Hi, my boys play minecraft on iPad and can go in each other's worlds and play. I want to buy a PS4 for Christmas for them and minecraft games so they can play together. I know they can play on same world in Lego avengers etc, but reading about the PS4 minecraft games they are all single person. Is this so? Can anyone help? Which, if any, PS4 minecraft games can I buy where both my boys can play together at th same time? Thanks