Grand Defense is a free version of Antroad game with some changes and additions. And if you are a fan of open field tower defense games, get this game with next Features: - 3 Game Modes (CLASSIC, SURVIVAL, CHILD) - 9 Types of enemies (moving and flying) - 3 Unique towers (some towers can be upgraded) - 5 Super-Bonuses for attack - Additional-Bonuses for extra-attack - Retina Display support - Excellent graphics and sound effects - Game Center support IMPORTANT: Ants are always looking for the shortest way! Big Blue Ants move across the stones! Enjoy!