Edit: Now a collaborative effort with Loyal2Luna

Commander Shepard has been through a lot, but now that the Reaper War's over he can finally relax and take a little R&R, right? Soak up the sun, grab a few drinks, spend some quality time with Tali, introduce a new race to the galaxy... wait, what?

In the aftermath of the war, a new species has been discovered amidst the destruction and fire. A species that have access to powers never seen before, powers which could prove vital to the continuation of galactic survival.

The Citadel Council has elected to send Shepard, along with the rest of the crew of the Normandy, to introduce Equestria to the universe outside of their solar system.

Now Shepard must wade through obstructive bureaucrats, antagonistic journalists, and the odd, angry prince in order to bring Equestria into a new age of space and adventure.

So settle in, it's going to be one hell of a vacation!

Now has it's own TvTropes page

This story is a sequel to Upheaval: Breaking Point

Following the events of Breaking Point, Twilight Sparkle and her friends discover that Equestria's demise may not come from an enemy invasion, but from within. The Barrier Lands and the Heartland begin the slow and uneasy process of reuniting into a single Equestria, but this long-delayed joining is already in danger at its conception.

With Celestia's power in her grasp and her agents by her side, the wheels of Black Rose's plans for Equestria's future continue to turn. However, her brazen gamble has done more than just bring down a centuries-old barrier. Ancient powers begin to stir: the remnants of a dark period in Equestria's history, the immortal inhabitants of Celestia's homeworld, and a rising tide of darkness coming ever closer.

A rewrite is coming soon. Please don't read this how it stands, it's bad.

T for Teen. Violence, and Major swearing. Fallout 3 crossover, because it hasn't been done before.

2022 REWRITE IN PROGRESS

After being rudely awoken from Cryo-sleep, John-117 finds that the Forward Unto Dawn has been sucked into a gravity well, causing it to fall towards an unknown planet. In the crash, he is separated from Cortana and falls alone into the Everfree forest. In addition to this new complication, old memories from a scarred and tragic past haunt his dreams, putting his remaining sanity on edge.

However, he has little time to ponder these thoughts, as he encounters the planet's... peculiar... inhabitants.

First 19 Chapters proofread by Bravo 539 and Shadownamesto.
Credit for the intro sequence goes to Blaze Spectrum.

Current rewrite will not necessarily follow the old story but certain events and details may be reused.

It has been several months since the disappearance of Twilight Sparkle..

One night, after watching her sister raise the Moon and set the heavens alight, Princess Celestia begins to bed down for the night, only to be interrupted by portal forming in her room. From out of the portal comes none other than Twilight Sparkle, garbed in strange armor.

Princess Celestia, along with Luna, Cadence, and Shining Armor, are overjoyed by the Element of Magic's return, but are justifiably curious as to where she had been and what she had been doing. And so, Twilight begins her tale. A tale of survival against impossible odds. A tale of a people fighting for the most basic right of all sentient beings. The right to exist.

Filthy Rich lives up to his name. But he didn’t get rich and stay rich by wasting money on stuff he sees as unnecessary. So when his home accidentally burns down he doesn’t bother with a hotel, he simply asks a favour of the family his family have had a long standing business partnership with; the Apples.
So until the insurance is paid and the house rebuilt, Diamond Tiara and Apple Bloom are sharing a bedroom.

Four authors, eight characters, one labyrinth and a lot of violence. Oh this was a bad idea. How was alcohol not involved?

Four (in)famous Wastelanders find themselves unwillingly pulled into a place controlled by the mad goddess Katastrofis. Along for the ride are four ponies, each with a connection to one of the Wastelanders. Their task is simple: survival. But with the terrors of the labyrinth and the fickle nature of its mistress standing in their way, do they have any real hope?

STARRING:
Thomas and Luna (tony1685)
Ethan and Twilight (ed2481)
Scarlet and Celestia (Omega_code)
Aeron and Rainbow Dash (Shadowflash)
Events are non-canon to their home universes, though events mentioned may not be.

This is a collaborative piece, so give those guys some loving too. They're all great guys.

This story is a sequel to Past Sins

Hearth's Warming is a time for friends and family to come together, celebrate harmony, and welcome the new year. Nyx is looking forward to just this as she rides the train to Canterlot with Spike and Twilight. She's going to meet her extended family for the first time and wants nothing more than to make a good impression. Yet, the sheen of the holidays can't hide the trouble caused by meddling grandparents, relentless reporters, and a paranoid uncle.

They wanted a monster....So they will get one.

(This was written in response to a challenge to write a one thousand word HIE)
(It is one thousand words. Fimfiction is getting the count wrong.)

Some say reality and the physical world are tied into a series of strings. That space and time are woven into an unbreachable fabric, a thick sheet that separates an unthinkable amount of worlds and realities. None of this is true, yet at the same time, it is. With a little influence and the right amount of force and energy, holes can be created, passages through which one may slip through. This isn't the only way, however. There are other ways. Naturally occurring tears and rifts that fit perfectly in the order of the universe.

The Battle of the Western Coast has been over for years now .Treaties have been signed and alliances formed, but the land has fallen into a restless peace. Trouble brews in Equestria. While most of the Lotkin tribes have settled on land granted to them by The Royal Sisters, renegade bands still roam the land, driven by some unknown force.

A fighting legend, a leader and the founder of Equestria's elite Royal Special Tasks Group has disappeared without a trace. His legacy is carried on by those he trusted most, running and expanding the unit he started, but can they continue without the experience and guidance he provided?

Another may have arrived to help. A man on a continuous search for his lost brother-in-arms stumbles onto the path his friend had previously walked, quite by accident. With luck, he may find what he was looking for.

This is a sequel to the first. If you don't read the first, you wont understand half of it.

OC Iron Defense created by: Shawn820

OC Howitzer created by: Cyber

OC Swift Paws created by: Danish Adonis

OC Blackjack created by: Reignbow

OC Redflare created by: Radical Prescott

OC Cray inspired from an idea by: It911

OC Kai Silverblade created by: Gale Force