Big mall is your last option
From Create Your Own Story
Mall is last buidling, there could be supplies: food, meds, weapons. You walk to the front door. They are revolving so there can be some walkers inside that wandered here. Mall is really big and there are no walkers. Everything is quiet. First you go to find some food, there is a big pile of food. Looks like no one was here since the outbreak, you wonder why...this is...very weird.
Someone knocks you out.