I might have played a game here or there prior to this, but I don't remember. I do remember my dad and sisters came home with a NES and Super Mario Bros./Duckhunt. So those would be my first games.
Then it was on to SNES which I probably played more of than NES. After that I was renting games everyweek (back when there was no internet so you had to rent movies, and also back when movie rental outlets gave away a ton of 2 for 1 rental coupons

)
I remember on PC my first games were Wolfenstein, Blake 3D, Doom, Duke Nukem 3D, Mantis, X Wing, Tie Fighter, Raptor, Galaga... uhhh... yeah etc...