I've played 1 and Infinite, but it wasnt until a few days ago that I started 2. Definately one of my favorite horror series next to Dead Space. I think discovering the lore through the enviornment is why I love it so much.

The gunplay is average in the first game, and I think the sequel improved on it by allowing simultanious plasmids with the firearms.

I remember going onto 'There's Something in the Sea' everyday back when that site was still updating, and now that I'm actually playing Bioshock 2, I can finaly find out what really happened to Mark Meltzer.

It's like I followed the development of these games since their first teasers were released, but I never actually played them until years later.