Tower Defense Games are based on foundations involving strategies and plans to stop the enemies forwarding by techniques by slowing them down and shooting at them from the cover of a tower. Many titles incorporate upgrade options accessible through the points earned by performing different tasks. Some people claim that playing these free flash compilations enhances the thinking ability of the gamer. The best and most popular of these are Gem Craft, Plants vs Zombies, The Awakening, and so much more. Protect your precious stronghold and defeat all those who trespass. Upgrade your garrison, become unbeatable and conquer all those who oppose.