Emerland Solitaire

This one dresses up a card-matching puzzle in knights, elves, and sorceresses defending a fantasy realm, though the gameplay itself is closer to a tableau-clearing card game than straight Solitaire. You work through set layouts and combinations rather than one plain deck, with a few hundred levels to get through if the theme appeals to you. It's a reasonable pick if you want the familiar rhythm of card matching with more scenery than a bare green table.