The Call of Duty franchise has released a total of 49 titles since its inception in 2003. A quiz has been created to test players' knowledge of these titles, which includes games across various platforms such as PC, console, mobile, and handheld devices. The quiz provides the year of release, platform, and lead developers for each title. Participants have 2.5 minutes to complete the quiz, must type out the full title without abbreviations, and capitalization does not matter. The quiz aims to evoke memories of titles that players may have forgotten.