BioShock Infinite is a first-person shooter video game developed by Irrational Games and published by 2K Games. It was released worldwide for the Microsoft Windows, PlayStation 3, and Xbox 360 platforms on March 26, 2013; an OS X port by Aspyr was later released on August 29, 2013 and a Linux port was released on March 17, 2015. Infinite is the third installment in the BioShock series, and though it is not immediately part of the storyline of previous BioShock games, it features similar gameplay concepts and themes. Irrational Games and creative director Ken Levine based the game's setting on historical events at the turn of the 20th century, such as the 1893 World's Columbian Exposition, and based the story on the concept of American exceptionalism, while also incorporating influences from more recent events at the time such as the 2011 Occupy movement.