Solitaire Package One includes ten different solitaires. It contains four two deck (Engagements, Gargantua, Golgotha, Hemispheres) and six one deck (Agnes, Canfield, Fourteens, Penguin, Pyramid Building, Sir Tommy) solitaires. Engagements was created by the author of Package one, you won't find it anywhere else. All games have customizable background textures and six card back designs. There are individual hi-scores for every game and every player, quick in-game rule explanations and tips, a fair-play enforcement feature, limited undo and autoplay tools. The whole package looks neat and feels professional. If you are a serious fan of solitaire, this can keep you entertained for days.