Premise: Tigris and Euphrates (German: Euphrat und Tigris ) is a German-style strategy board game designed by Reiner Knizia and first published in 1997 by Hans im Glück. Before its publication, it was highly anticipated by German gamers hearing rumors of a "gamer's game" designed by Knizia. "Tigris and Euphrates" won first prize in the 1998 Deutscher Spiele Preis. A card game version was released in 2005.
Hypothesis: The card game version of Tigris and Euphrates also won many prizes.