Not So Middle Ages

Not So Middle Ages is a text quiz where you play as a simple cubicle rat who has traveled back in time. Your hero knows nothing and can't do anything, but he got his smartphone with Encyclopedia of Applied Recipes installed on it. Build advanced (by medieval standards) devices to amaze the villagers and even to alter the course of history. But remember, the battery goes down as you use your phone, and there is no way you can recharge it... Unless you build a voltaic pile.