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Warframe

Warframe is a free to play sci-fi third-person shooter with randomly generated maps and mission objectives. Player characters (the Tenno) gain experience points (called "Affinity" in this game) and their Warframes (highly-advanced techno-organic battlesuits) and weapons can be crafted and upgraded with items gained through random drops or mission rewards. They may also take part in either 1v1 duels in their clan's Dojo (should the clan construct one), or 2v2 matches in tiered Conclaves scattered throughout the solar system.

Tachyon: The Fringe

"Caught in the middle of a violent conflict on the fringe of the galaxy — your ability to survive will depend on your piloting skills and combat savvy as a mercenary space fighter. But, as you explore the vastly detailed world of Tachyon: The Fringe, you will often find that the most powerful weapon on your ship is in your head."

-Steam

Arma 3

Arma 3 is an open world tactical shooter video game being developed by Bohemia Interactive. It is expected to be released in Q3 2013. Arma 3's storyline takes place in the mid-2030s during the fictional Operation Magnitude, a military operation launched by NATO forces fighting in Europe against "Eastern armies" led by a resurgent Iran.

The Testament of Sherlock Holmes

Investigating a petty theft, solving a gruesome murder case, forestalling a sinister plot to overthrow the government: it's all in a day's work for London's most famous clue-sniffing eccentric.

WRC 3: FIA World Rally Championship

It took a couple dispensable titles and one lightweight-yet-essential mod, but Milestone's WRC series may finally be on the verge of redemption.

Antichamber

This can be a vary challenging, psychological mind bending, frustrating Game. That can test your skill at not following the norm, and what direction games normally make you follow, but instead makes you think out side the box, in more of 4 dimensions way. If you are use to just following the norm, and get frustrated easy, might be much for you, but still fun.

Ace Combat Assault Horizon - Enhanced Edition

Developed by the Project Aces team, ACE COMBAT™ ASSAULT HORIZON intensifies the franchise, escalating combat to the next level with aircraft that are literally torn apart, spewing oil and debris across the sky. Players will engage in combat across the globe, dodging skyscrapers, and turning their enemies into fiery supersonic debris in both single player and online multiplayer. Never before has combat been so fast in-your-face.

Prototype 2

Bigger, better, badder. Our new hero James Heller is an afro-american soldier who lost everything to the "Mercer virus". In videogame stereotype terms, that means constant angry gangsta swearing to compliment the gratuitous over-the-top violence. Sweet !

The Amazing Spider-Man

The Amazing Spider-Man is an open world action-adventure video game based on the Marvel Comics character Spider-Man and the 2012 film of the same name. It was developed by Beenox and published by Activision.

Source: Wikipedia