US billionaire set to take delivery of $400,000,000 superyacht he wants to use to honor people, not to flaunt wealth

The superyacht scene just got a major shake-up, because Gabe Newell, co-founder of Valve, isn’t your usual billionaire boat owner.

Known for creating gaming icons like Half-Life, Portal, and the Steam platform, Newell has spent the last decade quietly living in New Zealand, far from the Silicon Valley spotlight.

Now, the famously humble tech mogul is turning heads again with his new 364-foot superyacht, Leviathan.

But unlike the flashy superyachts of other billionaires, this one was built to celebrate people, not possessions.

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Crew members invited to help design it

Launched by Dutch builder Oceanco in August 2025, Leviathan has just entered sea trials off Stellendam.

The $400 million vessel reflects a radical rethink of what luxury at sea can mean.

Instead of being a monument to wealth, it’s a floating ecosystem built around collaboration, comfort, and purpose.

From the earliest design stages, crew members were invited to help shape the superyacht, ensuring it works as beautifully for them as it does for guests.

Gone are the glossy wooden decks and high-maintenance finishes.

In their place are durable composite decks, honed stone, and natural materials that require less upkeep.

This results in a ship that’s easier to run, quieter to live on, and more connected to the ocean through sweeping glass walls and open layouts.

Small touches like a basketball hoop on the upper deck is a surprisingly down-to-earth addition to the superyacht, which usually hosts luxuries like helipads instead.

The Leviathan is barely smaller than Jeff Bezo’s superyacht

At 364 feet long and about 5,000 gross tons, Leviathan ranks among Oceanco’s largest ever, just behind Jeff Bezo’s $500 million superyacht, the Koru, which is too large for most ports.

It’s powered by a diesel-electric propulsion system paired with a large battery array, allowing for silent, low-emission cruising and smooth operation.

Waste-heat recovery and advanced water treatment systems reinforce its sustainable focus.

And true to Gabe Newell’s lifelong love of technology and exploration, Leviathan isn’t just a pleasure craft, but also a platform for science.

Onboard facilities will support research and collaboration, reflecting Newell’s belief that innovation thrives in shared spaces.

To honor that spirit, a glass wall inside the main staircase lists the names of more than 2,000 people who helped build her.

This is a pretty fitting tribute from the co-founder of Valve, who believes the real power-up is people working together.

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