<P> A virtual reality massive multiplayer online game was in development by Kadokawa and IBM Japan, but was only a demo and will not be released as a full game . An action role - playing game titled Accel World VS Sword Art Online: Millennium Twilight was announced in October 2016 . The game is a crossover with Accel World, developed by Bandai Namco Entertainment for PlayStation 4, PlayStation Vita, and Windows via Steam, and was released to western audiences on July 7, 2017 . </P> <P> Sword Art Online: Memory Defrag, launched by Bandai Namco Entertainment, was released outside of Japan on January 24, 2017 . This RPG is available on iOS and Android devices . Featuring content from the anime series, Ordinal Scale, and some original shorts written for event characters, players are allowed to play solo and progress through the story, or join up with others online to farm special items, equipment, and materials . Common events include ranked challenges against other players, floor clearing, character introductions and seasonal events . Players have the choice of spending real money to speed - up their progress . </P> <P> A game based in Gun Gale Online, Sword Art Online: Fatal Bullet, was released for the PS4, Xbox One and Windows on February 23, 2018 . </P> <Table> <Tr> <Th_colspan="2"> Sword Art Online </Th> </Tr> <Tr> <Th> Based on </Th> <Td> Sword Art Online by Reki Kawahara </Td> </Tr> <Tr> <Th> Written by </Th> <Td> Laeta Kalogridis </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> Laeta Kalogridis </Li> <Li> David Ellison </Li> <Li> Dana Goldberg </Li> <Li> Marcy Ross </Li> </Ul> </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> Skydance Television </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> Netflix </Td> </Tr> </Table>

When does sword art online game come out