Subnautica is a game I have seen people play time and time again. I may get it eventually because it does look pretty interesting. I tend to enjoy open world games where you can do whatever you want.
I am definitely impressed with the look of the game. And I really like how you can go down really far in the ocean. Although I am not too impressed with how some resources are tricky and/or outright difficult to get, but that may have been fixed by now.