The Hitman Series is a popular video game franchise developed by IO Interactive. It centers around the character Agent 47, a genetically-engineered assassin known for his bald head and barcode tattoo. Players take on the role of Agent 47, completing various assassination missions in diverse locations around the world, using stealth and strategy to eliminate targets. The series began in 2000 with the release of Hitman: Codename 47 and has since expanded to include multiple sequels and spin-offs. The gameplay emphasizes player choice, allowing for different approaches to missions, from stealthy tactics to direct confrontations. The franchise has also inspired films and other media adaptations.