Gold is the ever-present, ever-needed resource of any Might and Magic and Heroes of Might and Magic game. Wherein Might and Magic games it simply serves as the in-game currency to purchase items for your inventory or to upgrade skills, the Heroes series expanded upon this concept.
In this spin-off series, gold allows players to purchase buildings, units, artifacts, resources at the market, and various other things.
The income depends on the town type, and if the town contains a town hall, or a capitol. Some heroes have a bonus, allowing for more income. This can also be increased if the heroes hold artifacts that also give gold.