A leviathan, by definition, is something monstrously huge, powerful or formidable. It is therefore fitting that Leviathan will be the largest yacht at the 2026 Monaco Yacht Show. The 364-foot Oceanco vessel, worth $500 million, could also be the most expensive yacht appearing at the event. Interestingly, this behemoth, whose presence would be enough to dominate the yacht show on its own, is not coming alone. The brand-new Leviathan will be accompanied by its $150 million companion vessel, Draak. The latter was formerly known as Tranquility and, before that, Equanimity. Following billionaire Gabe Newell’s acquisition of the yacht in 2023, it became his floating home and office.
Together, the two vessels form a $650 million fleet that is likely to steal the spotlight at the prestigious Monaco Yacht Show, confirmed Oceanco. Their presence will also place Oceanco’s evolving direction, technical prowess and unconventional approach to yacht ownership firmly on display. Only one yacht interrupts the numerical sequence between Leviathan and Draak. The 336-foot Lürssen beauty Nixie is currently the second-longest yacht confirmed for the show, placing it behind the 364-foot Leviathan but ahead of the 305-foot Draak. Even so, seeing more than half a billion dollars’ worth of Oceanco machinery assembled under one owner should make an imposing impression at Port Hercule.
Leviathan has an internal volume of 4,970 GT, while Draak measures 2,951 GT. Their combined volume of 7,921 GT slightly exceeds the 7,690 GT of Golden Odyssey, the largest yacht ever displayed at the Monaco Yacht Show by volume. Admittedly, that comparison places two yachts against one, but it demonstrates the extraordinary physical scale of the fleet Newell is bringing to Monaco. The occasion will also mark the first time Oceanco has presented both a new build and a rebuilt yacht at the Monaco Yacht Show. “Every owner we work with brings a different vision, and every project challenges us in a different way,” says Marcel Onkenhout, CEO of Oceanco. “With collaboration guiding every decision, we are looking forward to showcasing two yachts at this year’s Monaco Yacht Show that truly reflect this ambition.”
Ambition is certainly one way to describe the fleet. Leviathan, Oceanco’s largest yacht by volume, was not created merely to advertise its billionaire owner’s financial status. Instead, it was designed to amplify Newell’s scientific, technological and philanthropic interests, particularly those associated with his marine research organization, Inkfish. Unlike a conventional floating mansion conceived principally around private luxury, Leviathan places collaboration, communal living and working spaces at the center of life aboard. Luxury and leisure remain abundant, but there is little room for complacency.
The main saloon, which aboard another superyacht might have hosted endless cocktail conversations, has instead become a communal dining space where guests and crew can eat, interact and exchange ideas together. Recreational facilities include a shared gaming lounge containing 15 high-performance gaming stations and two racing simulators, along with a basketball court and expansive sundeck.
Even the leisure spaces appear designed to encourage interaction, competition and creative thinking. Leviathan also carries a fully equipped dive center, a scientific laboratory, an onboard hospital and a 3D-printing workshop capable of producing replacement components at sea. Additional facilities support Inkfish researchers and extended marine expeditions, turning the yacht into something closer to a floating creative campus than a conventional pleasure craft.
Draak, on the other hand, exists to support the mothership in the most literal sense. After serving as Newell’s floating home and office under the name Tranquility, the yacht has emerged from an extensive Oceanco rebuild with a new identity and a considerably different set of responsibilities. Meaning “dragon” in Dutch, Draak has been transformed to support Leviathan, Inkfish expeditions and the fleet’s equipment-intensive activities. Its upper-deck helipad was removed so that large tenders, containers and specialist machinery could be handled on the deck below.
The former beach club and spa were replaced by a professional dive center, medical facilities and a hyperbaric chamber. The spirit of Leviathan has also been carried across to Draak. Its former main saloon is now a combined guest and crew dining room, while the deck above contains a novel “chef’s lab” intended for intimate dining, menu development and culinary training.
For Draak, the return to Monaco represents a full-circle moment nearly 12 years in the making. Originally launched as Equanimity, it was the largest motor yacht exhibited at the 2014 Monaco Yacht Show and received the event’s Finest New Yacht award. It now returns with a new name, a new owner and an entirely new purpose. Leviathan and Draak are listed at D02 and D01 on Quai Rainier III, allowing them to be viewed as a coordinated fleet. The 35th Monaco Yacht Show will run from September 23 to 26, 2026.
