Love it or hate it, I love it. Right now im on Nightmare act III. Everytime you beat Diablo it opens a new difficulty from normal, nightmare, hell, and inferno. On top of it opening harder difficulties, they're are new side quest to do in every difficulty with random maps. Also, you get better and better armor/weapons father you venture in the game. You just cant play though Diablo one time on normal and expect to get your full enjoyment. The game was made to play though atleast three times, normal,nightmare,hell thats so you can achiev all achievements. Inferno is there just for the hardcore diablo fans, you die one time thats it, GAME