Catan Geographies: Austria, a.k.a. Die Siedler von Catan: Österreich Edition, is the fourth in a series of regional map expansions for the venerable Settlers of Catan line.
The rules of the Austria Edition are closely to those of standard Catan, with a few departures to keep things interesting. Players may build cities only in the round intersections denoting actual cities. Because some of the cities are only one hexside apart, the spacing rule requiring two roads between settlements is not in effect. Roads can be built only on the printed spaces; when a space is printed in red, then this road is equal to a trading-harbor (3:1 trading)