The 4Free Solitaire Collection for Windows is a collection of nine one-deck solitaire games that you can play on your computer. The shareware version of this program contains only three solitaire games (Klondike, Four Seasons and Monte Carlo). The registered version contains the three games from the shareware version plus six additional solitaire games (King's Audience, Canfield, Golf, Poker, Pyramid and Beleaguered Castle).