Gabe Newell’s game-changing Oceanco gigayacht has officially come online. 

The 364-foot Leviathan was delivered to the billionaire gaming visionary in November 2025, but was recently captured cruising the Bahamas by photographer Guillaume Plisson. The images provide the first real look at the unconventional interior, which is the product of some of the finest minds in the business.

Newell, who revolutionized PC gaming by creating hits like Half-Life, cofounding Valve Corporation, and launching Steam, joined forces with YTMC, Y.CO, the Oceanco design team, Lateral Naval Architects, Mark Berryman Design, and thousands of other experts to bring Leviathan to fruition. The names of the nearly 3,000 people involved in the build are engraved on a glass panel within the main staircase, in fact.

Newell, who acquired Oceanco in April 2025, wanted the yacht to feel like a community and be enjoyable for all. That kind of democratization of luxury is evident in Berryman’s interior, with a layout that combines guests and crew rather than separates them. The typical main salon has been eschewed in favor of a large communal dining space for up to 54 people. (There is accommodation for up to 26 guests and 37 crew onboard.) In addition, locations typically reserved for guests are also open to the crew, such as the gaming lounge, basketball court, and sun deck. 

“Leviathan represents a new philosophy of yachting—one that places greater purpose at the heart of design, ownership and operations,” Deniz de Koningh, project director at Oceanco, said in a statement. “The owner’s vision sets a forward-thinking example of how yachts can be built and used with intent.”

Leviathan is also designed to be very low-maintenance. The off-white exterior and synthetic handrails require less cleaning, for example. That reduces the amount of time the crew spends on routine maintenance, freeing them up for more important tasks. “The goal was to consider where the most valuable experiences occur for the community of people onboard,” explains Newell. “By increasing crew productivity, we can enable them to focus more on engaging with guests and creating meaningful experiences for everyone.”

Leviathan will be used by Newell’s marine research organization, Inkfish, for deep-sea exploration and scientific mapping, with a fully equipped dive center, laboratory, and hospital replacing the typical beach club. The yacht is equipped with a hybrid diesel-electric propulsion system, too, reducing the carbon emissions on said expeditions. “Yachts have great potential to serve as platforms for scientific research,” adds Newell. “It’s about recognizing that you’re part of a broader community and ensuring the yacht’s presence adds value to the communities around it.”

Click here to see more photos of Leviathan.