.hack//Infection is an action-RPG for the Sony PlayStation 2, set within a fictional MMORPG called The World. Players control Kite, a character investigating a virtual epidemic affecting players in reality. This immersive single-player experience blends unique simulation elements with hack-and-slash combat and a compelling narrative. It's part one of a four-game series featuring real-time battles, character customization, and a deep storyline that explores the blurring lines between virtual and reality.