Call of Duty is a 2003 first-person shooter game developed by Infinity Ward and published by Activision. It is the first installment in the Call of Duty franchise, released on October 29, 2003, for Microsoft Windows.

PlayStation is the primary destination for Call of Duty games, with an install base of more than 150 million consoles, ensuring Sony gets a cut of every game sale on its platform and also a commission on in-game microtransactions.