Poseidon Grepolis

Poseidon is the god of the ocean. He lives in a crystal palace deep below the sea. When he is in a good humor, Poseidon creates new islands and lets the ocean be still and navigable. When he gets angry, he plunges his trident into the ground, causing earthquakes, floods, and making ships sink.

Mythical Units
Cyclops : Cyclops are one-eyed giants who throw large boulders at their foes. They can be defended against with sharp weapons.

Hydra : There is no wave, no storm, no enemy than a seafarer fears more than a hydra. The nine-headed monster rises from the water, crushes entire ships with its mouths and devours its crew.