It is the longest day of the year, and something has gone wrong. Canterlot is in ruins, Celestia is an out-of-control god flying west, and it's up to Twilight Sparkle and her friends to save Equestria. But with the Great and Powerful Trixie playing a reckless wild card, do the girls have what it takes to set things right?

(Attention: Permanently Cancelled.)
*Warning this story and description contains massive Mass Effect 3 spoilers. Stop reading here if you care about that kind of thing.* For the record this is Male Paragon Shepard who uses Engineer as a class.

What if Specialist Traynor didn't pick up Kai Leng's signal as he left Thessia? Commander Shepard and the Normandy are scouring the Horsehead Nebulae for any trace of Cerberus. In an off limits system there is a strange planet that doesn't exist on Council records, but it appears to be emitting an unusual signal. Shepard brings the Normandy in to investigate.

Meanwhile, Celestia is trying to adapt to Luna's return. The younger sibling always had some radical ideas about how to manage the kingdom, and Celestia is finding it hard to hold her ground against Luna.

When Ruby boards the first trans-oceanic flight in Equestrian history, the last place she expects to end up is stranded in the middle of Eternity's Crossing in the wake of a horrific zeppelin crash. After a mysterious tower leads her and a fellow survivor to discover a twisted and fragmented city twenty thousand feet below the surface of the ocean, though, a bit of fire and smoke is the last thing she needs to worry about. Between the horrendously disfigured residents and the paranoia of the madmare who once built and controlled it, daily survival in this corrupted utopia is anything but a guarantee. But with the help of some new friends and a few genetic enhancements, Ruby isn't going down without a fight, and in the process might just discover that the deadliest weapon in Harmony is herself.

An adaptation of BioShock for the world of MLP. Written to be comprehensible to anyone, regardless of whether they've played the original game.

The Princesses find an alien creature barely clinging to life at the scene of a terrifying crash. Can the Combined Power of the Elements of Harmony save it, or more importantly, should they save it? Will the arrival of this strange creature tear Equestria apart?

TV Tropes
https://tvtropes.org/pmwiki/pmwiki.php/FanFic/Article2

Rarity's exploits in "Sweet and Elite" set in motion a chain of events that will find the unicorn dressmaker taking part in the greatest airship race in the world, the Alicorn's Cup. Excitement will give way to terror, as Rarity soon finds herself the victim of a plot against Equestria, and shipwrecked far from home with her least favorite stallion, the boorish Prince Blueblood. Rarity will learn of treachery in Canterlot and abroad, and will have search for something of substance beneath the prince's obnoxious veneer as she struggles to not only save herself, but her entire nation.

Part One of Three
The Adamant Triskelion - Book One: The Flight of the Alicorn
The Adamant Triskelion - Book Two: The Abyssal Forge
The Adamant Triskelion - Book Three: ???

A mysterious brown Earth pony with an hour glass Cutie Mark sneaks into Canterlot Castle, only to be caught by Princess Celestia herself. Curiously, Celestia is intrigued by the seemingly endless stream of nonsense this pony is wont to speak. Luna soon joins them, and the group heads into the very depths of the castle, where something has been lurking for far too long...

Author's Note: The story begins with Season 1 Luna, weakened and with very little magical power, as well as having 'flat' hair.

Doctor Whooves is also an Earth pony in this fanfic, as he has appeared as both a Pegasus and Earth pony in show.

Co-Authors: Bramble Rose, MudBug, Diomedes

A series of brutal murders seize the attention of the worlds greatest consulting detective.

Soon after meeting his eventual partner Jog Watson, Holmes must contend with the Butterfly Killer, a serial murderer who only kills when it rains and always leaves a dead butterfly with the victim.

The only suspects: a classroom of young ponies.

Be Awed and Amazed by the tale of Sweetie Belle as she traverses the multiverse in search of her lost mentor and friend, Twilight Sparkle! Will she find her in post-apocalyptic Equestria? Or maybe in a strange world where everypony is the wrong gender? Or even where a Pony claims to be a human? Read as she journeys through very familiar worlds you might have read about... if you dare!

At this point in time all the main worlds to be visited have already been chosen. Thank you all for the suggestions, and I hope you enjoy the surprises!

Here's the official TSC:F Music Intro: The Sweetie Chronicles: Fragments

WDTP: S2/3-CE
You can also visit the TV Tropes Page which has spoilers!

After reading a book by Spitfire's personal trainer, Rainbow Dash decides that the best way to get closer to her ultimate goal of joining the Wonderbolts is to add strength training to her practices by having one of her friends ride her. However, when she decides that Twilight Sparkle is just the mare for the job, the pegasus gets a bit more than she bargained for.

Artwork by Piggybank12. Used with permission. Thanks to DPV111 for assisting me with story planning.

The Medallion of Light and the Medallion of Shadow are some of the most powerful yet obscure artifacts of antiquity. Created by a now-vanished cult of assassins, the two devices together give their bearer the incredible power to walk the worlds with but a single step.

Nefarious forces are closing in on both artifacts, and very little stands in their way. Heinrich Himmler's agents covet the medallions for the greater glory of the Third Reich. Ahuizotl's simply want their master to get what's coming to him: the world, and everything in it.

With the fate of all good people and ponies in doubt, one thing's for certain: saving two worlds would be one hell of an adventure. And if adventure has a name, it must be Daring Do… or is that Indiana Jones?

Will our heroes win the day? Find out in... Daring Do and the Medallion of Shadow! Or, Indiana Jones and the Medallion of Light!

NOTE: there will be some violence in this story, but nothing more than you would expect to see in an Indiana Jones movie-- so I didn't check the "gore" content box.

Artwork by Tzelly-el.

Special thanks to SapphireStarlightPony & Rated Ponystar for helping with the brainstorming on this one.

Thanks to this stupid thing I've had the Indiana Jones theme song stuck in my head for like the past four days and I am about to claw my eyes out AAAAAAAHHHHH @_@