You can run Call of Duty 4: Modern Warfare on Windows operating systems. Call of Duty 4: Modern Warfare is a game developed by Infinity Ward and it is listed in the category. Call of Duty 4: Modern Warfare is licensed as Demo which means that the game is provided as a free download to users but it may be limited in functionality or be time-limited. You may need to pay at some moment to continue using product or to use all functionalities.