Frontier Defense (Android) Cheats & Tips
Cheats, codes, tips, hacks, how to's, and walkthroughs
Unlock: Free Gifts
In the store, watch videos and unlock free gifts.
Unlock: Free Coins/Gems
Focus on completing achievements in order to unlock free coins and gems.
Tips/Hints: Use Relics Wisely
Purchasing relics can help permanently boost your towers and heroes.