The AC Game based in my dreamsetting, Austria and Bavaria between 1880s and 1914. Vienna, Salzburg, Munich, a mountainous region around Salzburg, a foresty region around Vienna and a lakes and hill style region around Munich, interconnecting rivers, roads, etc. Great focus on a Economy System with trade routes and maybe even a micromanagement game within a game (think motherbase in MGS, or much more elaborate system from the homestead in AC3), rest just not too fancy more kind of "old AC formula" style gameplay in the cities (at that time almost every famous landmark in those cities as they are known today is built) and a decent cast of celebs: Ludwig II. (his assasination may be a key plot point), Empress Sissi and her hubby, Bismarck, young Albert Einstein, maybe a Heir of Wagner, etc...