So these pictures do show the end of the game…so I wouldn’t actually look at these if you have not played the game yet and think you might do!
About three quarters into the game you end up in a caravan/holiday park, where a lot more of the answers become clear. This is where you also find out about Kate and how she, I think, survived the rapture. I’m trying not to spoil it too much and this game has so much depth I honestly cannot do it justice (or describe it well) with only one play. There are many aspects that I still don’t really understand (which is a good thing here, it makes me want to play again and find more answers).
One thing you do get to do at at the end though, you get to go through those locked gates from the beginning and find what has been waiting for you…