Enjoy the most popular card game ever - Klondike Solitaire (Solitaire in short). Play Klondike Solitaire HD instantly online. Klondike Solitaire HD is a fun and engaging online game. The object of the game is to build the four foundations up in ascending suit sequence from Ace to King. e.g. A, 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K with cards of identical suit.