[LocoColt04]

Well... you have to purchase the game, but then you can play the first month for "free." I put free in quotes because it's a trial period, and if you keep the account at the end of the trial, you're billed for that month on top of the remainder of whatever month you end up in. So technically, it's not free, but it's a trial period all the same.

You can't get the game for free, though. You have to go purchase a full copy. Oh, and to give you an idea of how big it is, if you get it for PC, it's 6GB.