Spider Solitaire
This version of solitaire is close to the classic one and allows to choose between 1, 2 or 4 suits. You must create royal flushed and drag&drop cards from the same suit.
You can play it in fullscreen and includes a help menu to view the rules.
The purpose is to remove all cards by creating suits from king to ace. You lose 1 point at each move and you win 500 points for each royal flush.