"Before" is a mod to the original Half Life game that supposedly tells us about some things that happened before Gordon Freeman screwed the entire world. It's short, but is it sweet?
At present, Irving's Zoo has 2,886 views spread across 6 videos for Half-Life, with the game making up 2 hours of published video on his channel. This makes up less than 0.57% of the total overall content for Half-Life on Irving's Zoo's YouTube channel.