GTKabale is an implementation of the well known solitaire card game, only in a lazy version. It can be played with a minimal effort.
You move the cards with the mouse. Just click on a card to move it. If there is only one possible move, the card(s) moves by itself, otherwise you'll have to click on the destination. A click on the card back to the left flips three cards fron the ones on hand, a right click anywhere does the same.

License: free

Additional System Requirements: ImLib 1.9.4 GTK 1.2