Derpy was on her regular mail route when a sudden crash caused her to meet the most peculiar creature. A little creature called Temmie. Now, she finds herself promising to help the little guy get home. Little does she know, the creature has a charm that will make anypony want to befriend the lovable little guy.

This is a MLPXUndertale crossover. May contain minor spoilers to Undertale.

I would like to thank Brony Dragon for the cover art!

Featured on Fimfiction's main page on 1/24/2016!

Warning: Contains MAJOR spoilers for Undertale.

*something has gone terribly wrong.
*thanks to the kid, the barrier was destroyed and all the monsters were able to return to the surface.\
*everyone was happy. except for the flower, i guess.
*but we couldn't help that.

*this morning, i woke up back in my own room in snowdin,
*and everything had been... Reset.

*but, I remember the entire last loop,
*toriel doesn't sound like herself
*and when the gates to the ruins opened,
*what came out wasn't the kid.

*it was a... very... pink foal.

20-year-old Ryan Burbank is living with his girlfriend in their woodland home when he is struck by a mysterious infection seemingly out of nowhere. To everyone's horror, his sickness spreads quickly throughout his body, shutting him down one piece at a time. The doctors are at a loss of what to do about this new form of bacteria. Ryan and his loved ones choose to keep fighting until either a cure can be discovered...or the pain becomes too much.
At the height of his suffering, he discovers a happy little show while watching television in his hospital room. The bright colors and happy attitudes of the cartoon equines provide him with a much-needed escape from the daily pain of being killed from the inside.
Eventually, the pain becomes too much and he decides it would be better to go out surrounded by his family, in the embrace of those who kept him company throughout his short life. Just as he starts to fade, his eyes wander to the screen of the hospital room television and the cartoon ponies who adorn it. Something strange begins to occur...almost like the screen is pulling him in. Tunnel vision, maybe?
No, that can't be it...why can he hear his name being called by a very familiar voice? And why is she...crying? Who is this crying, familiar voice and why does she seem to know him?

[img]https://orig10.deviantart.net/bf87/f/2014/010/3/0/recup_pinkie_sphear_1_2__by_xdrawdex-d71pigr.gif[/img]

SPOILERS IN THE COMMENTS

Rated "Teen" for language and the "Sex" tag is for all of the sexual humor and suggestive situations. If I decide to up the suggestive stuff in the future, I'll change the tags and rating to fit that change.

Cover by enamis.

MLP/Undertale crossover.
Not a PWNY-verse story.

Long ago, the Monsters and Humans fought a great war. The Monsters lost, and were sealed in the Underground. It would take the power of seven human souls to break the barrier that kept them imprisoned. They only had six. And so the Monsters waited and hoped, praying that another human would find their way to the Underground. Some thought the seventh soul would give their King the strength to break the barrier. Some dreamed of a human who would be their friend, and save them all...or had nightmares of one who would bring back the war.

...but nobody came.

...but somepony did.

Eons after the war, with no way to tell how much time had passed above, a tiny blue filly with wings and horn fell into the underground, calling for her Mama. None knew the poor creature's nature or origins...but her soul was powerful with magic, even more so than a human soul.

None can know what will come...of this little 'Woona'.

Cover art by Sanyo21

One night, before Hearth's Warming Eve, Princess Celestia goes to light a fire to keep warm.

A voice in the chimney asks her not to do so.

Princess Celestia had a good day. Luna had been going out more often and was becoming quite fond of nightclubs, her dear niece Cadance had formally announced her pregnancy—though, privately, Celestia felt she was too young to be a great aunt—and, of course, Twilight, her beloved former student, had taken on her first student and Celestia couldn't be prouder! Yes, it had been a good day.

Celestia Sol woke up much like she did every day the morning: sun waking her as it danced upon her eye lids. Wait, the sun? Celestia's eyes snapped open to reveal she was in Twilight's old room in the observatory. On the other side of the room was a smaller bed where a small dusky unicorn was drooling on her pillow.

Clearly, it must be Tuesday.

Preread and edited by Stahl, Kinsley, and Jumbled

This story is a sequel to Stardust

Times are changing for Equestria as Twilight’s return brings with it news of people and cultures from beyond the peaceful world everypony knows. Aid and volunteers are freely offered to help the besieged humans of Earth because every Equestrian knows that’s what good friends do. Unfortunately, making friends can also have the unintended consequence of making enemies.

When the monsters besieging the humans strike at Equestria with a level of brutality not seen in over a thousand years, the cry for help is sent to all the kingdoms of the world. Honored allies step forth to fulfill ancient treaties and oaths. Enemies, old and new, bury their grievances. An alliance never before seen in Equestria will be created to combat the monsters from the void.

And because of these events, a grim but welcome sibling to the XCOM project is born.

(XCOM/FiM Crossover)
(Sequel to Stardust, which I recommend reading before starting this. Fortitude Amicitia and Broken aren't required reading but are supplemental to the storyline)
(Gore tag for blood and violence)
(Alternate Universe tag because of the divergence from canon that Stardust has caused)
(Uses elements of Season 4)
(Coverart produced by the amazing Carnelian!)
(Many thanks to Arzoo, BradTheBrony, Vandenbz and Setokaiva for prereading!)
(As of 03/07/2016, the prereading team consists of Arzoo, BradTheBrony, Noble Cause and Metallusionsismagic!)
(Complete with it's own TVTropes page as part of the Stardust continuity. Could use some updating!)
(Character tags will be added as chapters are added!)
(Featured 5/12/2014! Thanks folks!)
(Possible spoilers in the comments! BEWARE!)

Now with an audio reading by Skijarama!

Now with a print version available for order!

A purple Alicorn shows up one night and then vanishes into thin air. Many wouldn't think anything of it besides how strange it was.

Not Rainbow Dash.

Rainbow Dash has met that Alicorn before.

The implication it brings and the guilt that follows leaves Rainbow Dash with questions weighing on her mind.

Luckily, in the crushing pain of reality, she still has friends.

***

Cover art created by the extremely talented invertigo and paid for by the amazingly awesome Shipmun. Oh my gosh it's just so cool.

We all know the story of how Sunset Shimmer left Equestria and went to the human world. But what if that didn't happen? What if the mirror that Sunset took didn't lead to the Equestria Girls universe, but the world of Remnant? How would Sunset's life take a different turn? Well, just read and find out.

(Rewrite of the original Sunset Huntress)

(Crossover between this Story, The Beacon's Tempest, and Kamen Rider Arms)

(12/29/2016) This story got featured! Thank you all!

Twilight Sparkle has recently transferred to Canterlot High. On top of tests, studying and all the drama that comes with that, Twilight also has to deal with monsters. Yeah, you heard right. Twilight finds herself embroiled into an age old conflict that could rip the world apart, if she doesn't step up and become a Guardian, a defender of earth from the forces coming forth from the Witching Hour. Twilight cannot face this threat alone, others will join her fight. But will it all be enough to stop the evil that's coming? Or will High School be what gets this young lady?

(A new story from the creator of Equestria Noir. While characters from that universe will be present in this story, strict knowledge on that series is not necessary to enjoy this story.)

Cover Art by gent777