Sans AU Headcanons

Sans AU Headcanons

Angelmaybemynickname

Reads 6,445
Votes 153
Parts 38

MatureOngoing14m

Last published Sun, Nov 8, 2020

bluesans dreamsans dreamswap dreamswapnightmare dustsans

My au headcanons for each character! Each character and AU belongs to their creators!

All Rights Reserved

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Distrust
Dust trusts his fellow Bad Sanses with his life, but when he gets betrayed he leaves the Bad Sanses and hides in the Omega Timeline. Dream and Cross do the best they can to help Dust, but Dust has vowed to never trust anyone ever again. This is based on the Rusttale multiverse so things may be slightly different than you expect.
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[DISCONTINUED] Undertale AUs x reader
Just some Undertale and AUs x reader for funsies <3 Happy 2025!!
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Under rewrite [lore] [evil lux au]
Welcome to the lore of [E.L.A]
The Silent Destroyer
cover art isn't mine and belongs to its rightful owner Error is finally ready to give in. The multiverse he spent so many eons protecting and keeping the balance is rebelling against him. The AUs he has spent so long protecting are rebelling and are soon to be destroyed, but worst of all, all of the Sanses hate him for some reason. And I mean ALL. Why should he continue? There's nothing to live for anymore. Not even his family can help with this. Or, the people he thought to be his family.
Brotherly Trouble [COMPLETE ✔]
After Dream falls into the darkness, they then team up with there brother in some trouble. Destroying multiverse but Nightmare realized that he only want to be with his brother. While Ink, Blue, Fell, Cross, and Sans want there friend Dream back as Shattered destroys everything they love. Has Reached #1 In ShatteredDream
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'Can I Have A Say?' {AU Fanfic}
Color and Nightmare have been fighting over Killer for a long time, trying to get him to stay and switch sides over and over. But nobody has asked Killer how this makes him feel. Feeling all that pain, being reminded off his horrible past, and then getting it all torn away from and being forced to start over again. Killers soul has been at the peak of both redemption and pure insanity nonstop to the point where he can't even tell who he's meant to be anymore, and neither of his two 'allies' seem to notice it. All he can do is hope and serve, and maybe one day, make his decisions himself. {Credit to Artist!}
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Soul Fused
Nightmare, who has been dead for the last century, stumbles across a dying Sans in a destroyed au and takes him under his wing. Er, tentacles. From there, they start a band of rejects to get revenge on his brother. Sadly, said brother has other plans for them. That wont stop the shakily made team from bonding and having fun though! (AU where Killer is the leader of the 'Bad Sanses'. I own pretty much none of the characters)
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Reborn [Error!Sans fanfic] [Fgod]
[Cover belongs to me] Error is the (forced) god of destruction, Ink is the god of creation. Both are needed to keep the balance, but while one is loved the other is hated. Ink together with the judges elaborated a plan to finally stop Error. A deadly trap. Impossible to escape even for the feared destroyer. But someone is not following the plan. Things get out of control. Error gets out of control. Although things don't go exactly as planed, and the results are more chaotic than they should. It still worked. Error was finally gone. Lost into the VOID, scattering across time and space. But someone had their eyes on the broken destroyer for a long time, and they were waiting for this moment. Now they can finally act. And take care of their chosen child. ... Error woke up at the sound of his own crying. What? What's this sound? Why can't he speak? Wait, where is he? Why can't he get up? ...Uh? Why is he... so small? ...what happened to him? _________________________________ - Error!Sans is a variant of the character Sans from the game Undertale. Error!Sans was created by LoverofPiggies aka CrayonQueen - This story is inspired by 'Healing what has been broken' by harrish6. Although it happens in a different way, Error will still fall into the VOID. But instead of just falling into a different Multiverse something else happens. - fgod Error concept belongs to @harrish6 - Undertale belongs to Toby Fox Mar 10, 2020
CRIMINAL AMNESIAC
When Dream loses his memories after receiving severe head trauma in battle, Nightmare and his team choose to take advantage of the situation...
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HP (Dust x Goddess Child Reader)
Dust HATES humans. Dust barely LIKES anyone. When the Bad Sanses are forced to guard a young goddess, Dust gets stuck alone with the child.
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Dust trusts his fellow Bad Sanses with his life, but when he gets betrayed he leaves the Bad Sanses and hides in the Omega Timeline. Dream and Cross do the best they can to help Dust, but Dust has vowed to never trust anyone ever again. This is based on the Rusttale multiverse so things may be slightly different than you expect.

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