All players who join a nation after the King become ordinary players.
They can buy the units that the King recruits and puts up for sale, or purchase them freely on the marketplace.
Each player is governed by his or her nation relative to the daily production rewards he or she will receive, the map visibility available, the technologies discovered by the nation, and the type of units the nation makes available.
The player is free to move his or her units as he or she sees fit, carry out any type of attack he or she can, and build as many cities when and where he or she wishes, if the general game conditions permit.