Features:1. Path finding AI 2. Open Battlefields 3. Visual Upgrades on Towers 4.Unlockable Achievements 5. Medals. Tips:1.Upgrade as much as possible. 2. Build complex paths using tower placments.3. Keep your best towers with range of the enemies flight paths. 4.Large numbers of cheap towers can be as effective as fewer expensive towers.
Mouse controls Only.Full Instructions can be found with the game.