A downloadable story expansion for Batman: Arkham Knight, A Matter of Family was developed by Rocksteady Studios and released in 2015 for PlayStation 4, Xbox One, and PC. Set before the events of Arkham Asylum, the expansion puts players in control of Barbara Gordon as Batgirl, placing the action entirely within an abandoned amusement park. The central objective is rescuing Commissioner Gordon, who has been taken captive by the Joker. Batgirl operates with a combat style distinct from Batman's, emphasizing hacking and stealth, and players can engage in dual-play combat alongside Robin. The expansion also incorporates puzzle sequences, with Joker's henchmen serving as the primary opposition throughout. Narratively, it offers a window into Batgirl's early years as a crime fighter and her connections to both Batman and Robin, functioning as a prequel character study within the broader Arkham continuity.

Storyline

Set before the events of Arkham Asylum, ‘A Matter of Family’ allows players to take on the role of Batgirl as you team up with Robin to save your father - Commissioner Gordon - from a lunatic’s trap. In an abandoned amusement park on the shores of Gotham, Batgirl and Robin must fight against the odds to save Barbara’s father and avoid falling victim to the Joker’s sinister plan. Trained by Batman, Batgirl combines devastating combat with unparalleled hacking abilities to take down enemies, control objects and solve puzzles. Explore the eerie Seagate Amusement Park in this action-packed adventure which culminates in the ultimate showdown between the good, the bad, and the clinically insane.