In anticipation of the upcoming release of Half-Life 2, Valve Software has made Half-Life (one of the finest games of all time) available for free, via their new Steam client, a “broadband delivery platform” for simply distributing games and their updates. Also included is Counter-Strike, the most popular multiplayer game online, and Opposing Force, the Half-Life expansion pack with an alternate but parallel storyline to Half-Life.
You can download the Steam client from their site, which will soon be distributing exclusive media and updates for Half-Life 2. (Did I mention that Half-Life 2 may very well revolutionize the videogame industry, and I’m nearly peeing my pants in anticipation?)