Half-Life 2 is 20 years old and has been updated with Steam Workshop support and developer commentary

Half-Life 2 just turned 20 years old, and to celebrate Valve have released an update for their classic first-person shooter. In brief: they've recorded developer commentary; they've added Steam Workshop support; Episodes One and Two are now part of the package; and there are some bug fixes and new graphics options.

Grab it before the end of the weekend (November 18th at 6pm GMT) and it's also free to keep on Steam.

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