Lord of the Rings Mount and Blade Simulator

This is an episode at the end of the Third Age that should not have happened. During this period, the cunning Lord Sauron was recovering his strength and building up his power in Dol Guldur; the great thief Bilbo Baggins was living a good life with six or seven meals a day at Bag End; the sad "King Under the Mountain" Thorin Oakenshield was leading his people in pursuit of a better life in the Blue Mountains; Thranduil, the king of the forest elves, was becoming more and more reclusive, wearing a crown of flowers for all seasons; the wise grey-robed wizard Gandalf was aware of the danger in Middle-earth and the revival of the power of darkness, and was warning everyone that his "protection" would soon descend upon Durin's clan; and our protagonist began his story in a meteor.