The game is set in Poland and draws heavily from the book by Norman Davies. It covers the period from about 1400 to 1790, which is covered by vol 1 of the two books. Each player represents a Polish magnate. There are various ways of scoring victory points, owning land, religious activity, winning battles, etc. Surrounding Poland are her numerous enemies, who may or may not decide to attack Poland. It is up to the players how well they defend the country. The way the enemies work is that they change their strength to match historical changes.