Build is the foundation of your defenses. There are 6 types of walls in different length, such as a 1x1 piece. if you want to defend larger areas, you can place 2x1 and 3x1 pieces. There are also corner pieces. A gate can be built, allowing you to move through fortifcations. However, only you can pass through gates, while enemies cannot. Connect walls to your turrets for a defensive icon to show up above your turret.
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