 After more than two years of development, the game was released in late 2007 for Windows.A port of the game to Mac OS X was released in 2008 by Ambrosia Software, and an updated version of the game was released on the Steam service that same year.A Linux version of the game was released as part of the first Humble Indie Bundle collection in 2010, a version for the iPad was released in 2011, and an Android version debuted in 2013 alongside another Humble Bundle collection.