I added new tool to Rise of Kingdom Calculator site.
I am happy to present Rise of Kingdoms Research Calculator.
The tool helps calculate time and resources you need to upgrade researches.
Also the site support English, Russian, Chinese, French and Thai languages.
I am looking for users feedback. Let me know if something can be improved.
I would be happy to chat and collaborate with you if you have any ideas about the tool that can be added to the site.