The first, Breakout is an immediately-familiar arcade game, first designed in 1976, in which the player slowly destroys a wall with a bouncing ball. The second, Peggle is an addictive modern masterpiece by puzzle game designers PopCap. The third, Scrabble, has been around for almost a century, and should be familiar to everyone.
Each of the three pieces shares a number of graphic elements, as well as an overall geometric simplicity. This draws attention to the fact that, despite their deeply compulsive nature, these games are actually constructed from very basic components.