Back in the day as a kid I played Gertrudes secret, I've also been known to play some old school dungeon crawlers (namely Dungeons of the unforgiven/moraff's world), I also have a terrible wizardry habit, if I get started playing wizardry (on the apple 2, nes, or the port to pc), that'll be the end of the weekend for me. I also used to play a lot of the apogee shareware games, and played a lot of DoTT.
There was also an old school game called castle that I used to play a lot.