Gareth Birch graphics.
Stefan Hartel for a map of Macedonia.
CurtSibling for some icon art (Barracks, Grain Depot, Marketplace, Library, Citadel, City walls, Workshop, Aqueduct, Sewer System, Seaport, Harbor, Fabian Strategy and Engineering tech tree icon). Also many of the people graphics.
Sarsstock for the title picture.
Berndt Brosing for the naval and siege units, and the city graphics.
Favoured Flight for various terrain graphics.