I just entered the thread to say Subnautica. God damn guys - play this game already.
Mainly didn't want to play it because I saw clips of it and read about it and I thought the game would make me feel uncomfortable, and I was. But that just added to the whole experience.
I remember surfacing from the water expecting to be facing the crashed ship in the east and it turned out I was facing west where there was nothing to see but open water and my heart started beating so fast lol. Such a weird thing to feel uncomfortable about in a video game, but I was sucked in and it felt like my safety net was taken from me and I was just in the middle of a fucking empty ocean.