Half-Life (series) 3 !

Half-Life is the first title for the series, and was the debut title of Valve Software. First released on November 19, 1998, Half-Life follows Gordon Freeman, a theoretical physicist, after the Black Mesa Research Facility accidentally causes a dimensional rift which allows the facility to be invaded by aliens. Freeman consequently attempts to survive the slaughter and resolve the situation. The game was originally published by Sierra Studios and released for Windows, although Gearbox Software would later port the game to PlayStation 2 in 2001.[2] Valve themselves later converted the game to utilize their Source engine.[3] Half-Life received critical acclaim upon release, critics hailing its overall presentation and numerous scripted sequences.[4] The game won over 50 Game of the Year awards[5] 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.[6][7]
Half-Life was followed by an expansion pack, Half-Life: Opposing Force, on November 1, 1999.[8] Unlike Half-Life, Opposing Force was developed by Gearbox Software, although it was still published by Sierra Studios. Opposing Force was first announced as a mission pack for Half-Life in April 1999, and was released for the Windows version of the game.[9] The player no longer assumes the role of Gordon Freeman, but rather sees the later events of the first game from the perspective of a US Marine corporal, Adrian Shephard. Shephard is initially assigned to cover up the events at Black Mesa, but is soon left isolated and has to fight to survive against a new group of alien invaders and black operations units. Opposing Force was received favorably by critics,[10] many citing the game as being as influential on setting expansion pack standards as the original game had been in influencing the overall genre.[11][12][13] The game won the Computer Game of the Year Interactive Achievement Award of 2000 from the Academy of Interactive Arts & Sciences.[14]





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