

Most games in the series since then have consistently set their own record for the largest launch in entertainment history. Games following it have diverged into multiple sub-series. Though the series earned early fame as one of the finest WWII shooters on the PC, it didn't really take off on consoles until the fourth installment, when it switched to a modern setting. Other studios such as Raven Software also helped with the series.

There are three developer companies: Infinity Ward, Treyarch, and Sledgehammer Games. The series' publisher Activision uses a development cycle for the series to ensure that one game can come out each year while still giving enough time to developers to make the game good. So far, the series has appeared on the PC and has also appeared on most major consoles and handhelds.

The series is famed for its immersive storytelling techniques and engaging multiplayer mode. staff, who would go on to form Infinity Ward. Call of Duty (or CoD when abbreviated) is a series of First-Person Shooter games created as the Spiritual Successor to Medal of Honor: Allied Assault after the exodus of some 2015Inc.
