Call of Duty is a popular first-person shooter video game franchise developed by Infinity Ward, Treyarch, and Sledgehammer Games, and published by Activision. The first Call of Duty game was released in 2003 and the franchise has since then become one of the most successful video game franchises in history, with numerous installments released on various platforms.
The games typically feature single-player campaigns that follow soldiers in various historical or fictional conflicts, as well as multiplayer modes that allow players to compete against each other online. The series has also expanded to include cooperative game modes, such as Zombies mode in certain installments.
The franchise is known for its intense, fast-paced gameplay, realistic graphics, and detailed depictions of warfare. The most recent installment in the series as of my knowledge cutoff date (September 2021) is Call of Duty: Black Ops Cold War, which was released in 2020. However, new installments are typically released every year