Alyx Vance, is the girl in Half-Life 2 that fights on your side most of the time. She is the child of Eli Vance. Alyx saves your life against a few Metro Cops in a City 17 building. She is your side-kick, she uses a semi-automatic pistol (also called Alyx Gun), and she also uses a Devise to hack combine locks and combine computers. Some say Gordon and Alyx have a relationship. In Episode One and Episode Two she is with you every step of the way!
Alyx Vance is an ally and Gordon's girlfriend, she is with you most of the time. She is also one of the best Zombie fighters! She is ethletic, pretty, strong, and nice. She doesn't always use her pistol, she uses a shotgun in Episode One, and a Sniper Rifle in Episodes One and Two.