Half-Life: Blue Shift
= Half-Life: Blue Shift
{wiki=Half-Life:_Blue_Shift}
Half-Life: Blue Shift is a standalone expansion for the classic first-person shooter game Half-Life, developed by Gearbox Software and published by Sierra Studios. Released in 2001, Blue Shift follows the story of Barney Calhoun, a security guard at the Black Mesa Research Facility, who must navigate the chaos following the resonance cascade that occurs in the original Half-Life.