Warcross by Marie Lu is an example of the virtual world taking a culture by storm. Warcross is the video game that everyone wants to play. It is the next step in virtual reality as the playing field is superimposed over the physical world. So, your own world is enhanced by the virtual world. Observers can also enter the game and watch the players, but the players can not see them. So, when Emika Chen reaches into a championship game and disrupts the play, her world is turned upside down.
Another example of technology taking over is The Evaporation of Sofi Snow by Mary Weber. In Sofi's world, cameras watch every move. Everything you do is recorded and tracked. Sofi is one of those watching and monitoring the game. They claim to monitor the players for their protection, but Sofi knows that she is the only one who really cares about her brother. So, when there is an explosion, Sofi feels helpless to protect her brother.
The Book Jumper by Mechthild Glaser sounds like a video game, but there is no video screen. A book jumper is someone who can jump into the story on the page. For Amy, this is a new power, and it is exciting to be able to interact with the characters in the book. This sounds like virtual reality, but for Amy, her adventures are real, and the dangers exist. As she jumps into books, she finds that someone is stealing from the stories and she is determined to uncover the culprit.