Answer:
I can be cracked, I can be made. I can be told, I can be played.
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
It's a game played by serious people that takes place on a global scale.
A skin have I, more eyes than one. I can be very nice when I am done.
Thousands lay up gold within this house. But no man made it. Spears past counting guard this house, but no man wards it.
Dark, feathery, and popular in Baltimore and fantasy books.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?