The OUYA’s most-beloved launch title was Towerfall, and it gave the system a killer app that no other platform had. With the release of Towerfall: Ascension on Steam and the PlayStation 4, owners of the Android microconsole felt a bit left out – until today. Now, anyone who owns Towerfall can get a free upgrade to Ascension. Ascension gives you more maps and offers up the most definitive edition of the game to date. While it’s free if you already have Towerfall, if you don’t, it will cost you $15 – the same price as the base game was before, and what it costs on both Steam and the PS4.