Published and distributed by Aspyr Media, Inc. All other trademarks and trade names are the properties of their respective owners. The ratings icon is a registered trademark of the Entertainment Software Association. Activision, Call of Duty and Modern Warfare are registered trademarks and Call of Duty MW3 is a trademark of Activision Publishing, Inc. If you do not already have a free Steam account, get one here and make sure you read the Steam Subscriber Agreement. Other Requirements: To Activate Call of Duty®: Modern Warfare® 3, you will need to be connected to the internet and have a Steam account (free). NOTICE: This game is not supported on volumes formatted as Mac OS Extended (Case Sensitive) NOTICE: The following video chipsets are unsupported for Call of Duty®: Modern Warfare® 3 Co-Op play has evolved with all-new Spec-Ops missions and leaderboards, as well as Survival Mode, an action-packed combat progression unlike any other. The definitive Multiplayer experience returns bigger and better than ever, loaded with new maps, modes and features.
Prepare yourself for a cinematic thrill-ride only Call of Duty® can deliver. In the world’s darkest hour, are you willing to do what is necessary? The best-selling first person action series of all time returns with the epic sequel to multiple “Game of the Year” award winner, 'Call of Duty®: Modern Warfare® 2.' NOTICE: Activation key must be used on a valid Steam account.
