Pyramid Solitaire is a free online game where the order you make your matches really, truly matters. Play this free solitaire card game today for free!. Official AARP Pyramid Solitaire. A free online solitaire card game where the player tries to match pairs of cards with a rank that totals. Match cards that add up to the number 13 and work your way to the top of the playing card pyramid! Play a game of Pyramid Solitaire online!.