Passage: Thatgamecompany, LLC (stylized as thatgamecompany) is an American independent video game development company founded by University of Southern California students Jenova Chen and Kellee Santiago in 2006. The company was a developer for Sony Computer Entertainment, contracted to create three downloadable games for the PlayStation 3's PlayStation Network service, and has since secured independent funding. The first of their games is a remake of Chen's award-winning Flash title Flow, with enhanced visuals and sound, added multiplayer modes and compatibility with the PlayStation 3's motion sensitive controller. The title was released on the PlayStation Store in 2007. The company's second PlayStation 3 game, Flower, was released on the PlayStation Store in 2009, and their third game, Journey, was released in March 2012 on the PlayStation Store. Their fourth game, Sky: Children of the Light, is set to be released on July 11, 2019 on iOS.

Question: Thatgamecompany based their first ever games on what?
Flow