NeoGAFs Kent Brockman
Half-Life was Valve's first product, released on November 19, 1998. Players control Gordon Freeman, a theoretical physicist, after the Black Mesa Research Facility accidentally causes a dimensional rift which triggers an alien invasion. The game was published by Sierra Studios and released for Windows, and was ported by Gearbox Software to PlayStation 2 in 2001.
Valve later converted the game to use their Source engine. Half-Life received critical acclaim, critics hailing its overall presentation and numerous scripted sequences. The game won over 50 Game of the Year awards and its gameplay has influenced first-person shooters for years to come. Half-Life has since been regarded as one of the greatest games of all time.