visits to doctors and hospitals for palliative care and chemotherapy treatment. In early 2014, Joel's condition worsened, and the Greens temporarily moved from Colorado to San Francisco to take part in an experimental drug trial. The new drug failed to relieve the boy's new symptoms, so the Greens, following the advice of the hospice, decided to remove his feeding tube, and he died on March 13, 2014 at the age of five. Gameplay That Dragon, Cancer is played as an exploration game from both third- and first-person perspective through a number of abstracted scenes based on the Greens' experience with raising Joel from learning of his condition through his death. The player takes the role of Joel's parents in fourteen small vignettes that capture some of the emotional moments they had to face during Joel's life expressed as interactive art. The player is able to interact with the characters and make certain choices, similar to those faced by the Greens. The first scene is where the parents have learned of their child's diagnosis, having the player consider their new responsibilities for caring for the child while reflecting on the "absurdity and sterility" of the hospital setting. The game includes some fantasizing and imaginative reconstructions of some of the real moments the Greens experienced, such as a wagon ride in a hospital being envisioned as a colorful racing game. Alongside the interactivity, the game includes narration from Ryan, Amy, and other family members, as well as recordings such as voicemails that they had made during their time with Joel. The scenes include cards, letters, and other mementos of support for the Greens, sent by people who had experienced similar losses in their life. Development Ryan Green came up with the idea for the game when Joel was four. He and Amy, both devout Christians, felt that the added years they had with Joel from the original diagnosis were a miracle. Prior to the idea, Green had written some smaller games that were meant to be more emotional, such as Giga Wife, which demonstrated how one's interactions with a spouse could be negatively compared to a Tamagotchi-like game. While at church, Ryan came up with the idea for That Dragon, Cancer during their reflection on the past few years, specifically recalling a night at the hospital where he was trying to stop Joel from crying but anything he did seemed to make