In short
Game Changer shows how far a commercial-style support hull can be pushed as a private explorer: Damen built her as a 69-metre Yacht Support 6911 with a five-tonne helideck and a hangar beneath it, and her first owner added a trimix dive centre with a recompression chamber, a U-Boat Worx submersible and an ROV (Boat International, SuperyachtNews, Robb Report). She was certified under the IMO Polar Code for Arctic and Antarctic operations, although no ice-class notation has been published (SuperyachtNews). The kit was used: in 2019 she covered 48,000 miles, including Antarctica, South Georgia, Patagonia and Indonesia, and a British Antarctic Survey scientist used her submarine to study retreating fjord ice (Robb Report). Since 2026, as Indratus, she has returned to the support role she was designed for, as a companion vessel in Gabe Newell's Inkfish fleet (Boat International).
- World Superyacht Awards 2018: winner of the Support Vessels category — Boat International, The winners of the World Superyacht Awards 2018, YachtBuyer, 72m Damen Companion Yacht Indratus Emerges With New Look Following Oceanco Refit
- Asia Boating Awards: finalist, Best Explorer Yacht — YachtBuyer, 72m Damen Companion Yacht Indratus Emerges With New Look Following Oceanco Refit
Videos
Three tours from YouTube.
Photos








Further reading
Independent coverage we found. We link to it rather than rewrite it.
- Boat International · News72m Damen Yachting support yacht emerges from Oceanco following extensive refit for Gabe Newell's Inkfish fleet5 Oct 2026
- YachtBuyer · News72m Damen Companion Yacht Indratus Emerges With New Look Following Oceanco Refit2 Oct 2026
- Boat International · BrokerageDamen Yachting explorer yacht Game Changer sold21 Sep 2021
- Boat International · FeatureA superyacht for your superyacht? The rise of the support vessel27 Jul 2021
- Boat International · NewsInside the Damen Yachting expedition yacht Game Changer20 May 2021
- Robb Report · FeatureThis Explorer Yacht Was Refitted Twice To Fit The Owner's Expectations26 Mar 2021
- SuperyachtNews · NewsDamen delivers luxury expedition vessel 'Game Changer'22 Nov 2018
- Boote · News69 metre heliport with diving centre28 Nov 2018
- Boat International · FeatureGame Changer: The 69m lifestyle launch pad from DamenNov 2017
Specifications
- Ice class
- No ice-class notation has been published. She is classed with Lloyd's Register, whose public register does not show notations, and none of her descriptions mentions ice strengthening of the hull
- Polar Code
- Certified for Arctic and Antarctic operations under the IMO Polar Code after her 2018 refit; Boat International called her Polar Code compliant in 2021. The category on her Polar Ship Certificate (A, B or C) has not been published
- In ice, in practice
- A Polar Ship Certificate sets limits for each ship. Category C, the least demanding, covers ships designed for open water or ice lighter than thin first-year ice; without a published ice notation there is no basis to assume more for Game Changer. Her reported polar voyages, to Antarctica and South Georgia, were described as research-led dive expeditions, not as ice navigation
- Role
- Built as a yacht support (shadow) vessel. From 2018 to 2021 she cruised on her own as an expedition yacht and was chartered three times to support other yachts. Since 2026, as Indratus, she is a companion vessel in Gabe Newell's Inkfish fleet with the 111-metre Leviathan and the 92.8-metre Draak
- Length overall
- 72 m since the 2020 refit, which extended the stern by about 3 m; 69.15 m as built
- Beam
- 11.5 m
- Draught
- 3.65 m maximum
- Gross tonnage
- 1,385 GT 1,200 GT in the Boat International directory
- Hull and superstructure
- Steel hull with an aluminium superstructure; a Damen Sea Axe bow; her lines draw on the yard's commercial vessels
- Builder
- Damen Yachting, the Netherlands: the second of two Yacht Support 6911 hulls, built on speculation
- Design
- Exterior design and naval architecture by Damen Yachting; interior by Struik & Hamerslag The Boat International directory credits the interior to Damen Yachting
- Engines
- Four MTU 16V 4000 M63L diesels of 3,000 hp each, 12,000 hp in total
- Speed
- 20 kn top speed; 15 kn cruising 21 kn top and 18 kn cruising in the Boat International directory
- Range
- 4,500 nm at 16 kn 4,155 nm at 15 kn in YachtBuyer (2026)
- Fuel
- 340,000 litres
- Endurance
- Days of autonomy have not been published. She was designed to carry extra provisions, fuel, luggage and spare parts for remote cruising
- Helicopter
- One helideck aft, LY3 and MCA certified, for helicopters up to 5,000 kg, with an explosion-proof hangar below it sized for a Bell 429, Leonardo AW109 Grand New or Airbus H155, and 10,000 litres of helicopter fuel. From 2018 she carried a custom Airbus H130 T2 with a gyro-stabilised Shotover 8K camera. The 2026 refit transformed the interior space under the helipad; no source has yet said whether the hangar was kept
- Submersible and ROV
- A U-Boat Worx C-Researcher rated to 1,100 m from 2018, replaced by a new three-person U-Boat Worx CR3 collected in Curaçao in early 2021; a Saab Seaeye Falcon ROV rated to 1,000 m. Equipment after the 2021 sale has not been described
- Dive centre
- PADI five-star dive centre with trimix filling by Moondog Diving, a custom compressor, 48 cylinders and a Hyperlite recompression chamber; dive instructors, dive masters and a rebreather diver among the crew
- Deck and cranes
- 250 m² open working deck able to carry 350 tonnes, with a 360-degree deck crane lifting 11.45 tonnes at up to 16 m and a second crane for the crew tender (as built); 110 m² of dive and storage space below deck. YachtBuyer lists a 12-tonne deck crane after the 2020 crane changes
- Tenders and toys
- On her 2017 sea trials: a Wajer 38 dayboat, a 10.5 m RIB and a U-Boat Worx submersible. After the 2018 refit Boote listed an open tender, a landing craft, three RIBs and three KTM motocross bikes. By 2021 she carried six tenders, including a 38 ft Intrepid fitted with sonar
- Where she has been
- One circumnavigation by early 2021, mostly in cold waters such as Patagonia. In 2019 she covered 48,000 miles, calling at South Georgia, Antarctica, Patagonia, Central America, the Pacific, Indonesia and Australia. In Antarctica a British Antarctic Survey scientist used her submarine to study fjord ice retreat. Charters supporting other yachts were in the Mediterranean (helicopter platform and security), the Caribbean (security and diving) and Antarctica (expedition staff). In 2021 her captain named Central America and the Caribbean as the next destinations
- Build and refits
- Launched on 17 February 2017; sea trials in the North Sea were completed by early May 2017. Shown at the 2017 Monaco Yacht Show and sold, then refitted for eight months at Damen Gorinchem and handed over at Gorinchem in November 2018 with a new dive centre, larger galley and saloon and Polar Code certification. Refitted again at ICON Yachts from March 2020: stern extended, heated beach club and larger swim platform, dynamic positioning, sonar, larger windows, new stabiliser fins and noise and vibration work. Listed for sale through Edmiston with an asking price of €49 million and sold in September 2021. As Indratus, refitted at Oceanco, Zwijndrecht, from March 2026 with a 10-year survey and a full repaint; early images suggest an extended upper deck; redelivery is scheduled for later in 2026
- Guests and crew
- 17 guests in eight cabins, plus six owner's staff in three cabins and 16 crew (2026) 11 guests in five cabins, six staff and 16 crew in 2021; 21 crew in 11 cabins as built
- Flag
- Cayman Islands
- Charter
- Offered for charter through Edmiston in 2021, both on her own and as a support vessel; no current charter listing found
- Owner
- Reported to be part of Gabe Newell's Inkfish fleet (Boat International, October 2026). Registered owner in the Lloyd's Register: Cervantes Co
Where is she now
Live AIS position on:
IMO 9778973 · MMSI 319345600
Questions
Is Game Changer the same yacht as Indratus?
Is Game Changer an ice-class yacht?
How far can Game Changer travel?
Does Game Changer have a helicopter hangar?
Who owns Indratus?
Can you charter Game Changer?
Compare with
Explorer yachts of a similar type and length in this guide.

Abeona
The largest support vessel Damen Yachting has built, a 75-metre shadow ship with a helicopter hangar for the sailing yacht Koru

Hodor
A 66-metre catamaran that carries the helicopter, the submarine and the toys for her mothership

Cloudbreak
A 75-metre Abeking & Rasmussen built for heli-skiing and surfing trips, with an ice belt and a commercial helideck
Sources (17)
- Lloyd's Register, Ships in Class (search by IMO 9778973)
- International Maritime Organization, Shipping in polar waters (Polar Code)
- Damen Yachting on YouTube, Launch of Damen YS6911 GAME CHANGER 22 Feb 2017
- Edmiston on YouTube, Game Changer Superyacht: available for sale and charter through Edmiston 5 Jan 2021
- Boat International, The Superyacht Directory: Indratus (ex-Game Changer), BOATPro data
- Boat International, Game Changer: The 69m lifestyle launch pad from Damen (November 2017 issue) 1 Dec 2017
- Boat International, Inside the Damen Yachting expedition yacht Game Changer 20 May 2021
- Boat International, Damen Yachting explorer yacht Game Changer sold 21 Sep 2021
- Boat International, A superyacht for your superyacht? The rise of the support vessel 27 Jul 2021
- Boat International, 72m Damen Yachting support yacht emerges from Oceanco following extensive refit for Gabe Newell's Inkfish fleet 5 Oct 2026
- YachtBuyer, 72m Damen Companion Yacht Indratus Emerges With New Look Following Oceanco Refit 2 Oct 2026
- Robb Report, This Explorer Yacht Was Refitted Twice To Fit The Owner's Expectations 26 Mar 2021
- SuperyachtNews, Damen delivers luxury expedition vessel 'Game Changer' 22 Nov 2018
- Boote, 69 metre heliport with diving centre 28 Nov 2018
- International Institute of Marine Surveying, Game Changer completes sea trials 8 May 2017
- VesselFinder, Indratus (IMO 9778973)
- Boat International, The winners of the World Superyacht Awards 2018 19 May 2018
