XIII is a first-person shooter video game released in 2003, developed by Ubisoft and based on the Belgian comic series of the same name. Players assume the role of an amnesiac man, known only as XIII, who is trying to uncover his identity while being pursued by various enemies. The game features a distinctive cel-shaded art style, which gives it a comic book-like appearance. The gameplay combines stealth and action elements, allowing players to use a variety of weapons and tactics to progress through levels. Set in a conspiracy-laden narrative, players explore different environments, solve puzzles, and engage in combat, all while piecing together the protagonist's past and the mystery surrounding his character.