Cytus is a music-based game that features nearly 100 songs from composers around the world. Gameplay is simple: as a song plays, the screen displays corresponding musical notes in the form of colourful circles. A scan line moves up and down constantly, and players have to tap on the note exactly when the line is above it to score maximum points. <br/><br/>Cytus boasts of beautiful handdrawn backgrounds and the songs span across genres such as pop, jazz, trance, hardcore, drum ’n bass, etc. Notes are of three types, requiring either long presses, quick taps, or slides – and you have nine difficulty levels that make this game hard to master. Nonetheless, it is highly addictive. Currently, Cytus is made up of 6 “Chapters” , and the makers unlock a new chapter, comprising 10 more songs, for every 1,00,000 downloads. So as long as people keep downloading, you get more songs to play.