"That Dragon, Cancer" is a biographical game, and the brainchild of Ryan Green.
Green's son, Joel, was diagnosed with an atypical teratoid rhabdoid tumor (often called AT/RT) at the age of one. In the last three years, he has had seven different tumors, each aggressively treated by radiation, surgery or chemotherapy — all therapies rarely used on young children.
Each time, doctors gave Joel only a few weeks or months to live.
But three years later, Joel continues to survive. That's why Green chose to createThat Dragon, Cancer, a point-and-click adventure game that allows players a glimpse into life with a very sick child.
Read more at: http://mashable.com/2013/06/21/that-dragon-cancer/