I like your grandfather already. A good grandson would find a way.
My grandfather loves to play an old Software Toolworks version of cribbage and gin that I spent dozens of hours trying to find. Apparently it changes the install files to only work on your specific hardware so if you installed it from the floppy you could never use it again.
And it wasn’t popular enough to find but I finally was able to make it work with dosbox which he doesn’t know how to use even though I wrote down exactly what to type in.
O.P your grandpa left that disc in pretty good condition, nice.
OP do you like how everyone assumed you actually didn't know how to load the game and commenced teaching you how?
Maybe just play poker with him? He'd probably prefer that.
Kids these days just don't have good problem solving life skills. Lackadaisical at best, get it done for the pop pop!