The Settlers III is a city-building game with real-time strategy elements belonging to The Settlers series developed by Blue Byte. The player is expected to construct and administer a settlement and expand its territory to defeat rival settlements and/or gain control of the map (or a predetermined part of it). The plot begins in heaven when the Unknown God summons Jupiter, Horus, and Ch’ih-yu and orders them to pick one man of the Roman, Egyptian, and Asian people who would lead the army against the two other peoples. The gods of the defeated peoples will be sentenced by the Unknown God to repaint the universe in white. The player can therefore choose one of the following nations in a sequence of 8 missions: Romans (easy level), Asians (medium level), or Egyptians (hard level).