Space is the place
The Solus Project is a “single-player survival game by Teotl Studios (The Ball, Unmechanical) and Grip Games, coming to PC and Xbox One in early 2016.” It basically sounds like the upcoming Matt Damon movie The Martian. Dead crew, one surviving spaceman must find a way to contact the homies on earth.
There’s a pretty neat website with more info about the planet you’ll be exploring, with promises of all kinds of secrets, dynamic environments, moon-based ocean tides. Space is the place.