KoC Mercenaries

Mercenaries in Kings of Chaos do not give you gold. However, they can save you a lot of soldiers, either defense or attack, since mercenaries are the ones that die first in battle, followed by untrained soldiers, and finally trained soldiers. Although they cost thousands of gold per mercenary depending on whether you purchase them as trained or untrained, the fact that mercenaries save you soldiers means that you save more gold-producing units. Take note, though, that you can not always buy mercenaries. The availability of these units depend on the total size of your army. Remember, you may have the gold to buy yourself a defense mercenary, for instance, it does not always mean there are available units for you to buy.

One tip: if you always use your attack turns, focus on buying attack mercenaries and training your untrained soldiers into defense soldiers. That way, you won't be losing much of your gold-producing trained attack soldiers. On the other hand, if you rarely use your attack turns and you're more of the defense-type, focus on buying defense mercenaries and training your untrained soldiers into attack soldiers.

In case you're wondering, there are no spy/sentry mercenaries. So there you go.