Once again players assume the role of Gordon Freeman, a scientist destined to save the Earth from hordes of gruesome alien attackers. Valve has created a fully realized world in Half-Life 2, with objects and characters that feature accurate physics properties, behaving with the appropriate mass, density, and physical properties of their real-life counterparts. Extremely intelligent computer AI result in enemies that plan, adapt, and respond to the player's actions.

• The Orange Box is the ultimate collection of innovative action games for console, and an amazing introduction to the Half Life series
• Episode Two takes gamers deeper into one of the best-known stories in gaming, following the desperate struggle of Gordon Freeman
• Arming players with a portal gun allowing them to create portals from one location to another with the press of a button
• Team Fortress 2 is the sequel to granddaddy of role-based multiplayer action games