For millennia, a mysterious figure of terrifying power has persisted across the plains of hell, bringing with him death and distruction. A beacon of good, of light, and of cold revenge. He is known by many names across the cosmos, the destroyer, the slayer, The doom marine. His original name has long since been forgotten, he is known to most simply as the Doomslayer. He once saved the earth from the demonic clutches of hell, this mysterious being now finds himself on a very different version of earth, with its own invaders...

(A Doom Eternal/ Conversion bureau crossover)

Lucifer is bored, so he makes a deal with God. If Lucifer wins he gets to enact World War 3. If God wins then Lucifer has to stop torturing the damned (his favorite thing to do in his free time) for a century. To make sure he wins God gives the protagonist two powers:
The Gamer and Prototype.

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This story is a sequel to The Symbiote

Warning: The following description may contain spoilers for The Symbiote! If you have not yet read that and do not wish to be spoiled, please go no further.

After the events of The Symbiote, Twilight is no longer the only pony in Equestria to be host to one of the alien symbiotes captured by the Life Aura Center. Most of her friends have also agreed to host the aliens, understanding that they are unable to survive on their planet alone. This is a compilation of everyone's experiences with their respective partners! Chapters probably won't necessarily be in chronological order but I will include references to how long it's been since everyone became bonded. Most of these will take place shortly after The Symbiote and through the beginning parts of The Parasite.

Note, symbiotes will likely not have the exact same personalities and abilities as their Marvel comics counterparts! I draw largely from Sony's Venom movie along with information researched from the Marvel wiki, but otherwise my interpretations of the characters are my own. That being said I am more than happy to hear about what YOU like about each of these symbiotes and I may incorporate what I learn into future chapters. Oh and Rainbow and Pinkie's symbiotes, Slasher and Hysteria respectively, are my own OCs.

I will update with warnings and tags as I write. The rating on this may go up as well. We'll see.

Spike/Lasher - A Game of O&O contains mild fantasy violence and swearing.
Applejack/Phage - Healing and Repairs contains some swearing. No other warnings.

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The Life Aura Center is one of Equestria's top medical research centers, the producer of spells and medicines that have cured many once-fatal illnesses, and they continue to produce quality technology and cures. No one wants to think that they're doing anything unethical, but Celestia has her suspicions, so she sends Twilight to investigate.

One symbiotic pairing with an alien later, Twilight realizes Celestia was right to be suspicious. Now, working together with the strange creature inhabiting her body, Twilight will have to expose the center's shocking truth. And not get killed in the process. It's gonna be a wild ride.

Now with an audio reading by Mr. Snarky on YouTube! Please give him your support!
Part 1 Chapters 1-4
Part 2 Chapters 5-12
Part 3 Chapters 13-19
Part 4 Chapters 20-25

I also have a Discord! Rather quiet right now but feel free to join if you wanna talk fics or just ponies in general! Ask me for the link if you want in, I had to remove it because of too many spam bots.

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This story is a sequel to Guardian

Twilight's power, along with that of Celestia, Luna, and Cadance, has been claimed by Tirek. Drunk on power, the demon-centaur is unleashing destruction upon Equestria, his reign of terror just beginning.

But there is hope. A crystalline chest, a gift from the Tree of Harmony, able to be opened by six keys. Keys which Twilight has now claimed the last of. All they can do is hope, hope that whatever is contained inside the chest is enough to stop Tirek.

And then something goes wrong ...

Note: This story is in no way connected with my other fanfics. It's very much a one-off in good fun.

This story is a sequel to Guardian

(This story is a Novella taking place in the Guardian story universe. This story continues with the sequel Legion.)

Tempest Shadow had heard the rumors. Stories, told in frightened whispers by traders and wanderers, in the taverns and around campfires. The stories told of an almighty champion, a monstrous creature from far beyond the stars, that had come to defend Equestria from its enemies. The stories told it had slain dragons by the hundreds, broke the savage beasts of the Everfree like twigs beneath its boots, and torn down titans and monsters alike with its wrath. They said it wielded weapons that could turn mountains into gravel, and seas into desert. That it was clad in armor, that neither the sharpest blades, nor the mightiest magics, could pierce. The rumors said it was unstoppable, relentless, beyond the power of mare or beast to oppose, that it was. . . a god. Tempest had laughed at the rumors and stories, as she flew toward Equestria at the head of an armada, intent on the conquest of her weakling former homeland. Never once did she give the obviously absurd campfire tales even the slightest credence.

He had done it. The giant demon that had masterminded the invasion of Earth was dead, and Hell was in shambles. All that was left was to backtrack through Hell and go home to help rebuild the ruined planet...
But of course, it's never that easy. Just one wrong turn, and he arrives from Hell itself into a land filled with pastel-colored ponies. How will the man who had just destroyed Hell adjust to the sudden peacefulness after all he had been through? And is Hell really destroyed for good?

Alex Mercer had just killed Heller and got himself to start a family (sort of). All that goes down the drain when Blackwatch makes another retarded scheme to get rid of him and his new daughter, Aria Mercer. Surprisingly, it works. But instead of tearing him and his daughter up in a black hole, it sends them to Equestria. How will Alex deal with the ponies AND his daughter, fangirling all the damn time?