Diablo III is the newest of the Diablo series of games, taking place about 20 years after the end of Diablo II.  You take on a new set of heroes with brand new classes;  Match Arrow for demon with Demon Hunter; Smash everything in sight with the Barbarian; Bring Harmony with the Monk; Obliterate with the Wizard; Bring the Hammer down with the Crusader; Play some Voodoo with the Witch doctor.  Slaughter Demons from Normal to Torment.