About Island Invasion
Island Invasion puts you in charge of a scattered island chain under attack. You build defenses on sandbars, ridges, and docks. Waves push in and enemies try to reach your core. You shape the route with barricades and turn tight spaces into choke points. Each placement matters and the shoreline offers little room.
You start with basic towers and traps and unlock new tools with progress. Upgrades raise range, damage, and rate of fire with clear tradeoffs. Blast cannons clear swarms and long-range guns pick off tough targets. Mines stop fast units near gaps. You earn cash per wave and you decide when to spend or save.
Each map brings new terrain and multiple landing zones. Split lanes change your plan. Boats rush narrow channels and heavy raiders grind along the main path. Boss waves hit hard and force smart target focus. Optional challenges reward clean clears and creative paths. Missions end fast and retries feel painless. You learn more with each run.