During 2011 Steam grew to offer over 1,800 games to over 40 million accounts, increasing sales by more than 100% for the 7th straight year, and during the 2011 Holiday Sale Steam's simultaneous user number eclipsed the 5 million player mark.

In Battlefield 3, players step into the role of the elite U.S. Marines. As the first boots on the ground, players will experience heart-pounding missions across diverse locations including Paris, Tehran and New York.

Scarygirl is a new action-platform game based on Nathan Jurevicius’ critically acclaimed graphic novel of the same name.

Gran Turismo 5 includes more than 1,000 cars, 20+ locations with 70+ track layouts, diverse racing styles including rally, track, karting, NASCAR, and more, deep online community features and online racing, plus Gran Turismo TV, Course Maker and more.

Ninja Gaiden Sigma is an upgraded version of Ninja Gaiden Black, with an improved combat system, updated graphics, new weapons, and the ability to wield dual katanas.

Featuring an 83-song set list and access to far more music than ever before, as well as innovative new gameplay modes and instruments, Rock Band 3 will change the way fans think about and play music games.

Wargame: European Escalation is built around depth and reflection, the key elements of classic wargames, featuring intense real-time battles, stunning graphics, and the amazing IRISZOOM system, which allows a continuous zoom from a global view of the map to the heart of the action.

The unfolding drama of Final Fantasy XIII continues in Final Fantasy XIII-2. Explore a richly developed world featuring both new and familiar faces, and an exciting and highly developed strategic battle system. In this ongoing saga, the future is about to change...

Repulse is a free to play massively multiplayer online FPS set in a dystopian future where the citizens of Earth have polluted the planet beyond repair. Repulse unfolds an epic sci-fi inspired tale where humans must journey to a new world to continue their existence.

While in the original you played as Alex Mercer, the tables will be turned in the sequel as you will control Sergeant James Heller with the sole mission of finishing off the protagonist of the first title by becoming a a mutated monster yourself.