Kaiju Paradise x Undertale: Altern...by The Hidden One
A long time ago.. After the First and Last Overwriter Reset the entire Universe of the Underverse, It all went to hell.. 2 Parallel Universes were next to each other.. U...
Lovesick [Idol! Killer Sans x Read...by Chip
Your friend surprises you with tickets to a concert. The thing is you don't know who's playing at the concert! None the less know much about music. You friend drags you...
Little Wish (Dreamtale Au - Book 1...by Ali Craft
It had been many years since the apple incident, but the day Dream had lost his brother still continued to haunt his mind. He wanted nothing more than to have his brothe...
Jaune Error: Across the Alphaverseby Core Jaune
Jaune Error is a man who was kicked out of Beacon Academy because of this, he decided to prove that he is not a weakling and can fight, he went to Forever Fall and kille...
Malaverseby Black Roses
This is a continuation of Maladaptive, but it's in the present instead of the past. Maladaptive is still going on, but this is just if you want to see what's going on cu...
Ask-BakerTaleby Ask-BakerTale
I don't know what to do, and I'm not writing for the sammy x reader right now, so
Giv me questions
Sigh's Journalby *=Dial-Up=*
Hiya! It's me, Sighnerd, hee-hee.
I'm making a journal filled with stupid, silly stories of me, or maybe some art I've drawn, random doodles/notes, and...
Some PRIVATE t...
Karma Sansby I burned the water
*Heya. You probably have heard me from somewhere or this is your first time knowing my existence. I think it's the latter but hey, it's fine not being well-known to othe...
SOLARVERSE: MASKEDby XABITE
"Amidst a thousand sorrows and a thousand deaths... Through this bitter mask, I have no choice but to continue my trek."
Candytale( undertale au) by ÄŠHËŚ
I know not to creative for a name😅 but anyway this is just a au about a the monsters turning into candy I'm pretty sure there's already one where the monsters are candy...
underRune(also in ao3)by Aleca's notebook
just an undertale/deltarune fanfic and my version of a backstory
Edit: Jesus Christ why did it kill the cover quality so much!?
Ask and dare the multiverseby TheDragonOfBalance
Just as the title says. Ask and dare our kidnapped- I mean honored guests as they arrive in a white empty void. Each chapter will have someone new to join in the asks an...
Blooming colorsby GaySkittle1nk
After Lotus escapes his old home, he hopes to reach further and not get caught again, but as he does so, a stranger offers to help him, but seems rather pushy about it...
To Hate Or To Love? (errorxink)by Undertale_Fan64
A enemies to lovers errorxink classic. I will add side ships, but right now they are still being considered. If you want to suggest your ship, just comment what ship in...
Undertale Resurgence: BOOK 1by Random
⚠ UNDERTALE IS OWNED BY TOBY FOX. ALL CREDIT GOES TO HIM, I JUST MADE THIS AU (ALTERNATE UNIVERSE). ⚠
So many resets. Even after all that time, Frisk wouldn't stop.
Whet...
If I was in UNDERTALE AU.by Amethyst A.
An alternative universe of UNDERTALE where my ocs live and end up becoming wrapped up with the monsters underground, and in AUs. Follow Kilsk as she meets Flowey, Napsta...
WisteriaTaleby Remilyn Mitch Tavarra
This Au start with a skeleton who has a special hidden magic that no other monsters in his Au have ever seen he named himself as "Sans" but in other sanses fro...
Desert Sanctuary Guidebookby KarmaSpidr
Clover doesn't give up his soul because justice still needs to be delivered.
The Wild East, and later practically the entire Dunes, declares independence. They declare...