Play online Solitaire Klondike! The aim of this free online version of Klondike Solitaire is to stack your cards in a sequence from Ace to King on the foundation piles according to their suit, with one suit per foundation. Solitaire cards are placed on cards that are of one higher value and of the opposite color. You can even move multiple Klondike Solitaire cards, so long as it is in keeping with the aforementioned rules of solitaire. Only Kings or columns with a King can be placed on empty columns.