Both games are part of the over all Legacy of Kain where Soul Reaver is the story of Raziel and Blood Omen is Kain's. Defiance is a Bridge between the events of Soul Reaver 2 and Blood Omen 2. There were additional games planned to finalize the story utilizing the events of Blood Omen 2 and after. But Edios was bought by Square-Enix and Amy Henning along with other key members of the Kain series team have since left Crystal Dynamics.