Half-Life 2: Episode One

Half-Life 2: Episode One is a first-person shooter video game developed by Valve Corporation. It is the first episode of the Half-Life 2 series and was released on October 10, 2007. The game takes place after the events of Half-Life 2 and follows the story of Gordon Freeman as he navigates through a dystopian future world controlled by an alien alliance known as the Combine. Players must use their wits and combat skills to overcome obstacles and progress through the game's storyline.