As the pressure rises and the exodus through the ring gates continues, opportunities abound for shrewd crews willing to take risks on Earth, Mars, and in The Belt. The changes brought about by the discovery of the protomolecule continue to disrupt the status quo, and tensions between the factions are white hot. Sol System provides information on the governments, corporations, and factions that vie for power and influence, along with expanded rules for trade and running corporations and other organizations. For players, there is new equipment and technology, including cyber and bioaugmentation, and expanded rules for Belter, Earther, and Martian characters. This beautifully illustrated sourcebook opens new ways to play and build characters, and exciting new details on humanity's homes. Sol System also offers a plethora of new adventure opportunities--political intrigue, spies, strange cults!--and sets the stage for the forthcoming Free Navy Conflict.