Sam and Dean get word of a new case nearby: that of the mysterious "Mt. Ebott" where all that dare climb the mountain are never to be seen again. Of course, being the Winchesters, they climb up the mountain to investigate. After all, what's the worst that could happen? Takes place in the pacifist run. Rated T because Dean swears a lot.

After hearing about the case of missing children around Mount Ebott, John decides to investigate, and leaves Dean and Sam at a hotel while he's hunting. But after a week of staying in a locked hotel room, the boys are low on supplies, and venture out to go grocery shopping. Things do not go as planned, and thus the game begins.

Undertale and Supernatural. Rated teen cause of Dean's mouth. (though maybe it should be M..nah, its fiiine) I suck at summaries. I promise my writing is better than what my crappy intro is leading you to believe.

Sam and Dean have a case- six human children have gone missing and all leads go to Mt. Ebott. While investigating, they managed to get themselves trapped underground, along with Castiel and a human child named Frisk. Team Free Will is introduced to a crazy world they never thought possible, and realize that FIGHTing is not the only option.

When Sam and Dean fall into Mt. Ebbott on the search for a lost child, they encounter several new beings. A demonic flower, a friendly goat lady, and even some weird skeletons. Sam and Dean have plenty of fun trying to find their little friend, but when they learn the true secrets of the Underground, they realize their search is more desperate than they though.

In which Death gets some good food and Sans gets a bit of a warning advice from an unlikely source- One-shot

Six months after a mountain full of fae suddenly gains a mine full of monsters, a red-eyed child goes on a killing spree. But when Garth dispatches the Winchesters to Ebott to investigate, none of them expect the consequences to reach the highest levels of Heaven itself. And the surprising friendships the brothers make along the way might be more vital than they seem. (AU, gen)

Chara, Frisk, Asriel, and Flowey meet Dean and Sam. Good times are not had, everyone hates the Winchesters, and they learn new things about Sans.

Dean thinks Sam is dead, and Toriel is well... Toriel

What happened to yellow eyes between season one and two? He went where Sans told him to of course! Because no one messes with Pap and gets away without having a bad time.

Its Sam's death day, so Dean already hates life because of the stupid anniversary, but this? He really did NOT need this robots help in being miserable.

Temmies, Muffet, and Winchesters oh my!

The Winchesters meet Alphys and Undyne

Where Dean is insensitive and bad with names, Napstablook is sensitive, and Sam has killer death glares.

Title says it all, our favorite skeletons from the under ground meet Sam and Dean. chaos ensues due to magic, puns, face paint and flowers. poor sam. Oneshot.

Sam and Dean fall down a hole. Rated T to be safe.