Champion of the Realm

From the introduction:

This game is designed as a solitaire adventure. All you need to play is a deck of cards, some tokens of some sort (a bunch of pennies will do in a pinch), and a pencil and a couple of blank sheets of paper. If you have the time and inclination, you can also do all the "paper parts" of the game as wiki page that chronicles the adventures of your champion. The wiki version is more time intensive, but will help you to create a more substantial story. Combining the two will make for a more full experience.