canon)

no head canons for now.