Joust Challenge is an online game from the Metropolitan Museum in New York.  Players have to answer simple multiple choice questions about knights in the Middle Ages.  Depending on whether the answer is correct, their “knight” will  either win or lose an animated joust.

The game would be accessible to Intermediate English Language Learners, especially if done in combination with lessons on that time period.

I’ve placed the link on my World History page under The Middle Ages.