Tiny Tower is an incremental business simulation video game developed and published by the American indie studio NimbleBit. In it, the player manages a multi-story building with virtual people termed "bitizens" and must build floors to attract residents and generate more revenue. It was released on June 23, 2011, for iOS devices, followed by a version for Android on November 16, 2011. While it was shut down in September 2015, Tiny Tower was re-released with revamped gameplay in May 2016 and has since inspired spin-off games themed after other fictional properties.