Let’s do this.
Day 1 Question - First RPG Played
Fighting Fantasy: the Introductory Role-playing Game. (Something I share with Jon Hodgson, it turns out.) As I have mentioned on this here blog thingy before. A familiar super-basic system, a little book of how to GM, two dungeon bashes. Played one (and died due to a GM call I still think is unfair) and GMed another, then had to make up my own so the group (my brother and our five female cousins) could keep going.
I was the only one who really got hooked as far as I know. Then my cousins moved, I went to high school and built a regular-ish group, some of whom I still roll them bones with today.