Half-Life 2: Episode One

Half-Life 2: Episode One is the first of a planned trilogy of stand-alone expansion episodes for the 2004 first-person shooter Half-Life 2. Set immediately after Half-Life 2, it takes place in the war-torn City 17, where the player must face the consequences of their actions from the main game. Whil...

Set in City 17 just after the previous game, Half-Life 2: Episode One follows scientist Gordon Freeman and Alyx Vance as they race to prevent catastrophe. With the Citadel critically damaged, they work to stabilize the unstable Citadel core to buy time before it detonates—an explosion that would wipe out the city and the surrounding area. Once they’ve delayed the blast, Gordon and Alyx fight thei...