A free app for Android, by Moksha Development.

Peasant Empire is a 3D RPG survival simulator, in which the player can control a peasant character in the Middle Ages. You can live your life in a medieval Russian village and even build your own farm. You will have to manage your resources, do the most important and critical tasks, and make decisions. All of this is based on real historical data and events. You can interact with other characters, trade, and fight.

You will have to do a number of things to survive, such as:

Grow crops, gather resources, build and improve your farm, and more.