29. Call of Duty (2003)
This is the one that started it all. Before examining the fictional world of Middle Eastern terrorism and CIA mind control, the Call of Duty series was firmly established as the premier World War 2 franchise. The first Call of Duty reinvented the genre through its introduction of in-squad warfare, surrounding you with actual teammates instead of forcing you to go at it alone as in games like Medal of Honor. Aside from building Activision's complimentary yacht/mansion program for executives, it was the first WWII title that let you see the war from the eyes of British and Soviet troops.