Zen Bound is a puzzle game for the iOS, Android, and Maemo platforms (Nokia N900), developed by Secret Exit. It was announced on September 5, 2008 via the company's discussion board, and officially released via the App Store on February 24, 2009, and via Ovi Store on June 16, 2010. A port to Android was announced as part of the Humble Bundle for Android 2 on March 19, 2012. The game has received press attention for its unique gameplay.