The video game "That Dragon, Cancer" is based on the experiences of Ryan and Amy Green raising their son Joel after he was diagnosed with an atypical teratoid rhabdoid tumor at 12 months and given only about four months to live. Joel continued to survive for four more years after suffering from seven additional tumors and eventually succumbing to cancer on March 13, 2014. Ryan Green wanted to provide the experiences of raising Joel in the form of a video game to help the player to understand the difficulties and realities with which they had to deal during this time. After Joel's death, the game was reworked to instead act as a tribute to Ryan and Amy's five short years with their third child. The Green family's experiences are also documented in the film "Thank You For Playing".