Slave Zero X plunges you into the crumbling depths of Megacity S1-9, where the iron-fisted Sovereign Khan holds sway from the city’s highest tower. Four years before the events of the original Slave Zero, a band of elite warriors known as The Guardians seeks to prevent biomechanical horrors—deadly living machines called Slaves—from ever being unleashed. But when one swordsman named Shou steals a Prototype Slave Unit, he makes a radical choice: fuse with the machine and become an unstoppable Demon bent on toppling a false God.