Warcross by Marie Lu

In a future where a virtual reality game called Warcross dominates global culture, a young hacker and bounty hunter named Emika Chen struggles to make ends meet. After accidentally glitching herself into the game's international championship, she is unexpectedly recruited by the game's creator to uncover a security threat. As she delves deeper into the virtual world, Emika uncovers a sinister plot that could have real-world consequences, forcing her to navigate complex alliances and her own feelings as she races against time to save the game and herself.