It’s Half-Life 2’s 20th anniversary, and in celebration, Valve has released a special update that adds the Episode One and Episode Two expansions to the base game so you can play it all straight through,

Time surely flies, and Gordon Freeman's followers know it better than anyone. Half-Life 2 is celebrating its 20th anniversary, and Valve has decided to make good on the occasion. The developers have launched a significant update that makes the classic even better. It is available on Steam for free until November 18.

Half-Life 2 is getting a major update in celebration of the classic title’s 20th anniversary. In addition to Steam Workshop support directly within the game, Valve has fixed bugs and restored some content, added new graphics settings, updated gamepad ...

This celebration comes almost exactly a year after the original Half-Life received a similar update and documentary. For Half-Life 2, Valve has integrated its two expansions, Episode One and Episode Two,

Half-Life 2 has been given a major update for its 20th anniversary, making it temporarily free to own, giving it built in mod support, and more.

Valve is honoring the 20th anniversary of Half-Life 2 with a celebration that includes a brand-new two-hour documentary, a developer commentary update, and more.

To celebrate the 20th anniversary, Valve got the original Half-Life 2 development team back together to bring some much-needed updates to the game, with the game now being free for the weekend in addition to a bunch of BTS content that has been released.

Half-Life 2 is officially 20 years old this weekend, and to mark the occasion Valve has released a special anniversary update, bundling in a brand-new documentary, commentary, the previously separate Episodes 1 & 2,