I mean the very first console, arcade, or PC game that absolutely made you cut out sleep, food, homework, or anything else just to 'get to the next level'? In other words, your first taste of eCrack. For me, probably Ultima III back in the day. I played it on my friend's Apple IIe and bought it next day for my C64. I spent weeks staying up all night in our spare room plugging away on that game one summer. Man, that was a looooong time ago in a mindset far, far away... What was your first electronic habit of choice?