Really cool "game", the story is very nice, over the course of the game you get so much attached to Clara in real life. In the game you don't really have any choice or anything. The truth is present time. You cannot change your past. In the present time, you are stuck in Antarctic with only one choice, survive. However you are presented "choices" in the past, which i think is how you actually like to remember the past. In the ending you could die while dying in denial, not accepting your past, or die peacefully knowing you've done wrong things in past. Either way it won't change the present condition.