This weekend only, play Modern Warfare 3 for FREE until Sunday at 1pm Pacific Time. Plus, save 50% off during the Weekend Deal*!

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. In the world’s darkest hour, are you willing to do what is necessary? Prepare yourself for a cinematic thrill-ride only Call of Duty can deliver. The definitive Multiplayer experience returns bigger and better than ever, loaded with new maps, modes and features. 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.

*Discount ends Monday at 10am Pacific Time.

Kick off the weekend by playing Call of Duty®: Modern Warfare® 3 for FREE starting now through Sunday at 1PM Pacific Time.

Additionally, pickup Call of Duty®: Modern Warfare® 3 this weekend only at 33% off the regular price! Sale ends Monday, April 30th at 10AM Pacific Time.

If you already have Steam installed you can click here to install or play. If you don't have Steam, you can download it here.

Kick off the weekend by playing Call of Duty®: Modern Warfare® 3 for FREE starting now through Sunday at 1PM Pacific Time.

Additionally, pickup Call of Duty®: Modern Warfare® 3 this weekend only at 33% off the regular price! Sale ends Monday, February 20th at 10AM Pacific Time.

If you already have Steam installed you can click here to install or play. If you don't have Steam, you can download it here.

Activision will be hosting a Free Weekend for Call of Duty®: Modern Warfare® 3! Pre-load the game now and be ready to play when the free weekend starts on Thursday, February 16th at 10am Pacific Time.

Click here to start pre-loading, or visit www.steamgames.com/about to install Steam.

The Free Weekend of Call of Duty®: Modern Warfare® 3 will let you play the entire multiplayer portion of the base game.

Pre-Load Call of Duty®: Modern Warfare® 3 now and be ready to play when it releases!

Get ready for the best-selling first person action series of all-time as it returns with the epic sequel to multiple “Game of the Year” award winner, Call of Duty®: Modern Warfare® 2.

Plus it's not too late to pre-purchase Call of Duty®: Modern Warfare® 3 and receive a free copy of Call of Duty® 4: Modern Warfare®! Already own Call of Duty® 4: Modern Warfare® on Steam? Give the extra copy to a friend!

To further sweeten the deal and get everyone primed for the next Call of Duty, all new and existing customers who pre-purchase Call of Duty®: Modern Warfare® 3 on Steam will receive a free copy of Call of Duty® 4: Modern Warfare®!

Already own Call of Duty® 4: Modern Warfare® on Steam? Give the extra copy to a friend!