Abtei der wandernden Bücher (1993)

This is not only a game, but a piece of art. All materials are hand-crafted and top quality. This comes at a price of over $3000.
The gameplay is inspired by "The Name of the Rose": One player writes down a word, breaks it down in several parts and distributes them over several books. The other players - hindered by the word player - are trying to hunt down the books and find out the word. If they cannot do this within game time, the creator wins.
The setting is a medieval monastery.