Microsoft Corp. this week began holding the Free Play Days For All event for the Xbox One and the Xbox 360.

Through May 20, Xbox Live users without a Xbox Live Gold membership can play online at no cost.

In addition, all Xbox One users will have free access to Rainbow Six Siege and Fallout 4.

In Q3, Microsoft said gaming revenue increased 18 percent to $2.25 billion from Xbox software and services revenue growth of 24 percent.

Xbox Live monthly active users increased to 59 million users in the period.