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.
I remember playing some CGA games with some Hercules graphics card. There was two TSR programs which made it possible to run CGA color games with the yellow-on-black Hercules display.
I remember playing some Spiderman game for PC with ega graphics (or at least had a 16 color palette) on the 286 of my father with monochrome (Hercules ?) display.
