Explore the vast uncharted mysteries of “The Rain” an incoming solar-system spanning cloud of rock, ice, metal, and other asteroids containing precious materials. This creates a boundless opportunity for wealth, and this is where you come in. In your role as sounding officer onboard Ptolemy Station, you are tasked with launching sub-etheric reconnaissance rockets into increasingly challenging gravity fields of iceteroids, theophosphorus, and quicksand clouds within The Rain in order to chart its vast riches.