What would I need to do in order to create bigger maps in Civ II?

This game has been around for donkey’s years but I’ve always enjoyed playing it. I was wondering if there were a way I could make bigger maps. That is with more game squares. I think it’d be great to have one that was double the dimensions of the standard large map.

You can input your own dimensions into the map generator directly; I think the game simply asks you. The product of the X axis and the Y axis must be below 10,000; the simplest way to make this is 100 by 100. Doesn’t the game prompt “custom” or something like that when it asks you for a map size? Input 100x100 or any other divisors of 100.

I know, but I’m asking if there’s a way to make the map bigger again, like 200x200 for example?

Google it; there’s some discussion out there. I have no idea if any of it is helpful or easy, but people seem to be discussing it.