 Chen felt that the reason that Cloud had been so warmly received was because the emotions it sparked in players were different than any other game available at the time , and believed that it was his " calling " to make more games that changed what people saw video games as . Chen went on to do his master 's thesis the following year in the concept of dynamic difficulty adjustment , where the game adjusts how it reacts to the player based on the past and present actions of that player . Chen illustrated his ideas with Flow , a Flash game made with Nicholas Clark . The game involves the player guiding an aquatic microorganism through various depths of the ocean , consuming other organisms and evolving in the process . It was released in March 2006 ; it received 100 @,@ 000 downloads in its first two weeks and by July had been downloaded over 650 @,@ 000 times . A PlayStation 3 version was announced in May 2006 as a downloadable game via the PlayStation Store , and was released in February 2007 . A version for the PlayStation Portable , developed by SuperVillain Studios , was released in March 2008 . Flow became the most downloaded game on the PlayStation Network in 2007 , and won Best Downloadable Game at the Game Developers Choice Awards . 
 Chen felt that the reason <a href='null_relcl' title='1'><mark>that</mark></a>Cloud <a href='been_done' title='2'><mark>had</mark></a> been so warmly received was because the emotions it sparked in players <a href='uninflect' title='3'><mark>were</mark></a> different than any other game available at the time , and believed that it was his " calling " to make more games <a href='null_relcl' title='4'><mark>that</mark></a>changed what people saw video games as . Chen went on to do his master <a href='null_genetive' title='5'><mark>'s</mark></a>thesis the following year in the concept of dynamic difficulty adjustment , where the game <a href='uninflect' title='6'><mark>adjusts</mark></a> how it <a href='uninflect' title='7'><mark>reacts</mark></a> to the player based on the past and present actions of that player . Chen illustrated his ideas with Flow , a Flash game made with Nicholas Clark . The game <a href='uninflect' title='8'><mark>involves</mark></a> the player guiding an aquatic microorganism through various depths of the ocean , consuming other organisms and evolving in the process . It was released in March 2006 ; it received 100 @,@ 000 downloads in its first two weeks and by July <a href='been_done' title='9'><mark>had</mark></a> been downloaded over 650 @,@ 000 times . A PlayStation 3 version was announced in May 2006 as a downloadable game via the PlayStation Store , and was released in February 2007 . A version for the PlayStation Portable , developed by SuperVillain Studios , was released in March 2008 . Flow became the most downloaded game on the PlayStation Network in 2007 , and won Best Downloadable Game at the Game Developers Choice Awards . 
Chen felt that the reason Cloud done been soo warmly received was because the emotions it sparked in players was different than any other game available at the time , and believed dat it was his " callin " to make more games changed what people saw video games as . Chen went on to do his master  thesis the following year in da concept of dynamic difficulty adjustment , where the game adjust how it react to tdaplayer based on thdaast and present actions of tdatplayer . Chen illustrated his ideas with Flow , a Flash game made with Nicholas Clark . The game involve the player guiding an aquatic microorganism through various depths of thedaean , consuming other organisms and evolving in the dacess . It was released in March 2006 ; it received 100 @,@ 000 downloads in its first two weeks and by July done been downloaded over 650 @,@ 000 times . A PlayStation 3 version was announced in May 2006 as a downloadable game via the PlayStation Store , and was released in February 2007 . A version fir the PdaStation Portable , developed by SuperVillain Studios , was released in March 2008 . Flow became the most downloaded game on the PlayStation Network in 2007 , and won Best Downloadable Game at the GadaDevelopers Choice Awards .