Expanze is a free turn-base strategy game inspired by The Settlers of Catan board game. You build towns and roads on a hexagonal map. In the towns you can build common buildings (a mine, a wind mill, a sawmill etc.) to get sources from near hexagons or you can build one of 3 special buildings (a monastery, a market, a fort) which can help you spread your island impact by inventing upgrades in them. The goals are different in each scenario -> different strategies you will need to use.
Short ingame video of game gameplay.