Developed by Campo Santo, Firewatch was announced for PlayStation 4 and given a trailer at E3 2015 today.
The publisher added:
Have you heard of our upcoming game, Firewatch? (It’s a first-person mystery/drama/adventure set in the Wyoming wilderness. You’re Henry. You just got a job in a Firewatch tower. You make contact with another watcher who only exists on the other end of a handheld radio. And then… things happen.)