Virtual War is hard to categorize. It's dystopian fiction in the sense that the main character is subject to an oppressive regime in a post-apocalyptic world. It's unclear whether that reigns true for the masses, who largely live in tight-knit, utilitarian communities devoid of much luxury. The main character, Corgan, has lived all his fourteen years in a gilded cage by comparison. His days and nights are spent in a box, with virtual walls that can show him anywhere and be anything, including his holographic mentor and motherfigure, but can't connect him with reality. Reality is purposefully distorted, visually and figuratively, to prevent Corgan from thinking, doing, saying or feeling much else besides what They want.
They is a colloquial term used for the ruling council of the city state in which Corgan resides, an important center for the upcoming virtual war for which Corgan is being trained, but They are used so frequently and bluntly in the story that They take on a personality of their own, distinct from the council. It's a clever concept to dehumanize characters that never willingly show Their humanity to Corgan in the first place.
As the book has Corgan meeting his eventual teammates for the war ahead, his perfect world unravels by mischief of Sharla and the genius of Brig. Corgan's interaction with them is both raw and realistic, and the more he spends time with his new teammates, the more the illusion built around him shatters. The result is spellbinding, the author builds up enough of Corgan's world for him to tear down, and the process by which he does it carries the reader along gracefully without any hiccups.
Having read one of the sequels, I wouldn't recommend venturing further into the story, the writing quality suffers significantly after this book. Still, alone this book is a towering masterpiece of middle grade fiction, and still enjoyable by adults for the clever riddle of oppression and disillusion it presents.