PC HALF LIFE 2 EPISODE ONE
Half-Life 2: Episode One is a 2006 first-person shooter developed and published by Valve. Like the previous Half-Life games, it combines shooting, puzzle solving and storytelling. The players control the scientist Gordon Freeman, who, with his companion Alyx Vance, must escape from city 17 before an explosion destroys it.
Episode 1 was the first in a planned trilogy of shorter episodic games that continue the story of Half-Life 2 (2004). Valve wanted to release new games quickly, without spending years developing a major new product with new tools. For episode one, they focused on the player’s relationship with Alyx, developing his artificial intelligence. The game uses an updated version of the Source engine from Valve, with new lighting and animation technology.