I was told by my friend, (Considering I only played it for a little while and really did nothing, except grew a hatred for the game to load while diging), that a game set in a "free" environment was basically just paths that you couldnt leave from. Like, Suikoden III or something, where you are trapped in an enclosed space, where it gives the feel of being free, but your not.
This game is the perverbial Iraq of the game world.
