to the Morgan Adams Foundation and Family House SF, two charities that had assisted the Greens during Joel's treatment in San Francisco. An iOS version was released on October 5, 2016. Documentary A documentary about the Greens and their development of That Dragon, Cancer was announced in April 2014, entitled Thank You for Playing. It was produced by David Osit and Malika Zouhali-Worrall independent of the game's development. The documentary was picked up by PBS as part of POV, to air in 2016, while a preview airing was shown in August 2015 at the PAX Expo. Through a successful Kickstarter, the film had a limited theatrical run before its digital release in March 2016. The documentary was broadcast on television on PBS on October 24, 2016. An audio documentary on the genesis of the game and the family's grief in preparing for Joel's death was produced by Gimlet with interviews by Ryan and Amy Green. That Dragon, Cancer and Ryan Green were featured in the 2015 documentary GameLoading: Rise of The Indies. Reception That Dragon, Cancer was highly praised by reviewers on its release, with many favorably commenting on the overwhelming emotional difficulty presented that forces the player to experience and understand what the Greens had gone through with Joel. Sam Machkevoch of Ars Technica noted that while other games have tried to elicit similar emotions from its players, That Dragon, Cancer was unique in its approach for being "so frank, so nakedly autobiographical, and so imbued with its creators' spiritual identities". Cassandra Khaw for Ars Technica believed that while some of the vignettes were not as powerful as others, That Dragon, Cancer made effective use of the video game medium, as by forcing the player to interact instead of remaining an observer, the game "compels us to shoulder some of the creators’ grief and to embrace the legacy of Joel’s short life". Lucy O'Brien for IGN summarized her review of the game as "imperfect, but unforgettable". In March 2016, Ryan Green, speaking for his team, commented that the game has only sold about 14,000 copies, based on Steam Spy data, and they have yet to recover their development funds for the game. Ryan noted that many Let's Play videos, gathering more than a million views, of That Dragon, Cancer had simply played through the game without commenting on it or providing viewers with links and information about the game,