Gold is the premium currency.
There are several ways to get gold:
It depend on the number of road. You can earn up to 12 gold a day.
By completing objectives, you can earn gold.
Around two spies a day will appear in your castle, which you can tap on to catch and gain 5 gold per spy caught. Spies will appear as single troops walking around (not in pairs).
Speeding up the build, training or hero's recovery times
If should be counted as a Formula,
For 1st hour, it cost 40 gold.
For the remaining hours, add 20 each. ( N = hours, Gold needed = (N-1) * 20 + 40 )
|Gold needed||Save Time|
You can buy other resources with gold at the Market.