UK studio Atom Republic sprung onto the virtual reality (VR) scene back in 2013 with the debut of their digital world, Atom Universe. Back then the studio showcased a collection of mini-games playable on PlayStation 4 and PC, with or without VR, and since then the landscape of Atom Universe has continued to grow both figuratively and literally.
Source: N4G PC Studio Profile: Atom Universe Breaking New Ground in Social AR & VR