What an interesting way of stating one's age...we have another philosopher in our midst!
As an avid gamer, I think that some games are fine to release because they tend to be much like novels themselves. Many have long narratives that must be read and processed in order to play the game. It is interesting to see that he has just released the very game that I reinstalled and began to play last night (after finishing it about 4 years ago)
The ISBN (International Standard Book Number) is a unique machine-readable identification number which marks any book unmistakably. The number system has been in use now for over 30 years and has revolutionised the international book-trade. 159 countries and territories are officially ISBN members. The ISBN accompanies a publication from its production onwards.