After first contact with true aliens goes disastrously wrong, Equestria's chosen explorer has very little time. She must discover a way to communicate with this new alien race, before her discovery can be turned into a smoking crater.
After decades of preparation, an ancient cult finally manages to summon two of their dark gods into Equestria. Instead of almighty Alicorns, they arrive as a pair of helpless fillies. To get home, they'll have to play the part...
A group of clandestine explorers stumble into Equestria, emerging from the portal in strange new bodies. Riches and fame await them, if only they can find a safe way home before the magic becomes permanent. It's not as easy as it sounds.
Luna discovers a vast and ancient being approaching Equus. When she and Celestia go to meet it, they see into the early dawn and eternal twilight of their universe.
The only thing that can beat an AI is another AI. Unfortunately for Celestia, she isn't the only one the humans made and the others don't want ponies. Of course, if Celestia has her way that won't be the case for very long.
Humanity's space exploration ultimately took the form of billions of identical probes, capable of building anything (including astronauts themselves) upon arrival at their destinations. One lands in Equestria. Things go downhill from there.
A student computer researcher discovers Equestria Online, and she can't understand why nobody else is worried about it. Without any help, Ashley decides she will do the impossible on her own. Somehow, she will save the world.
Ranma Saotome has been brought to the fanciful land of Equestria, and finds himself surrounded by its majesty and wonder. He is not happy about this. Equestria isn't very happy about it, either.
One day, something terrible and unexpected happens to Celestia, and time is lost to the sands. She'll find that her entire world is gone and that almost everything she knew and loved has disappeared...forever.
When Twilight Sparkle went to bed, she had friends she loved and a life she enjoyed. But she awoke to hospital gowns and padded restraints. And the doctors, they keep telling her that she is sick and none of it was real. They’re lying, right?
No humans. In Equestria's past, ponies exist only to serve their creators. One such pony is accidentally released from her mental chains, but how can one mare save herself and her people if she doesn't even know she's a slave?
After the events of Project: Sunflower, Erin returns to Ponyville to study magic. Meanwhile, something is stirring on the newly-discovered world of Harmony.
Twilight's convinced Discord hasn't really reformed, and has found a weapon to replace the Elements -- a reforming spell Discord missed eating. But a cornered draconequus is a dangerous beast...
Twilight could possibly have forgiven the thief for stealing books from the library. But when she finds food stains all over a few the thief returned... oh, now it is on.
Lyra thinks Discord is an idiot for not thinking to dodge when the Elements of Harmony were about to strike him. Discord thinks this is the perfect opportunity for a game.
A seemingly invincible pony falls in love with a displaced, unstable, solider who is far from receptive to her advances. Oh, and she's red and black, too.
Sweetie Belle trys to return to normal life, but after everything she's been through, will she want to? Meanwhile, Lyra aims to get to the bottom of these "precursors" one way or another. Book II of III
One moment I was enjoying life, the next... well, I'm not so sure, though I was hearing voices. Now, however? I'm the last survivor of my race. I'm not even human anymore...
MLP/Warhammer 40K crossover, part 5. The pieces are placed. The battle lines have been drawn. The 38th Company and Equestria fight relentlessly against the alien menace (the other one, that is), but the odds are hardly in their favor.
MLP/Warhammer 40K crossover, part 4. The Tau have left, but now a new threat threatens to overrun Equestria and its home planet. This time, though, hope lay with the darker powers...
Chrysalis has been driven out of Canterlot, her invasion defeated. However, an old friend from her time before coming Queen is more than happy to help her succeed with her plans.
The changeling hives have always warred with each other to cull the weak. With Twilight Sparkle's announcement still echoing with the other hives, it is time once again to separate the chaff from the wheat.
After the royal wedding, a new changeling hive makes its presence known and wishs to open diplomatic relations. Twilight decides to use this opprotunity to learn more about them, but ends up getting far more than she bargined for.
MLP/Warhammer 40K crossover, part 2. Twilight is charged with driving the Iron Warriors from Equestria and their world. But the Tau aren't out of the fight yet.
MLP/Warhammer 40K crossover, part 3. As relations between Equestria and 38th Company wax and wane, the Tau warriors of the Sept Lamman put the final phase of their plan into action.
MLP/Warhammer 40K crossover. Chaos Space Marines from the piratical 38th Company have engaged Tau forces around a planet rich with alien life, magic, and... friendship? I guess? Weird.