I loved our C64 - the game I spent the most time playing was Toy Bizarre, but Blue Max, Zork, and others with names I can't remember were also faves:
http://ps2whore.blogspot.com/2007/11...ple-games.html
We would get the simple free games that came with magazines and some of those were fun. Movie Mogul or something like that was one I remember. There was a Swiss Family Robinson game I remember enjoying.
I wish I could remember the name of the one we had that was underground with rats and shit . . . my stepdad became obsessed with it and made his own map on graph paper. I'd like to play that again.