Meet Adam Richey, a Bio-Engineer employed by the military, his job is to make sapient creatures to bolster the defense on the planet of New Eden. During an invasion by the Juraxi Imperium, he gets killed and gets transported to Equestria 5 years after the Fall. When he wakes, he notices a MLCU (Mobile Life Creation Unit) came with him to this strange place.

I got the idea for this when playing some Stellaris with a friend and using a mod that allows the player to make a sapient species.