I’ve decided to publish my personal Building Upgrade Resources Calculator for King of Avalon: Dragon Warfare which can also be used for Guns of Glory. I made this tool to quickly identify how many resource items I have in my inventory and how much more resources were needed for a specific building upgrade to eliminate unnecessary amount of resource items being opened. Hope you find this tool helpful.
Don’t forget to try out the Resource Production Estimator to work out your city’s resource production capabilities.