Several years after the events of Atomic Heart, the world stands on the brink of a new threat. A mysterious giant levitating structure known as The Cube has become the epicenter of increasingly dangerous phenomena, and in order to save humanity, players must plunge deep into its secrets—and survive. On the surface, it’s a geometrically perfect object, and in truth it’s an anomalous, shifting place swarming with vicious enemies. But most terrifying of all is the equation hidden at the Cube’s core. Deciphering the equation can save humanity; failing to do so means extinction.