Duels Defense is a well-designed tower-defense game that you can play on www.games501.com for free. Your mission is to protect your castle from enemy destructions. First, you need to select one role from mage, warrior, assassin and druid. Various maps like pillbox, trench and clover are available in the game. This very interesting flash game is a wonderful way to practice your logical thinking ability. Enjoy it heartily in your spare time.Good luck!
