Age of Conquest III contains maps from all over the world including Europe, North America, Asia, Africa, a World Map and many more. Scenarios range from ancient to modern times. The game features simple building options such as construction of fortifications and watch towers. A player governs over military strategy as well as income and spending. Diplomatic functions available are alliances, peace treaties, cease-fires and vassalage. An integrated map editor can be used to create custom maps and upload them to a central repository for other people to enjoy.