This game is a resources hunger, maybe this is the way of the developer chosen to "prolong" their game.
if you want to upgrade your resource building from lv5 to lv6 it will take 2k resource but your building only can generate 500 every few hour, so it will take up a day just to collect those resource needed to upgrade 1 particular building, the pace is extremely slow.
unless you play until certain level where you can start building a second resource building, if not you are stuck with that extremely slow pace. and this not a rpg game you cant really "FARM" or "HUNT" for resources,even if it does there is very little you can do with your low level troops.
it put a great deal of your CASH or TIME before you can actually play it "normally"
P.S please upgrade your resource building before you can actually "PLAY" this game and expect every upgrade is this game to be "RESOURCEFUL".
I advise you to read and follow the Beginners Guide to Iron Rage of our community wiki, you will find useful tips for you make a good start https://ironrage.fandom.com/wiki/A_Beginners_Guide_to_Iron_Rage
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I advise you to read and follow the Beginners Guide to Iron Rage of our community wiki, you will find useful tips for you make a good start https://ironrage.fandom.com/wiki/A_Beginners_Guide_to_Iron_Rage