Deplete enemy's invasion forces and stop their offensive. When facing a large number of enemies, the only way to deter them is to use the powerful Haiphong battery.
Enemies are approaching closer and soon they will reach your base. Stop them by strategically placing from defense armies to turret towers in their way.
Use towers to build a labyrinth from entrance to exit. Each tower can be upgraded 4 times. With each wave, enemies will become stronger, so use money you earned to upgrade reasonably.
