From the introduction: Causality is a game about paradox. Questions that have no answer. Conflicting truths. In it, you play a time traveller from a future that is on the verge of destruction. You’re sent back in time (usually against your will) to prevent or foster an event that led humanity to the grim future we ended up with. Every action you take will create a new reality, but each new reality you create becomes more and more unpredictable. When the laws of space and time crumble before you, can you keep your sanity intact long enough to save the future?