There is no tutorial, objectives or quests. It is mostly about what you want to do in this fantasy village. If you want to get closer to PNJs, work as an adventurer. To build you need to collect resources and then press U it will open a menu with various options. To fight you need to get close enough with the enemy and then press E . Globally, E is your everything button, it helps you interact with everything.
For the IA files they are in \Silverpine 1.0.6\Silverpine_Data\StreamingAssets\KoboldCP