Build a sanctuary to the Earth-Shaker to ensure calm seas and bountiful fishing. New Rivals: Face the wrath of Hera or Atlas.

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

Command new warships and protect your trade routes from the terrors of the deep. Build massive Frigates to dominate the Mediterranean. Gods and Monsters

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

Construct Libraries , Universities , and Laboratories . The Atlanteans prioritize logic and discovery, unlocking new ways to optimize your city’s efficiency.

The expansion includes a robust , allowing you to craft your own Greek myths. Design custom maps, set complex victory conditions, and script your own divine interventions to share with the community.

Should we focus more on the of the Atlantis campaign or dive into the mechanical changes to trade and industry?

Poseidon: Zeus Official Expansion May 2026

Build a sanctuary to the Earth-Shaker to ensure calm seas and bountiful fishing. New Rivals: Face the wrath of Hera or Atlas.

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

Command new warships and protect your trade routes from the terrors of the deep. Build massive Frigates to dominate the Mediterranean. Gods and Monsters Build a sanctuary to the Earth-Shaker to ensure

New deities join the pantheon—and they aren't always friendly. You have mastered the heights of Olympus; now,

Construct Libraries , Universities , and Laboratories . The Atlanteans prioritize logic and discovery, unlocking new ways to optimize your city’s efficiency.

The expansion includes a robust , allowing you to craft your own Greek myths. Design custom maps, set complex victory conditions, and script your own divine interventions to share with the community.

Should we focus more on the of the Atlantis campaign or dive into the mechanical changes to trade and industry?