The game starts on a rusty river (a reference to the games Rusty Lake series). Your goal - to swim away from the shore on the boat to the mysterious island that hosts the mysterious structure, consisting of forty-eight test rooms (a reference to the game Portal is present in the form of two portals and portal guns). In each of the 12 needed to guess the code in 12 rooms, simultaneously making decisions in various unusual situations, using a small number of mostly extracted artful way objects.