I have seen credits on that game probably three times since it's launch. Anytime they release it on a new platform I instinctively snap it up.
I do agree that the world feels pretty empty, but it is Mars in their defense. The gameplay loop is so good though. And sometimes there's no better feeling than grabbing a sledgehammer and leveling a building.
Hopefully you're able to make it through! There's a little bit of variety introduced to the environment around the half to three quarter mark.