Yakuza 0 is an action-adventure video game developed by Sega. Released in 2015, it serves as a prequel to the Yakuza series, set in 1988 Tokyo and Osaka. Players control two main characters, Kazuma Kiryu and Goro Majima, as they navigate the criminal underworld, engaging in combat, completing side quests, and exploring vibrant open-world environments. The game features a mix of intense brawling and various mini-games, such as karaoke and arcade games. Its narrative delves into themes of loyalty, ambition, and the complexities of organized crime, providing players with a rich story and engaging gameplay experience.