The "Legacy of Kain" is a series of action-adventure video games developed by Crystal Dynamics and Silicon Knights. The franchise follows the story of Kain, a vampire who seeks to reclaim his lost kingdom while grappling with themes of fate, power, and redemption. Players navigate a dark fantasy world filled with complex characters and moral dilemmas. The series features several main titles, including Blood Omen: Legacy of Kain, Legacy of Kain: Soul Reaver, and Legacy of Kain: Defiance. Each game explores the intertwined destinies of Kain and Raziel, a former vampire turned wraith, as they confront their pasts and the consequences of their actions in a richly developed narrative.