Among the details shown in the video, Episode 3 would have been set in the Arctic, and it would have focused on Alyx as a companion character. Aside from the Ice Gun, the footage

But also in that documentary, released for Half-Life 2's 20th anniversary, there's footage of some pretty cool-looking Episode 3 stuff, including an ice gun that could be used to

A documentary celebrating the 20th anniversary of Half-Life 2 has shown off development footage of the cancelled Half-Life 2: Episode 3 The new documentary, which can be viewed below, was produced by Secret Tape, a production arm of the popular crowd-funded documentary studio Noclip.

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,