A Metroid Crossover

A meteor, resistant to magical manipulation, crashes in Equestria, Planet Equis, and soon spreads an unknown poison throughout the land. Containment is all but failing and the Princesses have little power to stop the spread of the Great Poison. The Elements of Harmony are of little use as no knowledge exists of this threat that consumes all life. Help comes from a certain Hunter, clad in metal.

Samus Aran will not only fight for her life as always, but her own sanity as well as these ponies that she begrudgingly starts seeing as allies. New horrors and abilities await her as a reason to fight slowly festers within her, possibly unlocking something she had been denied for so long: Friendship.

Notes and Resources:

This takes place after Echoes. The events of Corruption will have not happened yet. In terms of MLP, consider everything up to and including the Crystal Empire. Princess Twilight does not exist here, etc. The official Metroid Timeline can be found here.

As well, this story references the manga in many places. Reading of it is not required and I try my best to explain the context, but if you're interested, both volumes can be found here.

EDIT: This story was written over two and a half years, beginning in 2013. You'll probably notice the difference in writing as the chapters progress.

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.

On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?

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!

Every scholar wants to discover a new fact, something true and constant that changes the way they see the world. For Twilight, that discovery might come from a place she never expected. . .

(Proofread by DbzOrDie, who's patient enough to be my friend even when I forgot to credit him at first.)

Scootaloo grew up at an orphanage ran by Gerda. The old hag had clipped Scootaloo's wings last time she tried to escape. Now, under cover of darkness years later, she has finally escaped and boarded a train to Ponyville. Will she stop running from her past long enough to enjoy her new life?

A slice of life story that will follow Scootaloo from orphan to daredevil, from the Cutie Mark Crusaders to Dash teaching her to fly, and beyond!

This story is lightly self-edited and I'm aiming for a pace of a short chapter a day. It keeps me busy while my editors work on my other, more "serious" stories

Warning: This story contains way too many cheesy pop culture references, and horrible title puns. They're my guilty pleasure.

Applejack's got a secret she'd kept hidden for many years. Nopony would ever have guessed what she and Twilight were up to in the library late at night, once Spike had gone to sleep. That is, until a jealous Rainbow Dash decided it was her business to find out just what in the hay was going on.

[Eventually will be rebooted in a new story]

Rated [Teen] for F. Violence & Strong Language.

It's been ten years since she's been crowned princess, and during that time she's been rather... busy. Among moments of solving friendship problems and saving Equestria multiple times, she has destroyed the covenant, saved the Mushroom Kingdom and its princess, destroyed all the colossi in the Forbidden Land by the order of a sealed god, escaped Black Mesa, and many more heroic deeds. Yes, Twilight Sparkle can call herself a video game master of many genres. However, she never once touched the aspects of virtual reality MMO’s. That is until she started playing Equestrian Earth. With a whole digital world before her, Twilight felt that her adventures in the MMO would be her greatest adventure yet.
However, this adventure may prove to be the most dangerous as a powerful entity and its legion of hackers have taken over the world. Twilight Sparkle must unite with her fellow gamer friends if she is to prevent herself from getting a game over not just in the virtual world, but the real world. Adventure awaits in a land filled with monsters, allies, quests, rivals, imagination, friendship, and magic.

This is Equestrian Earth, let the games begin.

Story Description Credits to Rated Ponystar [an immense help!]
↓If you haven't, read Author Notes down below↓

Author Notes:
Ω Editors: ugugg93
∞ Edited chapters will be marked by a certain number of *s, indicating how many editors got to it
Ω Proof/Pre-readers: RemareShadows and Apuppy120, ultra1437, Genghis, and Willow the Pegasus
Ω A World Map of Equestrian Earth (and Equestria)
∞ (Password is mlp.)
Ω Also as a side note: I came up with the idea in the shower.
------------------------
Past Cover Arts
------------------------
1st Cover Art: The Great Six by Boxanor
2nd Cover Art: My Little Skyrim by Atrixy
3rd Cover Art: The Bannermares (and dragon) by latecustomer
Official Equestrian Earth Cover Art #1 [Landscape] by Midnight Sonare
Current Cover Art:
Official Equestrian Earth Cover Art #2 [Portrait] by Midnight Sonare

Fic's Group
Equestrian Earth Hubnet

Reviews
Ω SLthethird's review

Scootaloo, tough Scootaloo...she's been through more than imaginable, but when a caring mare discovers that she's an orphan, what events could lead to Scootaloo meeting her dreams? How could she go from so little to so much family, housing, talent, and love?

When the filly's life goes through the rollercoaster of romance, the river of remorse, and the clouds of destiny, how will she react? Will she be able to handle it all, or will she give out along the way?

SPOILERS IN THE COMMENTS, READ AT YOUR OWN RISK!

This story is a sequel to Scion of Chaos

After returning to Ponyville from Canterlot, Sweetie Belle tries her best to find her place amongst friends and family and to remember what it feels like to be home.

This story takes place 4 days after the finale of Scion of Chaos. (I recommend reading that first, if you haven't already)
And set 5 years later is the sequel story: A Heart of Change

Thanks to Rameslack for his amazing cover art.