Castle Defense is a free unblocked action game that you can play for free at Yoob Games on any device. This is one of our many featured games with a rating of 8/10 (from 1 votes). Castle Defense is one of many action games that you can play. If you want to play more games like this, then check out Defend the Castle or Age of War. To play even more unblocked games view our best Yoob games page.