I know I had already posted today but thought that I would give you Kon'ers a game with some meat to it.
League of LegendsThis a game based off of Defense of the Ancients (DotA) which is a add on to Warcraft 3. I have been playing this game for the past month and love it. Its pretty much a mash up of a Tower defense game, RPG, RTS and 3rd person PVP. It can get intense. This is a game that you can play for free or buy things for. Up to you, ether way, the experience is the same. It is only a PC game currently (sorry Mac and Linux users). I highly suggest to try it out. If you end up making an account, friend me up with my summoner name of "DJBullock".
Welcome to summoner's rift. Hope you enjoy your stay.