# Leviathan (yacht)
**Leviathan** is a 111-meter (364 ft) diesel-electric superyacht built by the Dutch shipyard Oceanco and delivered on 12 November 2025 to [Gabe Newell](https://www.edgepedia.org/gabe-newell), the co-founder of Valve and founder of Steam[1](https://www.lateral.engineering/projects/leviathan/) • [2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco) • [3](https://www.pcgamer.com/gaming-industry/gabe-newell-caps-off-steam-machine-week-by-taking-delivery-of-a-new-usd500-million-superyacht-with-a-submarine-garage-on-board-hospital-and-15-gaming-pcs/). Built under the project name Y722, she was reported to cost around 500 million US dollars and, at delivery, ranked as the 50th largest yacht in the world[3](https://www.pcgamer.com/gaming-industry/gabe-newell-caps-off-steam-machine-week-by-taking-delivery-of-a-new-usd500-million-superyacht-with-a-submarine-garage-on-board-hospital-and-15-gaming-pcs/). The yacht combines high-end hospitality with scientific facilities, serving as a platform for Newell's marine research organization Inkfish[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/).
| Key fact | Detail |
|---|---|
| Length / beam / draft | 111 m (364 ft); 17.8 m (58 ft); 4.6 m[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco) |
| Gross tonnage | 4,970 GT[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco) |
| Propulsion | Diesel-electric with two ABB D0980P azipods and a 5.3 MWh battery pack supporting about ten hours of silent, emission-free running at anchor[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/) |
| Speed / range | 13 knots cruise, 17.6 knots top speed, 6,500 nautical mile range at cruise[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/) |
| Capacity | 12 guests and up to 43 crew, with a communal dining area for up to 56[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/) |
| Design team | Naval architecture by Lateral Naval Architects and Oceanco; exterior by Oceanco's in-house team; interiors by Mark Berryman Design[1](https://www.lateral.engineering/projects/leviathan/) • [4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/) |
| Delivery | 12 November 2025, at the end of the week Valve launched the Steam Machine[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco) • [3](https://www.pcgamer.com/gaming-industry/gabe-newell-caps-off-steam-machine-week-by-taking-delivery-of-a-new-usd500-million-superyacht-with-a-submarine-garage-on-board-hospital-and-15-gaming-pcs/) |
## Build history
Construction began with the keel laying on 15 August 2021 under the project name Oceanco Y722, built to [Lloyd's Register](https://www.edgepedia.org/lloyds-register) technical standards[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco). In May 2022 the stern was relocated to Oceanco's Zwijndrecht yard, and on 7 June 2023 the vessel emerged from the build shed for the first time, with the wraparound walkways, wide glazing, and tri-fold beach club that shape her profile already installed.[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco) [Outfitting](https://www.edgepedia.org/outfitting) continued at Alblasserdam ahead of the launch on 10 August 2025, followed by sea trials in the [North Sea](https://www.edgepedia.org/north-sea) in October 2025 and delivery on 12 November 2025[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco).
The original commissioning owner changed during the build. Newell, who had been a client of the yard during the project's development, acquired Oceanco in 2025, with [PC Gamer](https://www.edgepedia.org/pc-gamer) dating the purchase to August of that year[6](https://www.pressmare.it/it/comunicazione/press-mare/2026-05-05/oceanco-leviathan-prime-immagini-navigazione-layout-89751) • [7](https://www.pcgamer.com/games/gabe-newell-makes-surprise-appearance-in-an-ad-for-the-yacht-company-he-bought-last-year-riding-around-in-his-usd500-million-boat/). Under his direction the project was renamed [Leviathan](https://www.edgepedia.org/leviathan) and its program was reworked around a crew-centric and research-oriented brief[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/).
## Design and layout
Leviathan's hull comes from Lateral Naval Architects' DE-Series family, conceived to take full advantage of diesel-electric pod propulsion; Lee Archer, principal project manager at Lateral, described the platform as designed from first principles for propulsion integration, structural stiffness, roll period, and electrical architecture[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/). Oceanco and Lateral worked with the maritime research institute MARIN on model testing to refine comfort, stability, and acoustic behavior across speed ranges[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco).
**A crew-first layout.** The yacht's most distinctive feature is its reallocation of space between guests and crew. Portions of two decks normally reserved for owners and guests hold crew recreation areas, including a basketball hoop on the bridge deck, a regulation beer pong table and spa pool on the sundeck, and a communal mess for up to 56 people[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/) • [5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/). Interior designer Mark Berryman was asked to convert what would ordinarily be the main deck saloon into a crew mess[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/). The huge galley is organized in specialized stations and is intended to be used for training other chefs as well as cooking[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/).
The owner's brief also ruled out teak entirely, on cost, maintenance, and environmental grounds. Oceanco turned to the Dutch flooring specialist Bolidt, which developed and installed a patterned artificial deck in two tones of gray, with matching synthetic caprails[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/) • [5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/). Durable, easy-care materials such as honed stone and natural wool carpets were chosen to reduce upkeep, and full-height glass superstructure bulkheads replaced large painted sections[1](https://www.lateral.engineering/projects/leviathan/). As a tribute to the build's collaborative process, a full-height glass panel engraved with the names of more than 2,000 contributors stands in the main staircase[1](https://www.lateral.engineering/projects/leviathan/).
## Propulsion and performance
Leviathan's diesel-electric plant drives two ABB D0980P azipods drawing on a 5.3 megawatt-hour battery pack, which Oceanco says supports around ten hours of silent, emission-free running at anchor[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/). The diesel-electric layout moved the engine room further forward than usual on a yacht of this size, freeing the quietest part of the hull for guest suites and scientific facilities[2](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco).
The performance profile reflects the research brief rather than a speed-oriented one. Leviathan cruises at 13 knots and tops out at 17.6 knots, with a 6,500 nautical mile range at cruise[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/). Noise and vibration damping was described by Oceanco senior designer Patrick Casanova as one of the most ambitious targets the yard has set for a yacht this size[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/).
## Scientific role and the Kraken fleet
Leviathan serves the dual purposes of high-end hospitality and research laboratory[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/). The former beach club became a combination of relaxation and working area that includes a laboratory with a 3D printer and extensive diving facilities[4](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/). The hull also contains a garage for auxiliary boats and submersible vehicles, and the yacht carries an onboard hospital with resident medical staff, two gyms, and a roughly 250-square-meter beach club with spa and bar[3](https://www.pcgamer.com/gaming-industry/gabe-newell-caps-off-steam-machine-week-by-taking-delivery-of-a-new-usd500-million-superyacht-with-a-submarine-garage-on-board-hospital-and-15-gaming-pcs/) • [8](https://as.com/meristation/noticias/gabe-newell-estrena-steam-machine-y-su-nuevo-superyate-con-garaje-submarino-hospital-y-15-pcs-de-gran-potencia-f202511-n/). The yacht is reported to include 15 high-powered gaming PCs[3](https://www.pcgamer.com/gaming-industry/gabe-newell-caps-off-steam-machine-week-by-taking-delivery-of-a-new-usd500-million-superyacht-with-a-submarine-garage-on-board-hospital-and-15-gaming-pcs/).
The yacht operates within Newell's Inkfish marine research organization, which also runs other vessels and a submersible capable of reaching the ocean's greatest depths[8](https://as.com/meristation/noticias/gabe-newell-estrena-steam-machine-y-su-nuevo-superyate-con-garaje-submarino-hospital-y-15-pcs-de-gran-potencia-f202511-n/). Its working partner is Draak, a 92.8-meter Oceanco support vessel rebuilt from the 91.5-meter Y709 delivered in 2014, converted with cranes, a dive center, and a decompression chamber so it can operate alongside Leviathan[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/). Both vessels carry a matching gray hull scheme and were designed by the same Oceanco in-house Monaco team[5](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/).
## Public appearances and reception
Leviathan was displayed at the Monaco Yacht Show 2026 alongside Draak, where trade press framed her as a possible benchmark in yacht operations and design culture; SuperYachtNews noted that the Lürssen new build Nixie, at just over 102 meters, is about 1,600 GT smaller by volume despite being only nine meters shorter[9](https://www.superyachtnews.com/fleet/two-leviathans-of-the-deep-at-the-monaco-yacht-show). In July 2026 the yacht was sighted in the Esefjorden near Balestrand, Norway, accompanied by two other yachts[10](https://www.vg.no/nyheter/i/2po83q/gigayacht-paa-vestlandet-spektakulaert).
Oceanco's promotion of the yacht, including a video advertisement featuring Newell himself and photographs taken by Guillaume Plisson in the Bahamas, drew wide coverage in the gaming press[7](https://www.pcgamer.com/games/gabe-newell-makes-surprise-appearance-in-an-ad-for-the-yacht-company-he-bought-last-year-riding-around-in-his-usd500-million-boat/) • [11](https://www.pcgamer.com/gaming-industry/here-are-55-new-photos-of-gabe-newells-usd500-million-superyacht-for-your-peasant-eyes/). Oceanco project director Deniz de Koningh described Leviathan as representing "a new philosophy of yachting, one that places greater purpose at the heart of design, ownership, and operations"[11](https://www.pcgamer.com/gaming-industry/here-are-55-new-photos-of-gabe-newells-usd500-million-superyacht-for-your-peasant-eyes/).
## References
1. [Leviathan | 364FT, Lateral Naval Architects](https://www.lateral.engineering/projects/leviathan/)
2. [LEVIATHAN Yacht - 111m (365ft) Oceanco 2025, YachtBuyer](https://www.yachtbuyer.com/en/fleet/leviathan-364-oceanco)
3. [Gabe Newell caps off Steam Machine week by taking delivery of a new $500 million superyacht, PC Gamer](https://www.pcgamer.com/gaming-industry/gabe-newell-caps-off-steam-machine-week-by-taking-delivery-of-a-new-usd500-million-superyacht-with-a-submarine-garage-on-board-hospital-and-15-gaming-pcs/)
4. [Inside Gabe Newell's 111m superyacht Leviathan, Boat International](https://stories.boatinternational.com/inside-gabe-newells-111m-superyacht-leviathan/)
5. [Gabe Newell Bought Oceanco Mid-Build on His 111m Leviathan, Yotters](https://yotters.com/gabe-newell-bought-oceanco-mid-build-on-his/)
6. [Oceanco Leviathan, le prime immagini in navigazione, Pressmare](https://www.pressmare.it/it/comunicazione/press-mare/2026-05-05/oceanco-leviathan-prime-immagini-navigazione-layout-89751)
7. [Gabe Newell makes surprise appearance in an ad for the yacht company he bought last year, PC Gamer](https://www.pcgamer.com/games/gabe-newell-makes-surprise-appearance-in-an-ad-for-the-yacht-company-he-bought-last-year-riding-around-in-his-usd500-million-boat/)
8. [Gabe Newell estrena Steam Machine... y su nuevo superyate, AS MeriStation](https://as.com/meristation/noticias/gabe-newell-estrena-steam-machine-y-su-nuevo-superyate-con-garaje-submarino-hospital-y-15-pcs-de-gran-potencia-f202511-n/)
9. [Two leviathans of the deep at the Monaco Yacht Show, SuperYachtNews](https://www.superyachtnews.com/fleet/two-leviathans-of-the-deep-at-the-monaco-yacht-show)
10. [Gigayacht på Vestlandet: – Spektakulært, VG](https://www.vg.no/nyheter/i/2po83q/gigayacht-paa-vestlandet-spektakulaert)
11. [Here are 55 new photos of Gabe Newell's $500 million superyacht, PC Gamer](https://www.pcgamer.com/gaming-industry/here-are-55-new-photos-of-gabe-newells-usd500-million-superyacht-for-your-peasant-eyes/)
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*Topic: Encyclopedia › Technology and the built world › Transport and spaceflight › Water transport › Sailboats, yachts, and tall ships*
*Initially written Sep 17, 2026 · Reviewed: Sep 19, 2026; Oct 15, 2026 · Edited: Sep 19, 2026; Oct 11, 2026; Oct 15, 2026 · Last review: Oct 15, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license