I’m not sure how I missed this. It’s been out since 2005 after all.

I present to you the Half-Life and Death of Gordon Frohman:

This comic strip is based on the ground-breaking PC game Half-Life 2, by Valve software, and is created with the brilliant Garry’s Mod tool, which allows users to enter the game and basically play God by spawning and manipulating physical objects, posing character models, creating special effects, and taking pictures.