Despite Microsoft not yet releasing titles for the September 2015 list of free games exclusive to Xbox Live with Gold subscribers, players are already excited about what they can expect next month.

Christian Today said that Microsoft has offered four games for Xbox Live members for this month.

"The list includes the critically acclaimed 'Metal Gear Solid V: Ground Zeroes' for Xbox One for the entire month," said the report.

It added that Eko Software's zombie survival game "How to Survive: Storm Warning Edition" was released on Aug. 16 and will be available until Sept. 15.

Meanwhile, the horror survival game "Metro 2033" was made available for download until Aug. 15 while the "Metro: Last Light" became available starting Aug. 16 and will be free for download until the end of the month.

But as for the games next month, what can gamers really expect? Below is the list of the most anticipated games for September:

Mass Effect

According to Gamestop, this science-fiction action and role-playing game gives players a great gameplay experience.

"As one of the first human beings to step onto the galactic stage, you face a grave threat that may destroy all of civilization. Your job is complicated by the fact that no one believes that there is any threat at all," read the game description on Gamestop.

The game costs $6.29 and gamers would love if it could be downloaded for free.

Halo: Reach 

This game, according to IGN, lets gamers experience "the fateful moments that forged the Halo legend."

The story of the game mainly revolves on the Noble Team which is a group of heroic Spartan soldiers and their last stand on the planet Reach.

"Characters, enemies and environments are rendered in amazing detail by an all-new engine designed to deliver epic-scale encounters against the cunning and ruthless Covenant," added IGN.

The game currently costs $59.99.

Toy Soldiers

Metacritic said this game is full of action since players will be using "WWI toy soldiers vying for control of the trench-filled battlefields of Europe."

They can also make use of military tankers, planes and other war equipment.

These titles will remain rumored expectations until Microsoft announces the official list by next month.

Product Reviews said that it expected the September 2015 lineup to have four free games.

"There's a catch, and sadly it sounds like you will need to be in the Xbox Preview Program to benefit right now with Xbox One backwards compatibility," the site added.