Firewatch

Firewatch is a first-person single-player mystery set in the Wyoming wilderness, where your only emotional lifeline is the person on the other end of a handheld radio. You play as a man named Henry who has retreated from his messy life to work as a fire lookout in the wilderness. Your supervisor Delilah is available to you at all times over a small, handheld radio—your only contact with the world you've left behind.