Vampyr is an action role-playing game played from a third-person view. The player controls the game’s protagonist Jonathan E. Reid, a vampire doctor whose thirst for blood compels him to kill innocent people. To do this successfully, he must gather information about his targets—study and change their habits, collect clues and maintain certain relationships by communicating with the inhabitants of London, which serves as a fictionalised semi-open world built around hubs of neighbourhoods tethered to other interlinking areas. It is possible to finish the game without taking a life, which best preserves the character’s cover as a doctor but leaves him incapable of levelling up. Killing no one unlocks one of four different endings in the game.