All Princess Celestia wanted was to open a window. A simple window into another world, for no reason other than to prove their existence. She never wanted it to become a door. And she certainly never wanted anything to come through. But, as is proven so often, we don't always get what we want.

It's not all bad. What comes through is a perfectly ordinary pony. So ordinary that its very presence risks the destruction of magic itself.

Ordinary, after all, is highly relative.

Spartans never die, they're just missing in action. This has never been more true for Jorge-052 as, after activating the slipspace drive that was supposed to kill him, he is instead flung into a strange world where war is but a distant memory. Will the aging soldier be able to adapt to this new peaceful planet? Or will his only salvation be found in finding a way back to his own chaotic universe?

(It's my first time, so be gentle)
Now featuring a TVTropes page by Sabo88

"Humans.... Quite possibly the most infuriating mythical creatures in existence. If you ever have the 'luck' to meet a Human in your travels across Equestria, then you must be careful. Humans are extremely powerful creatures, some would say more so than Celestia or Luna, they are also more unpredictable than Discord. They can help you in a tight spot if you're lucky, or play nasty tricks on you if you don't hold the Human's favor. In my time I've seen a Human give a filly pounds upon pounds of gold, and the same one turn greedy ponies into gold. The only one I ever have seen 'face-to-face' was in my earlier years, he helped me repair my wagon when it broke down in Everfree Forest, by fix I mean a whole new one appeared not ten feet away, and the only thing the Human asked for in return was a spindle.... But be warned, never anger a Human, a trick or two in fair game is fine, but if you ever manage to truly anger a Human...... you'll be part of the small number ever to meet non-existence." - Star-Swirl the Bearded.

A silly nonsensical story, not to be taken seriously. Some chapters are not connected to others.

A creature of old has been present in Equestria since the beginning of the rule of the alicorns, watching, waiting. He saw their fall and the sisters' rise to power. Now, for the first time in eons, he steps from watching and takes action.

The Cutie Mark Crusaders decide they need to expand their numbers, but things quickly go awry when their first target begins sobbing on the spot. Sweetie Belle soon finds herself roped into hanging out with the young colt.

Can Sweetie Belle see past the young colts weirdness and allow friendship to bloom? Can Button Mash fake enough normal behavior to make at least one friend? Will these two hit it off, or are Button’s only friends destined to be the ones in his video games, forever?

Cover art by users Vallis and Novel-Idea

You'd think that being trapped in stone would mean that, if nothing else, I could get some peace and quiet. Unfortunately, it seems that Celestia has other ideas.

She has appointed these ponies... these 'Keepers', as she calls them, to keep me entertained during my incarceration.

Honestly? I'd prefer the boredom.

Cover art by matrosha123
Spanish Translation by SPANIARD KIWI found here

A former pink pony finds herself in a new, hostile world and a new friend who's perhaps even more hostile. A small, angry man finds himself with a new friend he didn't want. Can they make it through this new misadventure together, or is it the universe that needs to watch out for them?

Cover art used with permission from Technaro.

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.