Canyon Defense is a challenging skill game on www.flash-games.net for free. The goal for you is to build the ideal defense system to protect your city. You build your defense using the different towers available in the Control Panel. Click on one tower and then click on a vacant in the map to build it. The towers will attack enemies that come within their shooting range. You should plan wisely because different towers can attack different types of enemies such as on the ground or in the air. Come on and beat your enemies!