Ah, what the hell. May as well ask here if a thread exists.
Old, 2D, black and white Macintosh game, unsure of exact time period but definitely before the 2000s. You play as a little dude who has to go around a dungeon and find keys to unlock doors to progress. I can't remember if there were enemies or traps or monsters. The keys may have been in color, as the Macintosh we had was older than the see-through ones of the early 2000s but new enough to support color.
I also can't remember if it was grid based or if it had pixel movement. The graphics were super simple, like, classic Atari simple.
I realize this is incredibly vague but I haven't been able to find it.
Here's a little mockup of what I remember it looking like: