Alex Vance is a fictional character from the video game series Half-Life. She is known for her intelligence, resourcefulness, and strong combat skills. Alex is the daughter of Eli Vance, a key figure in the resistance against the alien Combine forces. In the games, Alex serves as a companion to the protagonist, Gordon Freeman. She helps him navigate through dangerous environments and provides crucial support during battles. Her character is celebrated for her depth and relatability, making her a fan favorite in the Half-Life community.