tranquility is a nonviolent musical platform game created in 1991 for Macintosh and Windows computers by musician William A. Romanowski. The game features generative algorithms that determine music and level layout based on the player's actions hotels in san diego. For this reason, and due to its use of generated ambient music, the game's philosophy has been compared to that of Transcendentalism and the New Age Movement. According to the game's publishers, some players have reported immersion in the game to produce a dream- california hotels like experience during and after play. The game notably appeared first as a demo included with Silicon Graphics computers.[ amsterdam hotels] It was updated and re-released by its designer as a commercial game 10 years later in 2001.