Real-time gameplay - Time marches on whether Frank is actively engaged or simply stationary
Dynamic enemies - Record numbers of zombies will come at you & react to their environment -- each has unique behaviors and appearances
The variety of stores will give you weapons aplenty - an endless supply of vehicles?? makeshift weapons?? and food are waiting for you
Encounter other survivors along the way -- helping them will give you more clues as to what has happened and what you need to do to s