Operation: Iron Atoll

Operation: Iron Atoll is a high-octane 2D coastal and naval Tower Defense game featuring chunky retro pixel-art and gritty military arcade action.

Take command of island archipelago defense networks across multiple tactical theaters of operation. Build and upgrade fortified gun batteries — from Twin-Vickers autocannons and 155mm coastal howitzers to SAM flak missile arrays, naval torpedo tubes, and active sonar surveillance outposts.

Repel waves of amphibious assault landing crafts, recon speedboats, armored gunboats, stealth attack submarines, and heavy Hind attack gunships before they breach your command base. Call in tactical jet airstrikes, lay offshore sea minefields, and face off against colossal Dreadnought Super-Copter and Submarine boss flotillas.

Tips & Strategy

• ▸ Pair a Sonar Radar with your Depth Mortars early — mortars can't hit what they can't see, and submarines are otherwise invisible until they surface.
• ▸ Save Commander Airstrikes for when a wave clusters multiple armored units together rather than using them on the first threat that appears.
• ▸ SAM Batteries are wasted against sea-only waves — hold that budget until helicopters or Dreadnought-class air threats show up.
• ▸ Upgrading one strong gun battery often outperforms spreading coins thin across several weak ones, especially against armored gunboats.