Fortnite was to serve as their testbed for living games, but with the shifts in staff, as well as shifting its engine from Unreal Engine 3 to 4, its release suffered some setback. Epic started additional projects; the free-to-play and community-developed Unreal Tournament, first announced in 2014,[46][47] and the free-to-play multiplayer online battle arena game Paragon, launched in 2016 for Microsoft Windows and PlayStation 4.[48] Epic also released a remastered version of Shadow Complex for newer consoles and computers in 2015,[49][50] and their first foray into virtual reality with the release of Robo Recall for the Oculus Rift.[51][52]