Call of Duty 4: Modern Warfare (2007) on Steam. The new action-thriller from the award-winning team at Infinity Ward, the creators of the Call of Duty series, delivers the most intense and cinematic action experience ever.

Common Problems\n\n Restart your computer to resolve problems caused by programs and services running in the background. Update your drivers and operating system to resolve any compatibility issues. Configure your security software's exception list to allow Blizzard applications to run.