Half-Life Series Free To Play Ahead Of Half-Life: Alyx Release - GameSpot

In anticipation of Half-Life: Alyx, Valve has made every game in the series free to enjoy until April 1.
Half-Life 2 is a very impressive and engaging shooter, and a faithful follow-up to one of the greatest PC games of all time.

Half-Life 2 storyline, Half-Life Wiki

Half-Life 2 - GameSpot

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