It’s hard to believe that it’s been two years since Microsoft initially introduced its Games With Gold program, in which certain game titles are offered free of charge to users who subscribe to Xbox Live Gold. The program has matured quite a bit over the years, offering more blockbuster titles, as well as exclusive first-day releases, such as Pool Nation FX and #IDARB.

Now, the program is expanding even further. According to the Xbox Wire page, starting with next month’s offerings, Xbox Live members will now get double the games on a monthly basis on the Xbox One, instead of just the one default title. Over the past few months, Microsoft has been hinting at such an expansion, offering two titles instead of the usual one, including the likes of the role-playing adventure Massive Chalice and other titles.

The titles will be offered on a monthly basis, but broken out into two-week periods. Up first, free from July 1st to 31st, is the Ubisoft pirating adventure Assassin’s Creed IV: Black Flag. Following on July 16th (through August 15th) is the puzzle/platforming adventure So Many Me’s.

The program will also continue on the Xbox 360 with two titles offered every month. July 1-15 will see the availability of PopCap’s puzzle game Plants Vs. Zombies, while the classic sequel Gears of War 3 will be offered from July 16-31.

“It’s been two years and we hope you’ve enjoyed playing all the amazing games as much as we have,” said the company in a statement. “We look forward to many more games to share with the Xbox community.”

Such a move is an effective one by Microsoft, as it not only allows the company to thank its hardcore gaming community, but also bolsters the opportunity to sell more Xbox Live Gold subscriptions. Adding freebie games to a service such as this will certainly serve as a benefit, especially if more AAA-based game titles like Black Flag are involved.

The full details on the Games With Gold program can be found here.