Half-Life 2: Episode One advances one of the most critically acclaimed and best-selling action games of all time, Half-Life 2, with new story and action. In Episode One, the player will unveil new secrets of City 17, engage in award-winning physical gameplay, and interact with stunning creatures.
Features:

• A brand new episode for one of the best-selling and critically acclaimed action games of all time. Reveals new secrets.
• Incredibly advanced Artificial Intelligence powers the most sophisticated characters ever witnessed in a game.
• Physical Gameplay: Objects obey the laws of gravity, friction, and buoyancy. Explore new uses for the physics cannon.
• Powered by Source and featuring High Dynamic Range (HDR) lighting, Aftermath provides amazing gameplay settings.

What’s new in this version : (Updated : May 29, 2015)

• SHIELD Android TV support
• UI improvements
• Broader localizations

Required Android O/S : 4.2+ NVIDIA SHIELD tablet