Microsoft has officially unveiled the September lineup of free titles for the Xbox Games with Gold program.

The list features two games for the Xbox One and another pair for the Xbox 360, according to a post on Xbox Wire.

The featured free games for Microsoft's next-gen console are "The Deer God" and "Tomb Raider: Definitive Edition," which are originally priced at $14.99 and $29.99 respectively. The former will be available for free from September 1 to 30 while the latter will debut on September 16 to October 15.

The first title was released by developer Crescent Moon Games in February and follows the story of a hunter whose spirit was transported into the body of a deer. This adventure indie game features platformer elements and is set in a 3D pixelized environment. It carries themes of karma, reincarnation and survival, Gamerant reported.

The second game, on the other hand, is a complete version of 2013's "Tomb Raider," which is the first reboot of the original series. "Tomb Raider: The Definitive Edition" comes with all of the game's downloadable content and has a graphic resolution of 1080p.

In the game, players take on the role of iconic explorer Lara Croft as she goes on an expedition on the mysterious Yamati island in Japan.

As for Xbox 360 owners, they'll be able to get "Battlestations: Pacific" from September 1 to 15 and "Crysis 3" from September 16 to 30.

"Battlestations: Pacific" first came out for the Xbox 360 in 2009 as the direct sequel to "Battlestations: Midway." Set in World War II, the game lets players take on the role of commanders for the Americans or Japanese. They'll have access to naval ships, airplanes and various kinds of weapons to combat enemy forces.

Both sides feature 14 missions each and are set in various locations such as in the Philippines, Hawaii and Japan.

Last on the list is "Crysis 3." This first-person shooter game was originally developed by Electronic Arts for the Microsoft Windows, PlayStation 3 and Xbox 360 platforms in 2012.

The game features a futuristic setting and is set 24 years after the events of "Crysis 2." In the game, players take control of the protagonist Prophet as he makes his way through an alternate version of New York City. His main objective is to defeat the alien race Ceph that has invaded Earth.

These four titles can be downloaded for free starting next month and will only be available to Xbox Live Gold members.