Ready Player One, Paperback/Ernest Cline

Soon to be a major motion picture by Steven Spielberg, it is set in the year 2044 where poverty, famine and disease are now rife. For much of the world's population, OASIS - a sprawling virtual utopia - provides much-welcomed relief. Now, founder James Halliday is offering one lucky person the chance to control it, providing they can solve the riddles he's left behind...