Just Defense is a Tower Defence game on water, where to have to blast big boats and ships to pieces before they make it passed your defenses on the river. Place your defensive guns along the river banks to sink the attacking boats before they pass. Remember to upgrade and develop your guns often to increase their strength and effectiveness.
Obviously your a big Tower Defence game fan and we know you've enjoyed this so you will definitely enjoy either Offensive Defense or 3D TD. Failing that, eat your hearts out at the awesomeness of all the other games in theHAG archives!