It all began with the first game in 2003, during a time when World War 2 shooters were living their second golden age, when Call of Duty first took the world by storm.
It can be said, without any exaggeration, that the popularity and financial successes of Call of Duty has defined the entire first person shooter genre, with the original franchise still standing out in a crowd of imitators.
The Call of Duty series has gone through countless changes over the years, taking players through a huge variety of settings and showcasing, the work of several development studios.
