The details are foggy, but Loom in particular had some way to be playable on monochrome graphics, perhaps with some kind of CGA emulator. I have vivid memories of playing through this game on my Compaq XT clone in black-and-yellow with no mouse. Similar time frame; my family got the machine around 93-94 on a pretty low budget, but I learned a TON on it until we managed to buy a Pentium 133 a few years later.