 Ascension introduced online multiplayer to the series for both competitive and cooperative play . Up to eight players on two teams of two to four players ( or a four to eight player deathmatch ) battle for control of a map in order to earn rewards from the gods . Players can also fight each other in one @-@ on @-@ one matches . Players must sell their champion 's soul to either Zeus , Hades , Ares , or Poseidon , which allows players to try different weapons , armor sets , and powers inspired by the god of their choice , and extras can be unlocked . 
