I really have no idea how to answer this question. It seems to me that just about anything even slightly geeky would fall under the purview of the typical gamer, and considering how diverse gaming culture really is, I would imagine that any hobby could be a gamer's hobby. I guess I will list some of my hobbies and accomplishments, and you can make of that what you will.
I was a Regional Grand Champion obstacle driver in the American Miniature Horse Association.
I still enjoy many equestrian activities, and own 8 horses of various types.
I have studied various martial arts for nearly 20 years (on and off, probably closer to 12 years continuous).
I enjoy cooking, and typically not in the general making dinner kind of way. Usually when I cook it turns into some kind of special meal or occasion.
I enjoy Jazz clubs.
I enjoy fight night at O'Malley's Pub.
I own my own business and have a B.S. in Entrepreneurship.
I could probably go on, but those activities are what I would consider my hobbies/accomplishments that people wouldn't associate with gaming.
I was a Regional Grand Champion obstacle driver in the American Miniature Horse Association.
I still enjoy many equestrian activities, and own 8 horses of various types.
I have studied various martial arts for nearly 20 years (on and off, probably closer to 12 years continuous).
I enjoy cooking, and typically not in the general making dinner kind of way. Usually when I cook it turns into some kind of special meal or occasion.
I enjoy Jazz clubs.
I enjoy fight night at O'Malley's Pub.
I own my own business and have a B.S. in Entrepreneurship.
I could probably go on, but those activities are what I would consider my hobbies/accomplishments that people wouldn't associate with gaming.