Depression Quest is a 2013 interactive fiction game dealing with the subject of depression. It was developed by Zoë Quinn using the Twine engine, with writing by Patrick Lindsey and music by Isaac Schankler. It was first released for the web on February 14, 2013, and for Steam on August 11, 2014. The game tells the story of a person suffering from depression and their attempts to deal with their affliction. It was created to foster greater understanding about depression. Depression Quest can be played for free, and has a pay-what-you-want pricing model. The National Suicide Prevention Lifeline receives part of the proceeds.