P.T. (initialism for "playable teaser") is a psychological horror game developed by Kojima Productions, under the pseudonym "7780s Studio", and published by Konami. It was directed and designed by Hideo Kojima, in collaboration with filmmaker Guillermo del Toro.

Released for the PlayStation 4 on August 12, 2014 as a free download on the PlayStation Network, P.T. served as an interactive teaser for the game Silent Hills, an installment in the Silent Hill series. After the cancellation of Silent Hills, Konami removed P.T. from the PlayStation Store and made it impossible to reinstall. The decision prompted criticism, fan efforts to allow P.T. to be re-downloaded, and fan remakes.

P.T. received acclaim for its direction, visuals and visual storytelling, and its supernatural horror, while its puzzles drew mixed responses.

Unlike the third-person perspective in Silent Hill games, P.T. uses a first-person perspective, which centers on an unknown protagonist, controlled by the player, who awakens in a haunted suburban house and experiences supernatural occurrences. Available areas to explore in the home consist of an L-shaped corridor with two rooms adjacent to it: a bathroom, and a staircase which leads to the room in which the player starts a loop, or a continuous reincarnation of the corridor. The only actions the player can use are walking and zooming. To progress, the player must investigate frightening events and solve cryptic puzzles. Each time a loop is successfully completed, changes appear in the corridor. Additionally, the player encounters a hostile ghost named Lisa. If she catches the protagonist, the player has a random chance of triggering a jump scare when turning the camera horizontally and is sent back to the beginning of the current loop.

After the player solves the final puzzle, a cryptic and unrevealed puzzle that allows the player to escape, a trailer reveals that P.T. is a "playable teaser" for a new game in the Silent Hill series, called Silent Hills, directed by Hideo Kojima and Guillermo del Toro, with the protagonist portrayed by Norman Reedus.