Kamigami Battles: River of Souls is a standalone game and the first set for Kamigami Battles: Battle of the Nine Realms. The gameplay remains mostly the same as you play the role of a great God or a team of Gods, defending your reign from rival Gods by using the warriors and disciples loyal to you. However, in this version each player chooses to be a God of Egyptian or Babylonian Mythology and uses that God to take control of the cosmos.
 
(from BoardGameGeek)