SolSuite

What separates this program from others of its kind is its built-in game editor, which lets you change the rules of any game. You can also change the backgrounds of your card deck by using your own .bmp images. In the classic solitaire game Klondike, for example, you can specify how you want your cards to be arranged: sequentially in the same suit, alternating colors, or regardless of suit. The game features sounds that you can disable. You can also retrieve statistics, graphs, 3D charts (pies and bars), and tables to help you estimate your skill level. With over 9 trillion possible games to play, this program can help you kill a lot of free time.