In Age Of Defense 7, you must not let enemies get close to your shelter because they will start destroying it right away.
Kill anyone who comes forward too quickly to get points that you can use to improve your lair, weapons, and other things. Mostly, don't let them win. Throw rocks and shoot them with a bow and a machine gun.
At first, you'll only have stones to use against enemies, but soon you'll be able to get a bow or a machine gun along with them. If you move the cursor, you can choose how high and far to throw a boulder or aim your gun at targets. You can also use "nature's help" to kill a lot of attackers at once by throwing rocks at them.
Have fun and good luck!
