Set eight years before Arkham Asylum, this prequel explores a younger, less-experienced Batman who must face eight elite assassins dispatched by crime lord Black Mask on Christmas Eve in Gotham City. As Batman hunts down these threats, he unravels corruption in the GCPD and confronts early run-ins with iconic foes like the Joker. The game blends combat, stealth, detective work, and an open-world Gotham to uncover its mysteries.