One of the best war games collections that include an epic range of third-person shooter games along with the downloadable content. It must be noticed that very few video game series have made it as far as Call of Duty has and it’s hard to call yourself an FPS game lover without playing Call of Duty. The storyline, locations, campaigns, modes, weapons, and other features of the Call of Duty series are so rich in variety that it’s almost impossible to enlist all of them here. Some of the games are set in World War II, some include the secret missions of the Cold War, and some are even set in the current and future times. Through the provided digital CD-keys, you can play the series of Call of Duty games on Steam without any inconvenience and gather the experience of how it feels like to be on an actual battlefield.