Solitaire (Klondike) - Version 1.0 Klondike Solitaire is a free Klondike Solitaire card game for the PC. Klondike Solitaire is the worlds most popular solitaire card game. If you have only played one version of solitaire it is probably klondike solitaire. Microsoft popularized Klondike Solitaire with the release of Microsoft Solitaire with the Windows Operating System.