We have different currencies in the world. The most important thing is their value. US dollar is a very powerful currency and for example Zimbabwean dollar is on of the weakest.

I suggest in this game the value of each country currency differs from others.
The more a country has region and do production the more valuable its currency, Then we can do exchange if necessary (in buying gold from currency market for example).

It may sound funny and ridiculous to some players but it is very important that currencies differ in value!!! and it will be fun too!

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