Switch Spider Solitaire is played with only one set of standard 52-cards set. It has only 5 tableau piles and game play is much like Spider Solitaire except a twist in the way tableau piles are built. Tableau piles can be built up as well as down by rank. Unlike Spider Solitaire where the cards are assembled in the tableau before being moved to the foundation, Switch Spider allows for moving cards to the foundation as soon as it can be played. Foundations are built-up by suit starting from Ace.
The game can be played using one, two, three, or all four suits. Most games are solvable, though the complexity increases as the number of suits go up in the game. Features: Selection of 1 to 4 suits; Smooth animation; Save game state to play later; Unlimited undo; Game statistics.