Garry’s Mod is a sandbox mod for the Source Engine. Unlike normal games there aren't any predefined aims or goals. Players are given tools and are left to entertain themselves. The player is in a world where objects can be created and destroyed on demand. Where people can be created and destroyed with the click of a mouse. A world made for him. A world he made.
"YOU WILL FUCKING PLAY YOUR PART IN THIS SCENE, FRANCIS, OR I WILL TAKE THE LIBERTY TO BLOW YOUR BRAINS OUT! DO YOU UNDERSTAND THAT!?" -The Director/S.A.S. Dude A.K.A. Me.
Oh man this scene was fun to make.
By the way.
It's a behind the scenes version of this.