The Middle Ages for Kids, Games: Lots of links. Includes links for literature.
Toys in the Middle Ages, Art: Descriptions of games and toys, including history.
Middle Ages Renaissance Age Games: Links with paragraph explanations.
Medieval Games, including explanations of the game and historical points. Did you know that the Romans played Bocce during the Punic Wars? Charlemagne (1200 AD) outlawed Bocce because the soldiers were too involved in playing to show up at the battles?
These are some of the sites I am using to get ready for my Games and Races Through History class.