I want to change the Natural Resources rules in my game thats already started can I?
sorry but i couldnt find the answer?

There are some save game editors, but I don't know if they are able to change that. Check out the utilities forum.

Btw, welcome to CFC [party]

Nope i hae tried as many of the save game editors that ive found and not one of them does
Another option is if somebody teells me how i could read and write save games by telling me how to unencrypt and rencrypt them