.hack Quarantine takes place in a mysterious virtual reality world, where players assume the role of Rezo, a young man who has been trapped inside this digital realm for an unknown amount of time. As Rezo, you must navigate through the dark and eerie environment, trying to find a way out while uncovering the secrets behind the Quarantine.
Gameplay in .hack Quarantine is action-RPG style, where you control Rezo as he battles against various enemies in turn-based combat. The game features an open-world design, allowing players to explore different areas and interact with non-playable characters (NPCs). The game's story is heavily focused on character development and relationships, making it a more narrative-driven experience compared to traditional RPGs.
.hack Quarantine was released for the PlayStation 2 in January 2004.