I played it in February, but Firewatch was my own personal summer camp. It offers a delightful, if sometimes melancholy and mysterious, departure from urban life with a vast expanse of nature to explore at your leisure.
A game that was highly anticipated, generally well-received at launch, and subsequently second-guessed for not being as life-changing as people thought it should have been, Firewatch is still an experience that sticks out in my memory as a very personal journey inward experienced through the eyes of a man searching for an escape (and maybe newfound purpose) after a period of loss and grief.