High Quality Content by WIKIPEDIA articles! Flow (stylized as flOw) is an indie video game created by Jenova Chen and Nicholas Clark. Originally released as a free Flash game in 2006 to accompany Chen`s master`s thesis, it was reworked into a 2007 PlayStation 3 game by his development studio, Thatgamecompany. SuperVillain Studios released a PlayStation Portable version of the game in 2008. In Flow, the player navigates a series of two-dimensional (2D) planes with an aquatic microorganism that evolves by consuming other microorganisms. The game`s design is based on Chen`s research into dynamic difficulty adjustment at the University of Southern California`s Interactive Media Division, and on psychologist Mihaly Csikszentmihalyi`s theoretical concept of mental immersion or flow.