Populous: The Beginning: Undiscovered Worlds

[From the manual]:

The great shaman has left this plane and transcended into godhood. In her wake the Dakini, Matak and Chumara tribes are in disarray - their own shaman robbed them of the opportunity of immortality. Mad with revenge, the tribes vow to smite down the remains of your tribe - but they underestimate your power. As Imala, the new spiritual leader of your tribe, you must return balance to the universe - proving yourself as the rightful heir to the devastating powers bestowed upon you by the great shaman.