You may only purchase two cats per day.

In the beginning, there was nothing. And then suddenly two weeks later we had a whole bunch of ponies. Putting aside the exact logic behind that happening, we now go live to watch the denizens in this dense white void. After all, we only have ponies. It's not like we gave them houses, or resources, or even a planet...
Wait, that means they have no air. Great. Just great. We have to start over, and go two more weeks without a story because of this.

Two weeks pass, and god-narrator is currently bouncing a makeshift planet on a table-tennis paddle.

Okay, planet? Check. Water? Check. Food source? Check. Light? Check. Okay, we're ready to go now. Finally.

In the beginning, I screwed up and created a bunch of dead ponies in a white void. This has been corrected. In this new beginning, they're starting out with a planet, some water, and a limitless food source as they live in a constant ambient glow that doesn't seem to come from anywhere. Let's see how well they're faring now.

God-narrator looks over to the planet, now suspended, with a dozen pony corpses floating away from it, along with all of the food and water, as it slowly falls apart.

Right...
Two more weeks, this time add air and gravity.

Seven hundred attempts later, god-narrator finally manages to get it right.

Actually, seven hundred forty-three.

Meanwhile, on the planet, some of the ponies are just now waking up.

"W-what is this place...?" Fluttershy asks no one in particular, confused, and a little scared.

Hi.

Fluttershy, in response, immediately runs and hides behind the nearest tree.

Oh, whoa. Not the reaction I was hoping for at all.

Fluttershy continues hiding, shivering, hoping she isn't found.

Anyway, welcome to this planet, welcome to my universe. There's nothing to be afraid of, because you and the others are actually the highest in the food chain.

"Others?!"

Yeah, you're one of three ponies I decided to bring here to test this planet out. Good thing it worked, too, otherwise all of the people reading this would be really mad at me. Anyway, I'm... well, my name doesn't matter. I suggest you build a shelter before nightfall, because the monsters get pretty hostile.

"I thought you said there wasn't anything to be afraid of!" Fluttershy yells, cowering.

Nah, I'm just kidding. There is no nightfall. Don't want to have to bother with keeping up with time here. Anyway, build a shelter. Kind of want to see what you're capable of.