The Verge is a dangerous place. Piracy, corporate warfare, the bitter rivalries of stellar nations, and an implacable alien menace threaten dozens of worlds and billions of people. But at the heart of all this chaos is a troubled sanctuary: the Aegis system. Dominated by the beautiful water world of Bluefall, Aegis is a place where the great powers of human space marshal their forces against myriad threats. But ambitious nations and desperate factions covet this refuge, for it occupies the most important strategic site in the Verge. The Regency government maintains Bluefall's independence against a storm of challenges. System Guide to Aegis expands the information available on this important system, including: The secret explanation of the Vanishing; The staggering truth behind the mysterious Deepfallen; New technology and equipment suitable for use in any setting; The "Deep Cover" adventure, in which player characters dive into the intrigues of the Regency, the Thulden Empire, and other powers beneath the oceans of Bluefall. Designed for a STAR*DRIVE campaign using the ALTERNITY Science Fiction Roleplaying Game rules.