I want to start off by saying that I get why people would love this book, and there were a bunch of moments in it that were fun. I'm in the demographic that's the prime target for the book (“geeky dude that was alive in the 1980s”) and on a surface level it was a fun trip down memory lane.
Under the surface, though, the story becomes a little disappointing. The main character, Wade, seems really underdeveloped and unremarkable, with little personality beyond “good at videogames”. Despite being such a cypher, though, the other characters in the story idealize him. The villains are similarly shallow. The justification for them being villainous is originally “they're a corporation and try to play the game strategically”, but then they're suddenly murdering dozens of innocent people. The story would have been a lot stronger had its characters been more developed and more fully realized.
This continues with the way that Ready Player One relates to its main theme of nostalgia. Nostalgia – specifically early-to-mid-80s nostalgia for mainstream pop music, video games, and movies – permeates every aspect of the story and the characters' lives. On the surface this might seem fun, especially for the target audience of the book. The problem is, however, that it's a story in which nostalgia and culture have become corrupted. The characters aren't nostalgic for the reasons that people in real life become nostalgic for stuff – because they're wishing for a return to a more carefree time, or because of personal, emotional links to the material. Instead, they're nostalgic for the 80s, a culture that they never experienced or encountered, because Halliday was nostalgic for the 80s. The rich old man has warped society into this cargo cult that worships the trinkets of his youth to the disservice of all else. There's no evidence of any culture existing in the world of Ready Player One beyond 2002 – just slavish observance to the things that Halliday loved. Halliday has an absolutely abusive relationship to the culture of the OASIS, and it's unfortunate that the book doesn't make any attempt to critique or analyze that relationship.
