(Under spelling repair.)
(The image was done by Silver Tongue. CURSE YOUR DRAWING TALENTS!)
(Their theme, while in action, is this)

Celestia summons Twilight for a simple magic test, and Twilight's friends decided to follow to cheer her up from her nervousness. The test's entry was perfect, and a lovely tea break with the princesses to relax a bit and talk was going perfectly...until a strange biped wearing a science outfit appears in the throne room. They were finally in Equestria, but who exactly are they? What are these awful creatures that they are using to kidnap "test subjects" for their experiments, and what is this creature that seems to be a mixture of Nightmare Moon and...something else? When the only safehaven for the inhabitants of Equestria becomes the Island of Secantor, a place where technology is legion and magic is both frowned upon and punished, and, worst of all, is actually an enemy of Equestria, things begin to tense up. And who is this "Doctor" who seems to be the lead scientist in this horror scenario? Does he lead or is he lead? What is he? He and the others seem extremely different from the chained bipeds, but in what manner? Aren't they the same creatures...or are they?

Two worlds are now connected. Two of bizarreties. What are these other bipeds that are thrown into Equestria as well as time goes on? What is there to expect with these chained up creatures?

"Where technology holds a candle, magic shan't prevail."

They have become increasingly active, and their experiments are...better. Why not join the good Doctor and see his amusement through his depraved, unknown eyes? Pierce with the sharpness of a scalpel and discover how simple and malleable dna truly is, and listen to ramblings coming from colleagues and guards. Technology and time is of the essence. Will the good doctor manage to create it?

(Related to "Not always alone")

They look through dimensions and see the best creatures they can find. They take their own kind and experiment with their dna in brutal and blood curdling ways.They have found Equestria and have extracted dna from two of the most powerful beings there. Mixing and splicing with their own kind. So many in the pit of darkness. So many in the cold. So many sleeping in piles of rusted blood. So many the same. The same faces. The same colors. The same shapes. The same similarities. Never the same despite these. What do you do when everything you had was taken away from you, and everything you have left is stripped from your corpse? Perhaps the dreams of subject E1058 aren't entirely dreams?

(Inspired by Foal Necromancer. I do not forget or deny when I am inspired by something)(Human tag is for the first chapter)

I am Adone Federo. I am a mafia don in the city of Los Angeles. I was once the most powerful man there, but...fate decided otherwise for me. I do not mind. I was enforced this duty after my father was imprisoned. Having to take on so many things at once is not an easy task, especially when you must uphold your home country's customs when you never lived there, and keep your family name implanted within the foundations of fear. I only hope that my cold body means that I will finally be able to rest like I have always wanted: with the fishes in the calm sea...or is there something else that I might see?

(Picture done by WakerofWinds)

(Image is Mechanical Knight by Guangjian Huang.)

What do you do when you're the last of your species? What do you do when your entire homeworld has been completely obliterated from the star charts? What happens when your deactivated, cold husk breaks into the atmosphere of a new world after erring for hundreds of years? This is how a being of technological wonder finds itself roaming Equestria with a teeny tiny black creature and a deposed king in tow, discovering both ancient secrets of this world and, perhaps, getting a few souvenirs from the sky. Will it find its new purpose?

Soluna is an alicorn who has stayed dormant as her daughters created Equestria. She knows everything and has made everything as it is. Her beauty surpasses anything that shall ever be created. She can even defeat the Nothing! She'll be going to Ponyville in hopes that-*bzzzt*

What the hell is this? What's with all those contradicting tags? WHAT'S GOING ON HERE?!

I think we found another.

Time. For termination.

The old chapters won't have anything rewritten since that's how the owners of the characters wrote them, and I don't want to touch those.

I'm The Psychopath, and I'm here to interview everypony so YOU can learn more about them. If you want to try your hoof at it, check here for information. Everything will take place in the World of Illogic!

And sometimes, if you're unlucky, The Sociopath will interrogate you instead, and you'll be in the World of Insanity. Let's hope that doesn't happen.

(One-shot)

Ol' Ponyville seems to be doing alright, especially with the typical day going on. The whole town is even helped out by a very young man who seemed to have always been there. He even seems to be in great terms with everypony there, but where did he come from? Why is everything so...out of place? Is there something hidden behind the sky that could terminate everything in one command, or is there something much deeper to the man than he let's on. The only way to know is to meet and see the end, but are you prepared for it?

(Set in Psycho's Equestria)
This is a side-story to The true Psychopath. The image was made by HooveslikeJagger. The "other" tag is for the OCs from other people.
You can find the characters that are "cameos" here. I won't say which ones are which, so you'll have to look here. That, or the original creators can say it themselves in the comments.

The Psychopath returns once more with a certain mare with equally swirling eyes to cause Illogic and unfortunate destruction. However, this time, the Disirvians have brought in somepony that he knows. A very sinister pony from his past with similar powers. Only, this dark one is probably one of the most violent creatures out there, and probably, just probably, when both the World of Illogic and the World of Insanity encounter, something will be unleashed to leach off the results and make some unexpected allies.

However, what exactly IS the reason for these shady characters at the tough, unforgiving Disirvian mountains, to go so far out of their way to capture Psycho? What purpose is there? Perhaps Pandora will be able to shed some light on this mystery.

This world is connected to :
Destitute: a nightmare of the Nothing
The true Psychopath, and pretty much every story starting with "The true Psychopath"

The Psychopath exists in Equestria, however strange it may be to others. He can also reach other versions thanks to the World of Illogic, but even he has to use a map to get around his Equestria. Here, he'll tell all about this Equestria and the lands that exist beyond it, and the territories within it. He'll speak about the Jarred breach in the forbidden zone of the Seaponuvian ocean. He'll speak all about the strange new land, the Nyubet, in which lives a terrifying creature that none can trace the origins. He'll even talk about the city of Dissirva within the Dissirvian mountains, and its proximity to the borders of Equestria, as well as their relationship with the griffin kingdom.

If you're lucky, he might even tell you about a secret continent which has been affected by the energies of the Nothing, and what lives there.