5-year-old Joel Green, the inspiration for video game about cancer, passes away

Five-year-old Joel Green, whose terminal cancer is the focus of upcoming game That Dragon, Cancer, passed away this morning. "Joel took his last breath at 1:52 a.m.," his father Ryan Green wrote on his website today.

That Dragon, Cancer tells the story of the challenges Ryan and his wife Amy faced during Joel's life. It will touch on the trials of the experience, as well as the lighter, more hopeful moments. Green is working on the game with his friend Josh Larson.

Amy Green shared an update about Joel's condition last night on a blog dedicated to his life. She wrote that Joel was recently taken to a Children's Hospital in San Francisco where he was receiving treatment. She was told he had a week to live.

That Dragon, Cancer is expected to launch this year exclusively on Ouya, though it is unclear how Joel's passing will affect the project. For more on the game, check out the official That Dragon, Cancer website.