Pretty Good Solitaire (Mac Edition) is a collection of 500 solitaire card games, from classic games like Klondike, FreeCell, and Spider, to original games found nowhere else, such as Demons and Thieves and Aces and Kings.
Pretty Good Solitaire features lush graphics, beautiful easy-to-read cards, sound, in-depth statistics, and quick click smart move. Other games include Yukon, Scorpion, Spider One Suit, Spider Two Suit, Russian Solitaire, Gaps, Aces Up, Pyramid, Cruel, Penguin, Crazy Quilt, and many more. Also includes Climb Mode, where you play games in order for a cumulative score.
Even though I have paid for Pretty Good SOlitaire, it does not remain free on my computer (Macintosh) if I do not keep it active. It asks me to buy it and I have already bought it....twice.