If you're a big fan of Left 4 Dead and haven't figured out your costume for this Halloween yet, this video might be just what you're looking for.
Over the course of more than 16 minutes Petrilude walks us through how to create a zombie look inspired by his favourite zombies games, Left 4 Dead and Left 4 Dead 2.
Be warned, this doesn't look like something anyone can pull off. It's going to take time and a bit of skill.
Check out the rest of Petrilude's videos for other interesting make-up tutorials and stay tuned for the two other zombie designs he'll be walking us through later this week.