Arto is a 3D top-down action RPG. Events take place in a universe that has lost color. Now it is a gloomy gray world that has no colors, and everything is done as if drawn with a pencil on paper. The main character is a girl who has unique abilities. She can enliven and paint the world around her by simply moving around the locations. This allows you to see all the colorfulness and diversity of biomes, as well as save the universe from reflection. Of course, there are opponents who do not need this, and they are trying to stop the main character from this.