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,

There's graphics updates. There's incorporation of episodes. There's every thing your little Half-Life heart desires (except for a new game).

Valve has issued a 20th anniversary update for Half-Life 2, and the game is now available for free through November 18. The other titles in the Half-Life series are all on sale, with deep discounts, and there’s a new two-hour documentary about the making of the game.

In a new two-hour documentary from Valve, current and former members of the company talk openly about the creation of Half-Life 2 as well as finally spilling the beans on what happened to Episode 3, and even showing gameplay of early prototypes of the canceled game.

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.

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,