Undertale Comics

A collection of Undertale Comics I found on Tumblr... |Credit Given|

Giant sans x reader

You heard that the monsters were free from the underground and was very happy to see them .When all of a sudden a jock in your school starts picking on you for liking the monsters and called you monster girl .You decided to not go to school .Passing by you hear a girl screaming and went to help. Three humans were thro...

Small (small reader x au sans)

You are brought to a strange void and you are greeted by nice people...err skeletons, But guess what? You are TINY!

The Hoodie Theif (ON HOLD)

Jack is abused and hurt by his mother, so he goes to an abandoned forest every day when he finds something unnerving and terrifiying Mark isn't sure how he got there, all he knows is that he should stay hidden from the small green haired boy that always passed by, little did he know that it was his own carelessness th...

Nightmare Under Universe

Steven and his friends (Pearl, Sans, Frisk, and Peridot) had met with a three dress up kids who turn out to be working for an evil monster in Halloween Town, Oogie Boogie. With that the four ended up in a town call Halloween Town meeting the Pumpkin King, Jack Skellington, and his whole family with a good friend of Ja...

GravityTale - Undertale x Gravity Falls Crossover-(Human!Bill Cipher x Reader)

Frisk, your little sibling, freed every monster in the underground, and everyone is now in the surface, but now that it's summer time, our heroes Frisk and (Y/N) will meet our other heroes from gravity falls, dipper and mabel, oh didnt i mention that you live in gravity falls with toriel, sans, papyrus, undyne, monste...

My Little Puppy (Fell!Sans x Wolf!Reader)

(Y/N) is a human. She had lived her whole life as Sans and Papyrus's pet, which was even more appropriate considering that Alphys had done a few experiments on her giving her dog ears and a dog tail, as consolation for keeping her a secret. Then one day, (Y/N) manages to escape, and meets with Frisk. What will f...

MYSterEY - TaLe

YOU ARE FILLED WITH CURIOSITY

{COMPLETED} Sans x Reader Oneshots

Well, I got requested to do this and I dedicate the first part to them! Basically this is just random scenarios with you and Sans! DISCLAIMER: I do not own Undertale or you. COMPLETED Cover made by @HoundsTooth

GhostTale

Danny Fenton/Phantom was having a regular day, roaming around in the Ghost Zone. So when he accidentally falls into one of the natural portals, and wakes up falling down Mt. Ebott....chaos ensues. Especially when he meets a certain talking flower. Which path will he choose? Will he ever get home? Does he even want to...

That's A Dragon? (UnderSwap Sans x Dragon! Reader)

(OMG the first book that isn't an AU sans x reader!) It's said that all Monsters where trapped in the Underground but what if Dragons were still up on the surface. Thanks to Chara the Monsters are free and are now walking on the surface. Dragons kept themselves hidden causing their species to be forgotten, they're no...

Sans x Borrower reader [DISCONTINUED]

(Not my picture) So basically, this is going to be like sans x tiny reader thing. NO STEALING MY STORY!! That's all. :) and Frisk will be a Borrower too.

All Alone (Giant Sans x OC Reader) (HIATUS)

You're tiny, maybe around the size of a large mouse, and you've been separated from your family, except for your older sister. Then, she's taken away from you and you are filled with BRAVERY, JUSTICE, INTEGRITY, PATIENCE, PERSEVERANCE, KINDNESS, and, most of all, DETERMINATION. Will you ever find your sister? Don't fo...

MortyTale

Rick and Morty have been jumping worlds searching for adventure, and finally they find it- In an alternate universe where Monsters once roamed the Earth freely, but were suddenly attacked and banished by humans. Rick and Morty may have finally found an adventure that will take all of their Determination to survi...

Steven Universe x Undertale(crossover)

The UT gang and the SU gang team up to do something moderately good... I hope this turns out good

Underfalls (Gravity Falls/Undertale Crossover) DISCONTINUED

What if Chara and Frisk get stuck in Gravity Falls? Just read for explanation.

Human!Giant!Sans x Reader (G/T).

you are a normal human. Suddenly giants start attacking your town. The Giants are Human Undertale peoples. One thing leads to another yah yah, just read the story! (Cover belongs to me BTW.)