The classic card game Klondike Solitare is the most played. Klondike Solitaire is a popular solitaire card game, and you can play it for free online in your web browser. No download or registration is required. About Klondike Solitaire The classic card game Klondike Solitare is the most played. The object of the game is to build the four stacks of cards, numbered Ace through King, but only one...