 TowerFall was released June 25 , 2013 as an Ouya exclusive . The game sold well , minding the Ouya 's newness , which allowed Thorson to develop the game into a fuller package . Thorson stated his plans to extend the single @-@ player , and signed a new exclusivity agreement to release TowerFall Ascension on PlayStation 4 and Steam with new levels , weapons , and gameplay variants after the Ouya exclusivity agreement ended six months later . Sony actively pursued the game , and a majority of the porting work was handled by Dallas @-@ based <unk> Games by two people over the course of eight weeks using <unk> , " an open source rewrite " of Microsoft XNA . Thorson thought that the DualShock 4 's directional pad was " perfect for TowerFall " and that the PlayStation 4 was " the natural next step " for the game . He received a letter from George Broussard before Ascension 's launch with pre @-@ congratulations on Thorson 's becoming a millionaire . The main additions to Ascension were its single @-@ player and cooperative gameplay modes . A level editor is planned for a future update , and Thorson has expressed interest in six controller support for three @-@ on @-@ three matches . Ports for Linux and OS X platforms were released on May 29 , 2014 with updated game variants . TowerFall was selected for the July 2014 Evolution Championship Series fighting game tournament 's Indie Showcase , and as a free game with PlayStation Plus for the same month . 
