Die Drei, means the three games. The box indeed contains the material and the German rules to play three Alex Randolph's games: Hepta, Pegs, Tetrods. It also contains the rules of T. for two, a game created by Franz-Josef Schulte with the pieces of Tetrods. Hepta is also known as Hepta (Ravensburger) or Magic 7 (Ideal). Pegs was published as Peggino (Ravensburger). Tetrods was never published before. T. for two was never published before.