I remember playing on the Amstead (yes, I remember the Amstead), though I was so young it's a bit of a 'one second' memory.
That said, the first game I played and remember clearly was Sonic 2 on the Mega Drive... good times.
E.T. on Atari but I barely remember it and it was at someone elses house.
Just as a random fact, did you know the story of them burying the game was true? They dug up a lot of those games in New Mexico.
Even to this day, I find that wild. A game so bad they buried it... and found it again.