Darth Vader is one of the most despicable forces in the galaxy. Once a powerful and respected Jedi Knight, he betrayed the Galactic Republic and Jedi Order for the dark side of the Force. The newly christened Sith Lord was apprenticed to Darth Sidious and quickly became a master of the dark side. Vader was soon the scourge of the Jedi, continuing the Great Jedi Purge by slaughtering all remaining Jedi.

An extension of Emperor Palpatine's will, the Dark Lord was constantly on the move, traveling throughout the galaxy to defeat rebel uprisings and kill any surviving Jedi. This mission brings him to the edge of the Outer Rim into the Unknown Region of the galaxy, in an unknown star system. High above an unnamed planet he duels with one of the last remaining Jedi in the galaxy in a starship battle. But during the battle his ship is damaged, and he crash-lands on the mysterious planet.

With his connections to the Galactic Empire severed, Vader must find a way out the land known as Equestria, inhabited by the strange creatures known as ponies. That, or he could take it over.

He was always considered an outcast, a black sheep. When his peers find his secret, that he likes to watch My Little Pony, they taunt and ridicule him for it. But, after a freak accident, he is taken away to the land of Equestria. Has he truly found his place? Oh, and he's an ork. That might be an important little detail. Warhammer 40k crossover.

[Wrote this before DS3, ending is probably not canon, but I had to modify the canon to integrate ponies into the storyline]
It is 2508. The USM Valor is armed and authorized to "rescue" USG Ishimura from the grasp of the Marker. Numerous cases of dementia start to appear in the crew members of the Valor along the journey to the Aegis system, especially in the Marine veterans onboard who have survived the horrors of the Resource Wars and colonial insurrections.

Meanwhile, across the universe, the Royal Sisters of Equestria funded a project to seek other sentient beings in the universe that have been directed along a path of havoc and destruction by Discord. Pinkie Pie, one of the "early-detection" staff, is accidentally transported onto the USM Valor around the time the destroyer's crew begins to experience its final moments, as they find something extremely foreign in one of Ishimura's escape pods....

One of the military personnel that had been deemed a Section 8 onboard the Valor soon narrowly escapes his demise, and, skating on the thin ice of his already broken sanity, meets the aformentioned pink pony in the blood-drenched decks of the crippled Valor.

To join is to survive, and in pieces we scatter.

BTW, it's a non-Isaac Clarke perspective

*REWRITTEN*

Eager to vindicate herself about her steadfast belief in the fabled existence of humans, Lyra turns to a "special interests" firm to acquire a prime specimen of the legendary bipeds. Or two. Or three. Or four. Or a dozen. Or a thousand...

FEAR crossover

The Death Korps of Krieg, seeking atonement from their government's betrayal decades ago, they give their lives willingly in the everlasting fight against the enemies of the Imperium of Man. Averted by even their fellow Guard regiments, they show a high degree of fatalism and an unusual morbidity of habit. Yet they are highly disciplined, morally reliable and self-sufficient soldiers.

The 42nd Siege Regiment had been deployed on Kheltan III to reclaim a supply route that had been attacked by the Eldar. A simple enough task for the stoic men of Krieg. But an ion storm attack and an innocent experiment by an alicorn from another world can make even the easiest of tasks much more difficult.

A Warhammer 40K/MLP:FIM crossover

The year is 1943, Germany has so far lost all three key battle to turn the tide of the war into their favor. They know that they are losing and are desperately looking for a solution for the situation. When a German scientist say that he has a solution, Berlin is all ears. The solution, a peaceful country in another world. Its time for the iron eagle to strike down on its new prey and bring the war with it.

(Authors note: I am not a Nazi or anything like that just so you know. I have just always been a fan to alternative timeline stories and I am also a huge fan when it comes to World War 2 fiction as well so I deiced to write my own story about it for a change. And what better way is there then inserting ponies into the mix.

The Canterlot Caverns are a strange and enigmatic place, untouched and forgotten by pony-kind for centuries. So when a strange metal object is unearthed in their depths, it's up to Twilight Sparkle and Lyra Heartstrings to discover the many secrets it holds.

Together, the two of them will have to do their best to understand the remnants of an ancient civilization, and decipher what remains of Those Who Came Before.

The cover-image is a cleverly edited stock image, which was modified by the stupendous Corvo.
Proofreading was performed by the equally fantastical writers:
Timetraveling Pony (Who started as a proofreader when Cloud was writing this. Hats off to him for being dedicated and staying on as a proofreader for me.)
DustyPwny
Tidal
Superluminous
Night Spark
PhiliChez

And a special Thank You goes to The Sentient Cloud for allowing me the honor of continuing this great story after he retired from writing fimfictions.

As it turns out, this story is eerily similar to Lyra Heartstrings and the Hand of Man. Due to their similarity, I feel that it would be appropriate to give said story a mention.

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

Have you ever woken up somewhere you don't recognize? I have, once before. This time was not all that different. Headache? Check. Dry mouth? Check. Upset stomach? Check. Hooves? Uhm, that one is new.

Hi, I'm Bruce and I'm 32. Currently, I'm in a light blue Earth Pony foal's body no one has ever seen before. The rest of Equestria thinks I'm 9 and something really traumatic happened to me. It doesn't help I swear like a sailor and I could really go for a smoke right about now. I just hope that the Everfree Forest, rampaging monstrosities, evil dark abominations against God and the Cutie Mark Crusaders don't kill me before I have just one last drag.

Oh, and ponies are hella creepy when you really think about it. Geez.

A little comedy side project. EDIT: HAHA Main project. More characters to be added if I get that far. Categories might be refined as I write. Entire thing is unplanned except vaguely. Don't Expect excessive cursing to be written out, just hinted at. Oh, and as the character is a 30-ish year old in the body of a 9 year old, sexual jokes might exists but sex itself will not occur.

Special thanks to user Momomojito for the awesome-tastic picture! First fanart, I'm so HAPPY. I've gotten more since then! I should collect it all here. Collected!

Humans. We are a naturally warlike race. Ever since we first picked up a stick our race developed better weapons of war. But now with WW3 bearing down upon us our leaders wonder... who will remember us? When we destroy ourselves in the fires of war what creature will remember our achievements, our legacy? Project Ascension is our solution. To preserve one of us with the knowledge of who we are. But what will discover our history? And what will they do with it?

Special Thanks to Jayfeather97 for editing and being a general grammar Nazi on my work, helping me to clean it up.