Caylus is a strategy oriented, German-style board game designed by William Attia and independently published in 2005 by Ystari in France and England, and Rio Grande Games in North America. Caylus has a mix of building, producing, planning, and bargaining — without direct conflict or dice-rolling mechanics. An iOS version of Caylus that can be played on the iPhone and iPad was launched on January 16, 2012. Source: Wikipedia, "Caylus", available under the CC-BY-SA License.