Fall Guys: The Ultimate Knockout Fall Guys: Ultimate Knockout is a 2020 battle royale game developed by Mediatonic and published by Devolver Digital. It was announced at E3 in June 2019 and released on 4 August 2020 for Microsoft Windows on Steam and PlayStation 4. The gameplay has taken inspiration from the 1980s gameshow Takeshi's Castle. Latest News See All News No items found. Latest Images See All Images No items found. Latest Videos See All Videos No items found.