Over Snow, By Winter Sown is a small supplement for Under Hill, By Water that includes additional Worrisome Things, Current Events, Complications, and NPCs that you can use for your game of Under Hill, by Water. Some of the events and NPCs are influenced by Yuletide themes and Tolkien's Letters to Father Christmas.

My friend Seth Dodge did all of the artwork for this because he enjoyed the concept and the game so much, and it's worth downloading just to see what Seth has done.