The butterfly effect is a funny thing. Earlier in the year, Sony executives sat in an office and decided to skip Gamescom 2015, blissfully unaware of the fact that we'd be subjected to a busy but still boring week. Until Dawn deals with these decisions in a different way, as you're pursued by a serial killer who looks like the star member of a Slipknot cover band, forcing you to make decisions about how to escape.
Every choice will have consequences, leading to changes in the story. For example, saying the wrong thing may prompt a premature death – or it may keep you alive for that little bit longer. It's this dynamic that developer Supermassive Games is hanging its hat on, hinting at a near limitless number of plot variations. Of course, exactly how well all of these different paths are handled will ultimately determine how successful the release turns out to be.