Save the human race from the onslaught of the war-mongering penguin army! Build towers on the most strategic places, try to make a maze of towers so no penguin will pass to the other side.
Defend your country from a large army of penguin infantry, tanks and planes. Click a tower from the bottom menu and click again somewhere in the game field to build it. Click a tower to upgrade or sell it. Every tower has different characteristics, some only attack enemies on land. Find the best strategy to finish the six campaigns and a bonus level.