Game Vortex writes: " I have seen the "world" of flOw referred to as a "biosphere" or a "universe," but it appears to me that flOw actually takes place on a microscope slide.
The graphics in flOw are absolutely beautiful, as you can see in the screenshots. The organisms themselves have very simple designs, and the color palette used is nearly monochromatic, with occasional flashes of color indicating that an organism is becoming aggressive or is being injured.
The sound effects are composed primarily of simple tones that ring out when you consume a smaller organism, attack something or get attacked yourself. These simplistic sound effects are at differing pitches, however, keeping the game from being too repetitive or aggravating and, in fact, are quite relaxing, much like listening to wind chimes. This was a refreshing change of pace from the typical blood-pumping musical assault that most games feature."