"Until Dawn is designed to be replayed multiple times as players will not be able to understand the full story with only just one playthrough. Each playthrough will last about 9 hours in length and the game mechanics will utilize a new in-game system called the “Butterfly Effect” in which any choice of action by the player may cause major unforeseen consequences later on. Throughout the game players will make difficult decisions during ethical or moral dilemmas such as to sacrifice one character in order to save another as one example. The “Butterfly Effect” system blurs the line between right and wrong decisions and it is possible for players to keep all eight characters alive through to having them all killed, allowing for many different paths and scenarios players can take and seemingly endless multiple endings. Until Dawn will have a strict auto-save system to prevent players from reloading a previous save file to an earlier point in the game if they regret an in-game decision that they have made."
I created a thread about this game about 3 years ago, when it was headed to the PS3 and would be controlled with the Move. A lot has changed since then. Its now a PS4 exclusive and will be played with a controller. A lot of other stuff has been changed as well.
This game looks incredible. Not only are the graphics pretty great, the butterfly system looks like a lot of fun. I know a few of you here are not big fans of horror, so this game won't be for you, but as a person who grew up on cheesy slashers, this absolutely has a chance to be my game of the year. It's got its worked cut out for it, with Arkham Knight and Fallout 4 coming the same year... but who knows. Anything is possible. Haha.