Hardcell Solitaire - Version 1.0 Hardcell Solitaire is a solitaire card game that is a modified form of Freecell. In Hardcellcell Solitaire, the player uses reserve cells to temporarily store cards while attempting to sort the cards into the foundations. Unlike in traditional freecell solitaire, hardcell turns 20 cards face down to make the game more challenging for the player.