I don't get the whole "300 years after PUBG" bit in the description though.
The origins of The Callisto Protocol began with the formation of Striking Distance as a studio within PUBG Corporation in June 2019, helmed by Glen Schofield, who had previously co-created the Dead Space series at Visceral Games. The studio was created to expand the PlayerUnknown's Battlegrounds (PUBG) universe by creating a narrative driven game. Schofield said that when he met with PUBG Corporation where they explained their goal to expand the PUBG narrative, he had already the concept for The Callisto Protocol in mind and presented that to them and worked with them to fit his idea into their universe. Schofield wanted to keep the game grounded in reality to some degree, and thus selected a potentially human-colonizable location like Callisto as the setting. The moon has been theorized to have a subsurface ocean of water, which Schofield believed could offer a mystery to tie into the game.
Among others working on the game include Steve Papoutsis, who also co-developed the Dead Space series and led the series following Schofield's departure from Visceral; Scott Whitney, a designer on the Dead Space series; and Christopher Stone, the animation director for the former series. Of the 150 employees of Striking Distance, Schofield said that about 25 to 30 former coworkers from Visceral Games and Sledgehammer Games are part of Striking Distance working on The Callisto Protocol.
