POLARIS The Roleplaying Game Core Rulebook Set (Hard Cover)The world aboveground has become uninhabitable, humankind was forced to flee from the surface and find shelter in the seas. They are now trying to survive in this hostile environment. Dealing with the species' degeneration, perpetual wars, monsters and very limited ressources. And there is this great mystery that prevails: the Polaris Effect POLARIS is a french tabletop RPG, set in an post apocalyptic sci fi atmosphere, where survival is key.