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.

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

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,

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: Episode 3 remains one of the great what-ifs in gaming history. Now, on the occasion of Half-Life 2's 20th anniversary, Valve has opened up about its development in a brand-new documentary that shows never-before-seen work-in-progress footage,