Crusader Kings II is a grand strategy game from Paradox Interactive that is set during the height of Medieval times. It focuses on expanding your empire across Europe using war, marriage and assassinations. It is a great game and I highly recommend it, and recently Paradox released the Old Gods expansion. The trailer below gives you quite the whimsical look at the game, but realize that while their are beards, it is not as extreme as the trailer suggests.
by, Bobby Marquardt