Semi- and megabeasts don't really do all they should. Aside from randomly killing people and maybe stealing morsels of food or trinkets smaller than the tips of their toes, they don't do anything. Where are rocs raiding herds of cattle, dragons demanding tribute, hydras lurking in sewers, bronze colossi...okay, they're probably fine the way they are.
The biggest problem with a "society" of semimegabeasts is numbers. There's a couple dozen per
world, scattered over race and continent. If more than three or four minotaurs came together, that would be surprising. However, I could easily see them taking over groups of lesser peoples, especially minotaurs. (Minotaurs always struck me as being cunning, regardless of their intelligence. Their inspiration lived in a labyrinth and managed to avoid getting lost as he hunted several Athenian teenagers. As in, people from the city named after the Goddess of Wisdom.) At that point, in larger worlds, some minotaurs might hear of each other and meet up. Imagine a minotaur heading a goblin nation and one reigning over a dwarven kingdom uniting their holdings...
Cyclopes, ettins, and giants could do roughly the same things, of course. I imagine they'd mostly be a bit less effective, though. Cyclopes might be craftsmen more than leaders; ettins would probably argue with themselves, leading to the amusing case of factions following each of the ettin's heads; and giants would be hungry and dumb. (They're big enough to squash minotaurs and easily wrestle the other semimegabeasts to death and are bigger than
hydras. They could use a nerf to make them
semimegabeasts.)
Ninja'd, of course.
is there anything saying Minotaur's are sociable? Maybe they are not, in just why they are in the maze?
The original Minotaur was one-of-a-kind and imprisoned there. DF minotaurs? Who knows. Maybe they like living in mazes.
Why would Minotaur's want to live with other Minotaur?
Why do humans want to live with other humans? Oh, and the apostrophe is for possessive nouns and contractions only.
Why assumed Minotaurs like wearing amour? Maybe they believe its for the weak races and they dont need it?
They're supposed to be armed and armored to make up for the fact that they're just over 1/40th the size of the other semimegabeasts. Also, they're smarter than said other beasts. Minotaurs aren't realy the
"Honor Before Reason" type the way I see them. They're smart enough to realize that horns and size don't mean much against solid steel.
I'll give you the vampire thing, how ever that's ONLY if he decides to make vampires "mindless beast" (in terms of needing blood) or civilized people. Both work, but you need to pick one and stick to it, or divide them in a way that is clear. I.E this one blood line is the "feral" ones, more stronger, but cant control and the other is more civilized.
Why? Why can't there be a middle ground?