One of the most exciting trends in the gaming industry right now is the way games don't fit quite as neatly into existing genres as they used to. Puzzle games can be first person, shooters have role-playing elements, and the letters "MMO" don't necessarily have to be followed by "RPG". Upcoming PC title PlanetSide 2 is following in its predecessor's footsteps by providing gamers with a first-person shooter experience on a massive scale, with hundreds of players working together-or against each other-in a huge open world. It's ambitious, it's beautiful, and it's very deep. And it's also completely free to play.