Banished

Banished has no skill trees. Any structure can be built at any time, provided that your people have collected the resources to do so. There is no money. Instead, your hard-earned resources can be bartered away with the arrival of trade vessels. These merchants are the key to adding livestock and annual crops to the townspeople’s diet; however, their lengthy trade route comes with the risk of bringing illnesses from abroad.
There are twenty different occupations that the people in the city can perform from farming, hunting, and blacksmithing, to mining, teaching, and healing. No single strategy will succeed for every town. Some resources may be more scarce from one map to the next. The player can choose to replant forests, mine for iron, and quarry for rock, but all these choices require setting aside space into which you cannot expand.
The success or failure of a town depends on the appropriate management of risks and resources.