King of Kings III is a free-to-play fantasy MMO published by gamigo, and differentiates itself from the crop by offering players a unique take on guilds. In King of Kings III, players form guilds, who can then be banded together with other guilds to form larger legions with the ultimate goal of establishing their own kingdom as the result of an epic quest. Players also contribute to the level of their guild, which earns the guild access to additional features.

On an individual level, King of Kings III offers players a few basic classes with sub-class specializations becoming available as players progress.

Players can also design their own houses and cities within King of Kings III, and PvP in the form of large-scale RvR is also available.