Don't Knock Twice is a single-player first-person survival horror game with support for virtual reality headsets. The player explores a large manor house in search of a missing daughter, interacting with almost every object and following hints delivered through an in-game mobile phone. A demonic witch can appear without warning at any point, keeping the player under constant threat. Light combat and item elements are included, such as using an axe on doors and combining objects into makeshift tools. It shares its name with, and is loosely based on, the film of the same title.