Bethesda has made improvements over Morrowind in almost every imaginable aspect, with a huge world, a massive and compelling main quest, an unbelievable number of fully-voiced NPCs and a simply astounding number of things to do. It all comes together to form the most involving single-player RPG you could ever hope to play, and probably will remain so for quite a while. It's the kind of game that's difficult to describe without descending into a rampant and meandering tale about some adventure you found yourself on, possibly accompanied by jumping about and swinging an imaginary sword at your mates.