Risk of Rain is a platform video game incorporating roguelike elements, developed by a two-student team from the University of Washington under the name Hopoo Games. The game, initially a student project, was funded through a Kickstarter campaign to improve the title, and was published by Chucklefish Games to Microsoft Windows in November 2013. OS X and Linux versions premiered as part of a Humble Bundle in October 28, 2014. Ports for the PlayStation 4 and PlayStation Vita, developed with assistance from Code Mystics, were released on April 12, 2016.