Hitman 2: Silent Assassin is a 2002 stealth video game developed by IO Interactive and published by Eidos Interactive for Microsoft Windows, PlayStation 2, Xbox and GameCube. The game was re-released for Windows through the Steam online distribution service, and a DRM-free version was later made available through GOG.com. It is the second installment in the Hitman video game series and the sequel to Hitman: Codename 47. The single-player story once again follows Agent 47, a genetically enhanced human clone who worked for the International Contract Agency (ICA) as an assassin. Following the events of Codename 47, the former contract killer has retired and started a peaceful life at a church, but after his only friend, Reverend Emilio Vittorio, is kidnapped by unknown assailants, 47 resumes work for the ICA in hopes of tracking him down.

Hitman: Codename 47 is a stealth video game developed by IO Interactive and published by Eidos Interactive for Microsoft Windows in November 2000. In the game, players control Agent 47, a genetically enhanced human clone who is rigorously trained in methods of murder. Upon escaping from his testing facility, 47 is hired by the International Contract Agency (ICA), a global contract killing organization. His missions take him to locations in Asia, Europe, and South America to assassinate wealthy and decadent criminals, who at first seem to share no connections with each other, but are soon revealed to have all played a role in a larger conspiracy. The gameplay revolves around finding ways to stealthily reach and eliminate each target; to this end, players can make use of various tools, including disguises and suppressed weaponry. However, some levels are more action-focused and do not feature stealth as a possibility, instead playing like a traditional third-person shooter.