Man the guns in Iron Sea: Frontier Defenders! There's no time to celebrate, we sank only a small part of the enemy fleet! The battle could begin at any moment, and we're in need of your steady hand and strategic mind again to deal with the invaders! Defend the fort against the siege, build cannons, use secret weaponry and have faith in victory!

All the power of artillery in your hands
Powerful cannons and merciless enemies
A unique setting and secret weaponry
Build the ideal defense