Set in 14th century Aquitaine, France during the Hundred Years’ War, the game focuses on the plight of Amicia de Rune and her ill brother Hugo as they flee from soldiers of the French Inquisition and from hordes of rats that are spreading the black plague.
The player controls Amicia, using a combination of stealth and limited tools to hide from, distract, or knock out soldiers, evade rat hordes, and solve puzzles, incorporating elements of survival horror games.