So there's this game, and it starts shortly before your first birthday. It's called Alter Ego, and you can play it here.

Basically you navigate your life by answering questions based on how you genuinely would respond to a situation. However, as you get older, the situations become more complicated. You basically play until you die. It's a very interesting game, and I would recommend that everyone plays it at least once. It does have a bit of mature content, but nothing graphic.