Most Surprising Game:
I'm not sure how to answer this, to be honest. Surprising good? Surprising bad? Surprising product? Surprising session?
I mean, I was pleased to see D&D 5e move away from the tactical tabletop game approach of 4e, but it wasn't much of a surprise to someone who actually pays attention to the "industry."
I was surprised in a bad way when my "Young Justice" DC Adventures game at Chupacabracon didn't make. Folks don't know what they missed with that one.
Actually, I think I've figured it out.
Revelations of Mars, for Hollow Earth Expedition. I'm not surprised that it's gorgeous - I've come to expect that from the product line. I'm not surprised that it's chock-full of cool ideas - I've come to expect that from them as well.
I was surprised when it turned up in my mailbox. I backed the Kickstarter and promptly forgot at what level I'd backed it. When the PDF arrived, I thought "Oh, cool." A few weeks later, this gorgeous book turned up in the mail and I had a moment of, "Did I order this?"