Until Dawn is an interactive drama survival horror video game. It was originally planned as a first-person game for the PlayStation 3's motion controller PlayStation Move, but the motion controls were later dropped when it became a PlayStation 4 exclusive game. Until Dawn is designed to be played multiple times, as players will miss out on quite a bit of content with a single playthrough. Each will last about nine hours in length and the game mechanics utilize a new in-game system called the "Butterfly Effect" in which any choice of action by the player may cause unforeseen consequences later on. For example, locating a weapon in an earlier chapter may allow the player to pick it up down the line when a chase scene leads back to the same room. Throughout the game, players will make diffic