<P> Sea of Thieves was developed using Epic Games' Unreal Engine 4 . Development started in 2014 with the idea of "Group Shaped Narrative", which Gregg Mayles of Rare described as "a clumsily titled concept (that) envisaged a different type of multiplayer game where players would create' experiences that are entertaining to watch"'. The game, codenamed "Athena", did not originally focus on pirates at the time . Instead of a regular character creator, the game features an "infinite pirate generator", that randomly generates a carousel of eight pirates with various body types and faces; players can pick one to play, look at eight more, or can lock one appearance in place while the others change . In November 2016, Rare launched the Insider Programme to give select members access to an in - development version of the game . Rare used the Insider Programme for testing purposes and to get feedback from players . </P> <P> In June 2015, Sea of Thieves was announced at Microsoft's Xbox press conference at the Electronic Entertainment Expo 2015 (E3). Gameplay was first shown at E3 2016 . The game was scheduled to launch on Windows and Xbox One in 2017, but it was delayed until 20 March 2018 . The game is part of Microsoft's Xbox Play Anywhere cross-buy program, meaning that purchasers of the downloadable version of the game can play the game on both a Windows 10 computer and an Xbox One . Additionally, the game is playable at launch for those subscribed to Xbox Game Pass . </P> <Table> <Tr> <Th> Reception </Th> </Tr> <Tr> <Td> <Table> <Tr> <Th_colspan="2"> Aggregate score </Th> </Tr> <Tr> <Th> Aggregator </Th> <Th> Score </Th> </Tr> <Tr> <Td> Metacritic </Td> <Td> (PC) 67 / 100 (XONE) 69 / 100 </Td> </Tr> <Tr> <Th_colspan="2"> Review scores </Th> </Tr> <Tr> <Th> Publication </Th> <Th> Score </Th> </Tr> <Tr> <Td> Destructoid </Td> <Td> 6.5 / 10 </Td> </Tr> <Tr> <Td> EGM </Td> <Td> 6 / 10 </Td> </Tr> <Tr> <Td> Game Informer </Td> <Td> 7 / 10 </Td> </Tr> <Tr> <Td> Game Revolution </Td> <Td> </Td> </Tr> <Tr> <Td> GameSpot </Td> <Td> 6 / 10 </Td> </Tr> <Tr> <Td> GamesRadar+ </Td> <Td> </Td> </Tr> <Tr> <Td> IGN </Td> <Td> 7.0 / 10 </Td> </Tr> <Tr> <Td> PC Gamer (US) </Td> <Td> 72 / 100 </Td> </Tr> <Tr> <Td> Polygon </Td> <Td> 6.5 / 10 </Td> </Tr> <Tr> <Td> VideoGamer.com </Td> <Td> 6 / 10 </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Th> Reception </Th> </Tr>

How many copies has sea of thieves sold