"In the Footsteps of Robertus" is a puzzle video game for tablets and smartphones that will test your mind. Discover the priory of Saint-Arnoult (14800), in Calvados, the first Cluniac site in Normandy. In this exciting adventure, you will meet Robertus, one of the founders of the priory. The latter has been wandering within the building for nearly a millennium already, and your mission is therefore to lend him a hand. During this quest, the latter will introduce you to the site, from a historical and cultural point of view.