Equestria is growing, and magical savant Twilight Sparkle is disgusted by the crime and corruption this change has brought. Her life is changed forever when she discovers the Death Note, a notebook with inexplicable and deadly powers. She uses this book to pass judgement on those she deems unworthy of life, aiming to create a perfect world free of crime. But when the two Princesses put their best pony on the case, a mysterious detective known only as L, a psychological game of cat and mouse erupts between the two.
Comments contain spoilers. Artwork by blu-red, opening by Anon3mous. Now with its own TV Tropes page.

Why does he cry? Because he doesn't know what he is.
Is he an Angel? Never knowing a god's kiss.

How long has he lived? Ask him if you wish.
Will he answer though? He's as fragile as a dish.

Will you love him? Give him what he craves.
Will you hate him? Throw him into the flames.

Opening themes: Hello - Pol Rossignani (Evanescence Cover) - Part 1

I'm Alive - Shinedown - Part 2

Emperor's New Clothes - Nathan Sharp Cover - Part 3

Shadow is a genetically engineered xenomorph who lost everything. His hive was destroyed and he was tricked into going into trap that was to get him off the ship he stowed away on. He crash lands on an unknown world and sees an opportunity to finally live without the worry of WY. When he discovers a small cottage and discovers that there isn't a human living in it but a talking pony, his life flips upside down. These creatures treat him nicer than the humans and he vows to not let WY step foot on this planet. He will start his own hive and hope to find a way to have his species strive once more. Will he succeed or will he be captured and experimented on?

Princess Celestia was going for an incognito stroll through the town in order to unwind from court, that was until she came across a small oddity of a shop called 'Cliff's Craft' on Elder Street.

So, she decided to pay Equestria's only resident human a visit.

[E] Means it has been professionally edited.

Mild violence, swearing and sexual themes.

Please note: In this story ponies (and others) are similar (anthropomorphic) to humans. Though ponies (for example) are generally shorter, have fur, magic, cutie/destiny marks, and the extra appendages like wings or horns.

Also shout outs to:
PurpleFloof for editting!
Dekaskittalz for proof reading!
Vongoalyken for the advice!

Hallo! Sorry I'm late. But then, it seems... so are you, Rainbow Dash.

And so the late Rainbow Dash comes face to face with Death himself! And he's... surprisingly cordial, actually.

But when Rainbow ends up in his debt, there's only one way to get back to the life she knew: take up the role of the Grim Reaper herself while Death takes a little holiday. Will Dashie be able to stay quick among the dead? Will she be the most awesome reaper ever... or will Death have to cut his vacation - and Rainbow's life - tragically short?

(Apologies and honors to the late Sir Terry Pratchett.)
Editors: Reese, GenerousGhibli, E3gner
Illustrations: Greenfinger

Based in RuinQueenofOblivion's adapted and expanded universe for Fallout: Equestria, as created and written by Kkat.

212 years after the bombs fell and the world of Equestria was plunged into in darkness, A synthetic replica of a pre-war pony leaves her home bunker and loving father and robotic mother behind in search of the fate of her namesake and all that remains of her lineage.

However, she soon discovers that her journey may not be as simple as perceived, and she must rely on her new found friends, for both survival and to ensure her mission is a success. What mysteries will she uncover? What stories will she piece together? Only time will tell what the future holds for her in this strange world.

Cover Art by Aurora Fang

Pandinus Imperator (You can call him Pan, he won't mind) is knocked back in time during the Canterlot Invasion, and accidentally kills King Sombra on arrival. Instead of being executed, the changeling is surprised to find himself being hailed as a hero, and is promptly put on the throne as the new monarch, the Crystal Emperor. However, Pan now faces a great many problems, among them Celestia and Luna, who seem certain that the changeling is secretly up to no good, as well as several political factions secretly plotting to undermine his reign. There's also the tiny problem of the constant snowstorm that threatens to cut the city off from the outside world permanently.
The Crystal Ponies need a hero now more than ever before. Why did they get a changeling instead?

We Has A TvTropes.

While not truly a part of Bucking Nonsense's Changeling-Verse, the same rules regarding changeling abilities and society apply.

Cover image provided by gabapple, used with permission.