Dive into the Unknown Depths
of an Alien Ocean World

Explore mysterious underwater ruins, pilot advanced submarines, and survive in a breathtaking sci-fi ocean world where every dive is a discovery into new secrets

Why I Thalassa is Different

🌊 Living Ocean Ecosystem

Dive into a living ocean ecosystem where everything is alive. The mechanical wildlife roams freely, ancient ruins are constantly shifting, and every dive is a unique experience.

🚢 True Submarine Simulation

Command state-of-the-art submarines that simulate real-world physics, offering unparalleled levels of customization. Learn the intricacies of sonar, manage your oxygen supply, and feel the pressure of the ocean above you.

🏗️ Build Your Underwater Empire

Build your own underwater empire, establish your own research stations, and create your very own sanctuary in the depths of the ocean. The ocean is your playground, and you are your own ruler.

🌍 Procedural Mystery

Every time you dive into the ocean, you will discover something new. The procedurally generated ocean ensures that you will always have something to uncover, something to battle, and something to discover.

Explore the Depths

From submarines to mysterious biomechanical creatures, discover everything that awaits you in this alien ocean.

Orpheus Seafloor Rover

🚗 Orpheus Rover

Ground vehicle for seafloor exploration

NPC Trader Character

🧑 NPC Trader

Interact with inhabitants of the deep

Scout Drone

🤖 Scout Drone

Deploy drones to map unknown territories

Join Thousands of Players Ready to Explore

🌊 Stay Updated on the Journey

Get exclusive updates, behind-the-scenes content, and be the first to know about beta testing opportunities!

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23 Development Updates

Follow the complete development journey of I Thalassa. Get monthly updates with behind-the-scenes content, new features, and exclusive previews.

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