Legends of Atlantis

Once a dominant and advanced naval power, the great island nation of Atlantis was inhabited by half-god, half-humans who enjoyed a lush, rich life in a society where technology and magic were one.

That is until a brutal earthquake caused the island to be swallowed by a wrathful ocean. Being incredibly advanced, the Atlanteans used their technology and demigod powers to accelerate their evolution to survive and flourish underwater.