I don’t believe any cheats exist. Fog of war only covers the actions of other nations. Once you’ve explored an area you’ll always be able to see if resources exist there. As for the number of resource nodes, it depends on the number of opponents.

This one of the things current game dev's overlook and can be a factor in a great or average game.
Like Grand Theft Auto San Andres you'd do a couple turns press a couple buttons, full hp full armor all weapons, change character etc.

The GTAs like 5, can't do can't do cheats in them. These GTAs don't last long as the OG's.

Anyways Civilization is the same, 2 had a option to click and enable cheats, simple as that and tons of ways to make the game interesting.

Civ 3 I would there would be cheats more than what i see on gamefaqs, but all it has is
Enter Leemur as a leader name and get 100,000 gold and PW

I really enjoy civ 2 btw, unfortunate part is its a bit too old, I think civ2 if compared to a gaming console would be an early playstation game, the graphics are a bit too 8bit for me. or 16 bit. I still go back to it, still the best of the series. Looking at it now, graphics is aged but they did really well for what they had to work with, its not that bad but its noticeable difference here in 2025.