Ready Player One by Ernest Cline
This is a United States where there is no gasoline, food is not readily available, and people have moved back into the cities. To house all the people stacks of metal trailers exist. Wade, a teenager, lives in one of these stacks with an aunt. Everyone lives virtually online even going to school virtually. A billionaire who grew up in the 80’s and came to own a huge Internet corp. dies and leaves in his will all his money to the first person who can beat a game he created rife with clues from the 80’s pop culture. There are three keys that have to be found. Wade and other” gunters” soon find out that the huge OASIS Internet corp. wants the money and will stop at nothing to get it. Very entertaining!