Assassin's Creed: Brotherhood is an action-adventure video game developed by Ubisoft and released in 2010. It is the third main installment in the Assassin's Creed series and follows the story of Ezio Auditore, a master assassin in Renaissance Italy. Players explore a detailed open-world environment, primarily set in Rome, while engaging in stealth, parkour, and combat. The game introduces a multiplayer mode, allowing players to compete against each other in various game types. Additionally, it features a new mechanic where players can recruit and train other assassins to aid in missions. The narrative continues the overarching conflict between the Assassins and the Templars.