The giant's are attacking the castle and you must build defense towers to defeat them before they tear down the castle walls. The towers that you build will wear down after awhile of use so you must keep an eye on them to repair them from time to time during battle. When you place towers on the grid you cannot place them directly on the path that the giants will take you will have to place them along side their path so that they can attack them. Enjoy and bring down the giants! Jack the Giant Slayer: Cloister Defense is one of our many Strategy Games that we publish on TheGamerStop.com. This game is also tagged as a Strategy War game. Click the play button to start having fun. To play even more free games, view our popular and new games page. If you want to play more games like this, then you can simply check out the games inside the game tags that are the most relevant to your interests or the Strategy Games category or the games like this game page at the end of the game tags.