Oscar the Automaton with a Heart

I have never cried due to a game, but man, this really hit me hard:

"Kate Walker, I am really very pleased to have met you. It was really a very beautiful voyage. Now it is time to say farewell... Automatons are constructed to serve man... Goodbye, Kate Walker. I have perfectly understood, Kate Walker. I am only an automaton and... It is time I served some purpose."