Poseidon: Zeus Official Expansion May 2026

New deities join the pantheon—and they aren't always friendly.

The Wine-Dark Sea Calls. You have mastered the heights of Olympus; now, it is time to conquer the depths. Poseidon is the official expansion to the legendary city-builder Zeus: Master of Olympus , shifting the focus from the rugged mainland to the sprawling maritime empire of Atlantis. New Campaign: The Birth of Atlantis Poseidon: Zeus Official Expansion

Build a sanctuary to the Earth-Shaker to ensure calm seas and bountiful fishing. New Rivals: Face the wrath of Hera or Atlas. New deities join the pantheon—and they aren't always