Zephyr Games

In Half-Life, the G-Man made you. In Half-Life 2, he used you to defeat Dr. Breen and start the Resistance. In Episode One, he's lost control.Half-Life 2: Episode One is the first in a series of adventures that extend the Half-Life 2 single player experience. It details the aftermath of Half Life 2 and launches a journey beyond City 17.Stepping into the hazard suit of Dr. Gordon Freeman, you face the immediate repercussions of your actions in City 17 and the Citadel. Rejoin Alyx Vance and her robot, Dog, to once again aid the human resistance in their desperate battle against the totalitarian alien menace of the Combine.Episode One exposes Alyx's combat skills and knowledge of City 17. Battle side-by-side with her through Valve's first episodic game, a four-to-six hour adventure of greater density and detail than non-episodic releases.In addition to the single player campaign, Half-Life 2: Episode One also includes two multiplayer games. And everything you need to play is included in the box--Half-Life 2 is not required to play.