Half-Life: Blue Shift, originally intended to be a Sega Dreamcast exclusive, is released as a PC exclusive. This second, stand-alone expansion pack puts the player in the shoes of Barney Calhoun, the first security guard you see knocking on the door near the tram tracks in the very first scene of the original game. We know he’s not the one who owes Gordon a beer, but continuity wasn’t all that Blue Shift was lacking. To make up for its 3-hour length and other shortcomings, it’s apologetically packaged with Opposing Force and a shiny new “high-definition” model pack upgrade. It receives lukewarm reviews at best.